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DOCUMENT RESUME
ED 107 991 CE 004 204
AUTHOR Pucci, Alex L; Reichel, George F.TITLE An Analysis of the Welding Occupation. .
INSTITUTION Ohio State Dept. of Education, Columbus. Div. ofVocational Education.; Ohio State Univ.,"Columbus.Trade and Industrial Education InstructionalMaterials Lab'.
SPONS AGENCY Office of Education (DHEW), Washington, D.C.PUB DATE [75]NOTE 81p.; For related documents, see CE 004 160-203, CE
004 205-206, CE 004 263-268, and CE 004 425-427
EDRS PRICEDESCRIPTORS
MF-$0.76 HC-$4.43 PLUS POSTAGECommunication Skills; *Job }analysis; Knowledge Level;*Metal Working Occupations; *OccupationalInformation; Safety; Skill Analysis; Skill \
Development; Skilled Occupations; *Task Analysis;Task PerfOrmance; Trade and Industrial Education;Welders; *Welding; Work Attitudes
ABSTRACTThe general purpose Of the occupational analysis is
to provide workable, basic information dealing with the many and .varied duties performed in the welding occupation; It includes thebasic manipulative skills and technical information in the'followingfour areas: oxy /acetylene, electric arc, tungsten inert-gas arc, andmetallic inert-arc welding. The document opens with a briefintroduction followed by a job description. The bulk of the documentis presented in.table form. The four areas are broken down into anumber of tasks and for each task a two -page table is presented,showing on the first page: tools, equipment, materials, objects actedupon; performance knowledge (related also to decisions, cues anderrors); safety--hazard; and on the second page: science;math -- number, systems; and communications (performance modes,examples, and skills and concepts). Also included in the document area brief note on abbreviation of welding terms, and 2 sections onsafety (eye protection and general safety practices). (BP)
***44******************************************************************Documents acquired by ERIC include many informal unpublished
* materials not available from other sources. ERIC makes every effort ** to obtain the best copy available. nevertheless,.items of marginal *
* reproducibility are often encountered and this affects the quality *
* of the microfiche and hardcopy reproductions ERIC makes available *
* via the ERIC Document Reproduction. Service (EDRS). EDRS is not* responsible for the quality of the original document. Reproductions ** supplied by EDRS are the best that can-be made from the original. *
***********************************4!***********************************
P
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5037
AN ANALYSIS OF THE WELDING OCCUPATION
Alex L. PucciVocational Welding InstructorNormandy High SchoolParma, Ohio
Developed By
George F. ReichelV&ational Welding InstructorMax S. Hayes Vocational High SchoolCleveland, Ohio
Occupational AnalysisE.P.D.A. Sub Project 73402
June 1, 1973 to December 30, 1974. Director: Tom L. Hindes
Coordinator: William L. Ashley
The Instructional Materials LaboratoryTrade an . Industrial Education
The Ohio State University
.3
. i-
"The activity whith is the subject of thisreport was supported in whole or in part bythe U.S. Office of Education, Department ofHealth, Education, and Welfare.. However,the opinions expressed herein do not reflectthe position or policy of the U.S. Office of,Education, and no official endorsement bythe U.S. Office of Education should be
, inferred."
q
TABLE OF CONTENTS
Foreword v
Preface vii
Acknowledgment ix
Job Description xi
Duties
I. Oxy/ Actylene Welding 1
II. Electric Arc Welding 27III. Tungsten Inert-Gas Arc Welding 43IV. Metallic Inert-Gas Arc Welding 59
Abbreviations 69
Eye Protection 71
Index: Safe Practices in Welding 73
S
iii
FOREWORD
The occupational analysis project was conducted by The Instructional Materials Laboratory, Tradeand Industrial Education, The Ohio State University in conjunction with the State Department ofEducation, Division of Vocational Education pursuant to,a grant from the U.S. Office of Education.
The Occupational Analysis project was proposed and conducted to train vocational educators in thetechniques of making'a comprehensive occupational analysis. Instructors were selected from Agricul-ture, Business,' Distributive, Home Economics and Trade and Industrial Education to gain experiencein developing analysis documents for sixty-one different occupations. Representatives from Business,Industry, Medicine, and Education were involved with the vocational instructors in conducting theanalysis process.
The project was condred in three phases. Phase one involved the planning and developmentof theproject strategies. The analysis process was based on sound principles of learning and behavior. Phasetwo was the identification, selection and orientation of all participants. The training and ,vorkshop.sessions constituted the third phase. Two-week workshops were held during which teams of vocationalinstructors conducted an analysis of the occupations in which they had employment .experience. Theinstructors were assisted by both occupational consultants and subject matter specialists.
The project resulted in producing one hundred two trained vocational instructors capable of conduct-ing and assisting in a comprehensive analysis of various occupations. Occupational analysis datawere generated for sixty-one occupations. The analysis included a statement of the various tasksperformed in each occupation. For each task the following items were identified: tools and equip-ment; procedural knowledge; safety knowledge; concepts and skills and mathematics, science andcommunication needed for successful performance in the occupation. The analysis data provided abasis for generating instructional materials, course outlines, student performance objectives, criterionmeasures, as well as identifying specific supporting skills and knowledge in the academic subjectareas.
PREFACE
The information compiled in this document is en analysis of the requiredskills used in the performance of duties and tasks by the average welder. Itincludes the basic manipulative skills and tech -deal information in the fol-lowing four areas: oxy/acetylene, electric arc, tungsten inert-gas arc, andmetaiiic inert-gas arc welding.
1
Vii
ACKNOWLEDGMENT
i \
we wish to acknowledge the valuable assistance rendered by the following subject matter specialists.They provided input to the vocational instructors in identifying related skills-'and concep4 of eachrespective subject matter area and served as training assistants in the analysispro' cess during thetwo-week workshops. , ,
Rollin M. Barber, PsychologyThe Ohio State UniversityColumhus, Ohio ,
Jodi Beittel, CommunicationsColumbus, Ohio
Diana L. Buckeye, MathematicsUniversity of MichiganAvon Lake, Ohio
Rick Fien, ChemistryThe Ohio State UniversityBeechwood, Ohio
N. S. Gidwani, ChemistrColumbus Technical InstituteColumbus,-Ohio
Bruce A. Hull, BiologyThe Ohio State UniversityColumbus, Ohio
Donald L. Hyatt, PhysicsWorthington High School
. Worthington, Ohio
8
Glenn Mann, CommunicationsColumbus, Ohio
----Jerry McDonald, Physical SciencesColumbus-Technical InstituteReynoldsburg, Ohio
Colleen.Osinski, PsychologyColumbus Technical InstituteColumbus, Ohio
David Porteous, CommunicationsUniversity of ConnecticutColchester, Connecticut
James A. Sherlock, communicationsColumbus Technical InstituteColumbus, Ohio
Jim VanArsdall, MathematicsWorthington High SchoolWorthington,,, Ohio
Lillian Yontz, BiologyThe Ohio State UniversityCaldwell, Ohio
Acknowledgment is extended to the following I.M.L. staff members for their role in conducting the'workshops; editing, revising, proofing and typing the analyses.
Faith Justice Research AssociateSheila Nelson Administrative AssistantMarsha Opritza Editorial ConsultantRita Buccilla TypistCarol Fausnaugh TypistMindy Fausnaugh TypistRita Hastings TypistCarol Hicks TypistSue Holsinger TypistBarbara Hughes TypistCarol Marvin TypistKathy Roediger Typist
0
JOB DESCRIPTION
\A welder selects equipment, plans layout and 'welding procedure whileapplying knowledge of basic measurement skills and concepts, and the weld-ing characteristics and physical properties of metals; sets up equipment andwelds parts using arc or gas welding,equipment; repairs products by dis-mantling, straightening, reshaping, and re-assembling. them using cuttingtorch, straightening equipment and proper hand tools.
A\ welder also secures parts in position for welding by clamping, tack weld-ink, or bolting; fits and welds components which have been fabricated, cast,or fpiged to assemble structural forms according to blueprings; performswelding operations in the flat, horizontal, vertical and overhead positions,utilizing all types of joint design.
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DUTY I. OXY/ACETYLENE WELDING
A. Set up and test equipmentB. Oxy/acetyl weld mild steelC. Oxy/ acetyl weld pipeD. Oxy/acetyl weld cast-ironE. Braze mild steelE. Braze cast-ironG. Silver Braze stainless steelH. Silver braze coPer alloys1. Cut using oxy/ acetyleneJ. Form and bendlc. HardfaceL. Soft solder
(TA
SK
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AT
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1-A
SE
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and
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with
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ose
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Oxy
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orch
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orch
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pply
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ulat
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tyle
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ttach
Oxy
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and
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espe
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e su
pply
Atta
ch to
rch
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t acc
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ng to
saf
ety
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edur
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Ref
er to
Inde
x un
der
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e P
ract
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rX
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afet
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r H
and
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ls:-
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ms
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ru 3
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DE
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UE
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ER
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sual
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ard
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ases
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ipm
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Rel
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astic
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isto
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] a
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asic
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Log
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AT
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t Wel
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ipm
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iller
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erm
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lect
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od s
ize
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ct ti
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Wel
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acc
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nce
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rope
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oced
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Ref
er to
Ind
ex u
nder
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e Pr
actic
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Safe
ty P
recd
utio
ns f
or H
and
Too
ls -
-(It
ems
thru
10]
XIX
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ti-A
cety
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Wel
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ms
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5]
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eter
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lect
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Det
erm
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App
rais
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nditi
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wel
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ob R
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ign
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ase
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eld
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or w
eld
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eld
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mat
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ne b
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phy
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and
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port
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aren
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al]
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raph
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.
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ater
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e 'w
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ater
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ded
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low
ora
l Ins
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rais
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olog
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ogic
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ture
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sage
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min
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ge
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ic C
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e ta
king
Vis
ual a
naly
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ic. D
escr
imm
atio
n. D
etai
l.R
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nitio
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sym
bols
. Cod
es. e
tc.
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. Sha
pe. t
empe
ratu
re
(TA
SK
ST
AT
EM
EN
T)
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CE
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L W
ELD
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.TO
OL,
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NT
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TE
RIA
LS,
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JET
S A
CT
ED
UP
ON
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/ Ac
tyle
ne E
quip
men
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ater
ials
:S
teel
Pip
eM
. S. f
iller
rod
Alig
ning
fixt
ure
S. I
I. as
req
uire
d
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PE
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OR
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NC
E K
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WLE
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ES
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ET
Y -
HA
ZA
RD
Det
erm
ine
join
t des
ign
Sel
ect f
iller
rod
Sel
ect t
ip s
ize
Det
erm
ine
wel
d po
sitio
nA
lign
wor
kP
erfo
rm w
eldi
ng in
acc
orda
nce
to p
rope
r pr
osed
ure
Ref
er to
Inde
x un
der
Saf
e P
ract
ice.
X -
-Saf
ety
Pre
caut
ions
for
Han
d T
ools
--
[Item
s I t
hru
10]
XIX
-O
xy-A
cety
lene
Wel
ding
{Ite
ms
I thr
u 35
],
DE
CIS
ION
Si
' Det
erm
ine
join
t des
ign
' -S
elec
t fill
erS
elec
t tip
'siz
e
1
Det
erm
in w
eld
posi
tion
App
rais
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ish
wor
k by
vis
ual i
nspe
ctio
n
CU
ES
Spe
cific
atio
ns, j
ob r
equi
rem
ents
Met
al th
ickn
ess
Am
ount
hea
t req
uire
dE
ase
of a
pplic
atio
nA
ppea
ranw
, pen
etra
tion,
uni
form
ity, e
tc.
ER
RO
RS
Will
not
mee
t job
spe
cific
atio
nsP
oor
wel
d qu
ality
Poo
r w
eld
qual
ityP
oor
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d qu
ality
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r w
eld
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WE
LD
PIP
E,
SC
IEN
CE
.
MA
TH
- N
UM
BE
R S
YS
TE
MS
..
...
Sim
ple
chin
es u
sed
to g
ain
mec
hani
cal a
than
tage
.E
ffect
of e
atin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls.
lrans
ferp
f hea
t fro
m o
ne b
ody
to a
noth
er.
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
n st
ruct
ure
and
stre
ngth
of m
ater
ials
./
[Typ
es a
ind
Phy
sica
l pro
pert
ies
of S
teel
Pip
e]I i !
'
i I i i i \/
,S
et o
f Rea
l Num
bers
-PO
S113
CR
atio
nals
[Fra
ctio
ns]
.0F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Mul
tiplic
atio
n al
gorit
hm.
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
, i e
.. U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ion,
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts[B
asic
mea
sure
men
ts]
Mea
sure
mem
. Geo
met
ricLi
near
Ang
leM
easu
rem
ent.
Non
-geo
met
ricT
emN
i-atu
reR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
floo
r pl
ans/
blu
eprin
tsB
asic
Geo
met
ry S
kills
and
Con
cept
sK
now
ledg
e of
geo
met
ric r
elat
ions
hips
-.
Par
alle
lP
erpe
ndic
ular
Det
erm
inat
ion
of a
rea
and
circ
umfe
renc
e of
circ
le,
Det
erm
inat
ion
of a
rea
and
perim
eter
of a
n el
lipse
.D
eter
min
atio
n of
fact
s in
volv
ing
lines
tang
ent t
o ci
rcle
s.
-.
I \.
CO
MM
UN
ICA
TIO
NS
i
1-
.
PE
RF
OR
MA
NC
E, M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spc
skin
g
Rea
ding
,k r
isin
g
List
enin
g
Vie
win
g
oT
ouch
ing
III I
r--
.
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ials
Inte
l met
blu
eprin
t and
writ
ten
spec
ifica
tions
Mca
sure
and
1.,y
out p
ipe
acco
rdin
g to
blu
eprin
t or
sket
ch.
Mak
e w
ritte
n re
quis
ition
for
mat
eria
ls n
eede
d
Fol
low
ora
l Ins
truc
tions
if g
iven
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
. Exa
min
e fin
ishe
d pr
oduc
t
l
,
Ter
min
olog
y, L
ogic
, Ges
ture
s, U
sage
Com
preh
ensi
on, D
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Ter
min
olog
, Log
ic, U
sage
Dis
crim
inat
e F
acts
, Log
ic; C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc.
Sim
, Sha
pe, T
empe
ratu
re .
.
7
(TA
SK
ST
AT
EM
EN
T)
OX
Y/A
CE
TY
L -
WE
LD
CA
ST I
RO
N
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
Oxy
-Ace
tyl4
ieW
eldi
ng E
quip
men
tS
. T. a
s ne
eded
Cas
t Iro
n (F
iller
Rod
Cas
t Iro
n 'M
ater
ial
Flu
x
Det
erm
ine
Join
t pre
para
tion
Det
erm
ine
fille
r ro
d si
zeD
eter
min
e tip
siz
eD
eter
min
e ne
cess
ity o
f pre
heat
/ pos
thea
tD
eter
min
eux
Com
plet
e w
Id a
ccor
ding
to c
orre
ct p
roce
dure
.
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
Det
erm
ine
type
Joi
nt p
repa
ratio
nD
eter
min
e fil
ler
rod
SIM
Det
erm
ine
tip s
ize
Det
erm
ine
nece
ssity
of p
rehe
at/ p
osth
eat
Sel
ect f
lux
Com
plet
e w
eld
acco
rdin
g to
pro
per
proc
edur
e
SA
FE
TY
- -
HA
ZA
RD
Ref
er to
Inde
x un
der
Saf
e P
ract
ice
XS
afet
y P
reca
utio
ns fo
r H
and
Too
ls -
[Item
s I t
hru
10]
XIX
OX
Y-A
cety
lene
Wel
ding
-- [I
tem
s I t
hru
35]
CU
ES
Job
r-.1
uire
men
t, co
nditi
on o
f met
alD
eter
min
e by
par
ent m
etal
thic
knes
sD
cter
min
: by
pare
nt m
etal
thic
knes
sW
eigh
t and
des
ign
of c
astin
g.A
pro
cedu
re n
eces
sity
.V
isua
l and
spe
citw
atio
n.
ER
RO
RS
Por
osity
, poo
r qu
ality
wel
dP
oor
qual
ity. h
ard
spot
s in
wel
dP
oor
fusi
on, p
oros
ity, l
ack
of p
enet
ratio
n.U
neve
n ex
pans
ion
and
cont
ract
ion,
pos
sibl
e cr
acki
ng c
ondi
tion
Poo
r fu
sion
, por
osity
, har
d sp
ots
in w
eld.
I
SC
IEN
CE
.M
AT
H -
NU
MB
ER
SY
ST
EM
S.
!S
impl
e m
achi
nes
used
to g
ain
mec
hani
cal a
dvan
tage
......
.-t
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
,
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
.F
unda
men
tal O
pera
tions
(C
alcu
latio
n)F
luid
s un
der
pres
sure
..A
dditi
on a
lgor
ithm
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
erS
ubtr
actio
n al
gorit
hmA
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
fect
on
..M
ultip
licat
ion
algo
rithm
stru
ctur
e an
d st
reng
th o
f mat
eria
ls.
.R
esis
tanc
e of
mat
eria
ls to
cha
nge
in s
hape
.D
ivis
ion
algo
rithm
Ord
er o
f ope
ratio
ns, i
.e.,
Use
of p
aren
thes
es in
sim
plify
ing
arith
met
ic e
xpre
ssio
ns
iB
asic
Mea
sure
men
t Ski
lls a
nd.C
once
pts
1
Inst
rum
ents
liBas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
linea
r.
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sS
cale
dra
win
gs, f
loor
pla
ns! b
luep
rints
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
1
"Rat
io a
nd p
ropr
otio
n(A
mou
nt o
f pre
heat
nee
ded
in r
elat
ion
to th
e w
eigh
t and
des
ign
of c
astin
g]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
gM
ake
oral
req
uisi
tion
for
mat
eria
lsT
erm
iiioh
I Ogl
e, G
estu
re, U
sage
.R
eadi
ngR
ead
preh
eat a
nd p
osth
eat t
empe
ratu
res
as n
oted
inC
ompt
ehen
1,,n
. Det
ail,
Pro
posa
ls, D
escr
iptio
n,-
writ
ten
or o
ral i
nstr
uctio
nsIn
terp
ret b
luep
rint a
nd w
ritte
n sp
ecifi
catio
ns7
ennu
i, )1
, 4,1
Inst
ruct
ion
..
Writ
ing
1M
ake
writ
ten
requ
isiti
ons
for
mat
eria
ls n
eede
dS
ketc
hI)
,,r
iptio
n, L
ogic
, Ter
min
olog
y, U
sage
.
List
enin
gfo
llow
ora
l Ins
truc
tions
1)1,
0 U
nit
ICla
cts.
Log
ic. C
once
ntra
tion,
Not
e ta
king
Vie
win
g
Tou
ghin
gI
Exa
min
e fin
ishe
d w
eld
.,
X is
ual a
l.,,R
,is, L
ogic
, Dis
crim
inat
ion,
Det
ail,
it,,,,
cml I
. n o
f sym
bols
, Cod
es, e
tc
1,,
1),Ip
e. T
empe
ratu
re.
9
(TA
SK
ST
AT
EM
EN
T)
1-E
BR
AZ
E M
ILD
ST
EE
L20
TO
OLS
,l',
2UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D...
OxY
/Ace
tyle
ine
Equ
ipm
ent
,N n
alyz
e jo
b re
quire
men
tsR
efer
to In
dex
unde
r S
afe
Pra
ctic
eM
. S. M
ater
ial
ticte
ct fi
ller
rod
size
X S
afet
y P
reca
utio
ns fo
r H
and
Too
ls [I
tem
s I t
hru
10]
Bro
nze
Fill
er R
odS
elec
t tip
siz
eX
IX--
OX
Y-A
cety
lene
Wel
ding
--
[Item
s I t
hru
3S]
Pro
per
Flit
xC
lean
and
pre
pare
join
tS
. T. a
s riq
uire
dD
eter
min
e w
eld
posi
tion
App
ly p
rope
r flu
x an
d co
mpl
ete
braz
ing
oper
atio
nin
acc
orda
nce
to p
rope
r pr
oced
ure
,
I
.
f_
.
..
.
-.
DE
CIS
ION
S.
CU
ES
ER
RO
RS
.iA
naly
ze'
b re
quire
men
tJo
b re
quire
men
tsjo
Will
not
mee
t job
req
uire
men
tS
elec
t rod
, siz
eM
etal
thic
knes
s/jo
int d
esig
nP
oros
ity. P
oor
bond
Sel
ect t
ip s
ize
Met
al th
ickn
essh
oint
des
ign
Por
osity
, poo
r bo
ndD
eter
min
e po
sitio
nE
ase
of a
pplic
atio
nP
oros
ity, p
oor
bond
App
rais
e fin
ishe
d jo
int b
!. us
ual i
nspe
ctio
nG
enia
l app
eara
nce,
uni
form
ity o
f bea
dP
oros
ity, p
oor
bond
appe
aran
ce
1
/
.,
.'
.
.
(TA
SK
ST
AT
EM
EN
T)
BR
AZ
E M
ILD
ST
EE
L
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge.
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
ofm
ater
ials
Tra
nsfe
r of
ene
rgy
from
one
form
to a
noth
er[g
ases
and
fluN
est
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
Met
allu
rgic
al r
easo
ns fo
r bo
nd
Set
of R
eal N
umbe
rsP
ositi
e R
atio
nal,
I und
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Mul
tiplic
atio
n al
gorit
hm()
pist
on a
lgor
ithm
Ord
er o
f ope
ratio
ns, i
.eU
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
- [B
asic
Mea
sure
men
t)M
easu
rem
ent:
Geo
met
ricLi
near
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sS
cale
dra
win
gs fl
oor
plan
s; b
luep
rints
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
pts
Rat
io a
nd p
ropo
rtio
n[b
ond
prop
ortio
nate
to p
aren
t met
al]
CO
MM
UN
!CA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
EX
AM
PLE
S
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
for
mat
eria
ls h
eede
d
Fol
low
ora
l ins
tric
tions
if gi
ven
Exa
min
e w
ork
piec
e an
d fin
ishe
d pr
oduc
t
SK
ILLS
/CO
NC
EP
TS
'
Ter
min
olog
y, L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on. D
etai
l. P
ropo
sals
. Des
crip
tion,
Ter
min
olog
y. In
stru
ctio
n
Ske
tch.
Des
crip
tion,
Log
ic. T
erm
inol
ogy;
Usa
ge
Dis
crim
inat
e fa
cts.
Log
ic. C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis.
Log
ic. D
iscr
imin
atio
n. D
etai
l.,
Rec
ogni
tion
of s
ymbo
ls. C
odes
, etc
.
Sae
, Sha
pe. T
empe
ratu
re
11
(TA
S!C
ST
AT
EM
EN
T)
BR
AZ
E C
AST
IR
ON
22T
OO
LS, E
QU
IPM
EN
T, M
AT
ER
IALS
,'O
BJE
CT
S A
CT
ED
UP
ON
1
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
YH
AZ
AR
D
1
Oxy
-ALe
t.S
. T:
Cas
t...
Bio
nze
Flu
x
I I
,
Equ
ipm
ent
as r
equi
red
iron
mat
eria
lfil
ler
rod
_
.
..
..
..
.
Det
erm
ine
prep
arat
ion
need
edS
elec
t fill
er r
od s
ize
Sel
ect t
ip s
ireD
eter
min
e po
sitio
nD
eter
min
e pr
ehea
t / p
osth
eat
App
ly p
rope
r flu
x-co
mpl
ete
braz
ing
oper
atio
n fo
llow
ing
prop
er p
roce
dure
s.
,
.
.
.
,i.
Ref
er to
Inde
x un
der
Saf
e P
ract
ice
XS
afet
y P
reca
utio
ns fo
r H
and
loot
s [h
ems
I thr
u 10
]X
IX--
OX
YA
cety
lene
Wel
ding
--[It
eins
I th
ru 3
51
.
...
:-
%
Det
erm
Sel
ect f
llS
elec
t tD
eter
mD
eter
mA
ppra
i
'
DE
CIS
ION
SC
UE
SE
RR
OR
-
ne p
repa
ratio
n ne
eded
rod
sire
,p
size
-.
ne p
ositi
onne
pre
heat
ipos
thea
tfin
ishe
d w
ork
.....
.
t A.
Ii
,
.Jo
b re
quire
men
t, jo
int d
esig
n, c
ondi
tion
of m
etal
Job
requ
irem
e3ym
etal
thic
knes
s, b
ead
sire
.M
etal
thic
knes
s"
7. J
ob r
equi
rem
ent
v.Jo
b re
quire
men
tA
ppea
ranc
e. u
nifo
rmity
.
Por
osity
, poo
r ad
hesi
onP
oros
ity, p
oor
adhe
sion
Poo
r ad
hesi
on, a
ppea
ranc
eP
oor
aope
arnc
eU
neve
n ex
pans
ion
and
cont
ract
ion
<r
,
..
,
(TA
SK
ST
AT
EM
EN
T)
I-F
BR
AZ
E C
AST
IR
ON
SC
IEN
CE
..
.,
MA
TH
- N
UM
BE
R S
YS
TE
MS
.
0S
impl
e m
achi
nes
used
to g
ain
mec
hani
cal a
dvan
tage
[use
of S
.T.]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
[cra
cks]
Flu
ids
unde
r pr
essu
re--
[gas
]__
----
---
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er -
- [m
etal
s].-
----
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
[wel
d an
d m
ater
ial]
Res
ista
nce
of m
ater
ials
to c
hang
e in
sha
pe[c
ast i
ron
cann
ot b
e be
nt o
r sh
aped
at a
ny te
mpe
ratu
re]'
Met
allu
rgic
al r
easo
ns fo
r bo
nd.
....
-..
.
e.
.1
.
.
..
Set
of-
Rea
l Num
bers
Pos
itive
Rat
iona
lsF
unda
men
tal O
pera
tions
'(Cal
eula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
.
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
, i e
., U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
.In
stru
men
ts (
Bas
ic M
easu
rem
ent].
:Mea
sure
men
t: G
eom
etric
Line
ar-
, .R
eadi
ng a
nd in
terp
retin
g ta
blis
';cha
rts,
and
gra
phs
Sca
le d
raw
ings
:floo
r pl
ans/
blue
prin
ts
'
...-
'
.
.
..
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
.
,
.,
Spe
akin
g\
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
.
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Rea
d pr
ehea
t and
pos
thea
t tem
pera
ture
s as
not
ed in
writ
ten
or o
ral i
nstr
uctio
nsIn
terp
ret b
luep
rint a
nd w
ritte
n sp
ecifi
catio
ns
Mak
e w
ritte
n re
quis
ition
fefo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e fin
ishe
d w
ork
,.
-
.)
r
Ter
min
olog
y, L
ogic
, Ges
ture
. Usa
ge
Com
preh
ensi
on. D
etai
l, P
ropo
sals
. Des
crip
tion,
Ter
min
olog
y, In
stru
ctio
n.
Ske
tch,
Des
crip
tion.
Log
ic. T
erm
inol
ogy.
Usa
ge
Dis
crim
inat
e fa
cts.
Log
ic. C
once
ntra
tiony
Not
e ta
king
,V
isua
l ana
lysi
s. L
ogic
. Dis
crim
inat
ion.
Det
ail.
Rec
ogni
tion
of s
ymbo
ls. C
odes
, etc
.
Siz
e. S
hape
. Tem
pera
ture
(TA
SK
ST
AT
EM
EN
T)
i-G
SIL
VE
R B
RA
ZE
ST
AIN
LE
SS S
TE
EL
24
TO
OLS
, EQ
UIP
ME
NT
,,
MA
TE
RIA
LS.
OB
JEC
TS
AC
TE
D U
PO
N 'I ,
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
Oxy
/Ace
tykn
e W
eldi
ngM
ater
ial:
Sta
inle
ss S
teel
Silv
er A
lloy
fille
rS
ilver
bra
zing
flux
S. T
. as
requ
ired .,
,
Equ
ipm
ent/
..fi
;w
ire
I
.4 I
.
.r-
I i t i i.
,ppR
-
f i 4
-C
.
,
Det
erm
ine
join
t des
ign
Sel
ect t
ype
and
size
of f
iller
wire
Sel
ect t
ip s
ize
Cle
an a
nd p
repa
re jo
int
Det
erm
ine
posi
tion
App
ly p
rope
r flu
x co
mpl
ete
wor
k in
acc
orda
nce
to p
rope
r pr
oced
ure
,.
,
.
.
Ref
er to
Inde
x un
der
Saf
e P
ract
ice
l'
X. S
afet
y P
reca
utio
ns fo
r H
and
1 oo
ls -
-[Ite
ms
I thr
u 10
].:
XIX
OX
Y-A
cety
lene
Wel
ding
{Ite
ms
I thr
u 35
]
.,
.
",
.
,
.. .
..
Det
erm
ine
join
t de
Sel
ect t
ype/
size
fill
Sel
ect t
ip s
ize
Det
erm
ine
posi
t:on
App
rais
e fin
ishe
dw
o
-.,..
.
.
DE
CIS
ION
S
.
r
.
CU
ES
ER
RO
RS
i gn , \k b
y vi
sual
insp
ectio
n
\ k\ \ \ \ it V. ; %
Job
requ
irem
ents
Phy
sica
l, ch
emic
al p
rope
rtie
sA
mou
nt o
f hea
t req
uire
men
tE
ase
of a
pplic
atio
nG
ener
al a
ppea
ranc
e, p
oros
ity, u
nifo
rmity
,
.. .
,.
Will
not
mee
t job
spe
cific
atio
nsW
ill n
ot m
eet j
ob s
peci
ficat
ions
-
Poo
r bo
ndin
g,
Poo
r bo
ndin
gE
xces
sive
hea
t, br
eaks
dow
n ph
ysic
al p
rope
rtie
s of
bas
e m
etal
.
(TA
SK
ST
AT
EM
EN
T)
I-G
SIL
R B
RA
ZE
ST
AIN
LE
SS S
TE
E.
SC
IEN
E.
_
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
geH
use
of s
tand
ard
tool
s)E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[d
isto
rtio
n]T
rans
fer
of e
nerg
y fr
om o
ne fo
rm to
ano
ther
[che
rrac
al r
eact
ion
of fl
uxes
].
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[c
apill
aik
actio
n]
effe
ct
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
e fe
et o
n.
stru
ctur
e an
d st
reng
th o
fm
ater
ials
[str
engt
hof
b n
d][P
hysk
.al a
nd c
hem
ical
pro
pert
ies
of S
ilver
Allo
ys a
nbr
azin
g flu
xes]
[Typ
es o
f sta
inle
ss s
teel
allo
ys]
i
-
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nal
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
, i e
.. U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
ei.p
ress
ions
Bas
ic M
easu
rem
ent S
kill.
- an
d C
once
pts
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
.f,M
easu
rem
ent.
Geo
met
ricLi
near
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sS
cale
dra
win
gs/fl
oor
plan
s/bl
uepr
ints
.B
asic
Arit
hmet
ic S
kills
and
Con
cept
s[B
ond
Pro
port
iona
te p
aren
t met
al]
'C
OM
MU
NIC
AT
ION
S.,
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S_
Spe
akin
g..
.
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ials
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
Per
form
ope
ratio
n. a
ppra
ise
finis
hed
wor
k
Ter
min
olog
y. L
ogic
, Ges
ture
. Usa
ge
Com
preh
ensi
on. D
etai
l, P
ropo
sals
. Des
crip
tion,
Ter
min
olog
y. In
stru
ctio
n
Ske
tch.
Des
crip
tion,
Log
ic. T
erm
inol
ogy.
Usa
ge
Dis
crim
inat
e fa
cts.
Log
ic. C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis.
Log
ic. D
iscr
imin
atio
n. D
etai
l.R
ecog
nitio
n of
sym
bols
. Cod
es. e
tc.
Sim
Sha
pe. T
empe
ratu
re
15
5
(TA
SK
STA
TE
ME
NT
)IH
SIL
VE
RB
RA
ZE
CO
PPE
R A
LL
OY
S
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
...
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
Det
erm
ine
Join
t des
ign
Det
erm
ine
prep
arat
ion
need
edS
elec
t tip
siz
eD
eter
min
e po
sitio
nC
ompl
ete
braz
ing
oper
atio
n fo
llow
ing
prop
er p
roce
dure
Ref
er to
Inde
x un
der
Saf
e P
ract
ice
X-
Saf
ety
Pre
cabt
ions
for
Han
d T
ools
--[It
ems-
1 th
ru 1
0]X
IX--
°V
I-A
cety
lene
Wel
ding
[Ite
ms
I thr
u 35
]
Job
requ
irem
ent
Job
requ
nrrc
ent
Thi
ckne
ss o
f bas
e m
etal
Thi
ckne
ss o
f bas
e m
etal
Eas
e of
app
licat
ion
App
eara
nce,
spe
cific
atio
n
CU
ES
ER
RO
RS
Wea
kene
d w
eldm
cnt
Por
osity
, poo
r ad
hesi
onP
oros
ity, p
oor
adhe
sion
Mat
eria
l was
teP
oor
qual
ity a
nd a
ppea
ranc
e
(TA
SK
ST
AT
EM
EN
T)
-H S
ILV
ER
BR
AZ
E C
OP
PE
R A
LLO
YS
Sr:
IEN
CE
-7M
AT
H -
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se o
fS
tand
ard
tool
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls--
[sire
, sha
pe]
Flu
ids
unde
r pr
essu
re-
-[ga
s]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
--
[rap
id tr
ansm
issi
onj
Arr
ange
men
t of m
olec
ules
. ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
- -
[wel
dan
d m
ater
ial]
[Diff
eren
t silv
er b
razi
ng m
ater
ials
ava
ilabl
e]
Set
of R
eal N
umbe
rsP
csiti
ye R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n ;a
lgor
ithm
Mul
tiplic
atio
n al
gorit
hmD
ivis
ion
algo
rithm
Ord
er o
f ope
ratio
ns. L
eU
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
Line
a[R
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ipgr
floo
r pl
ans/
blue
prin
ts
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
EX
AM
PLE
S
Mak
e o'
ral r
equi
sitio
ns fo
r m
ater
ials
_
.In
terp
ret b
luep
rint a
nd w
ritte
n sp
ecifi
catio
ns
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded.
Fol
low
ora
l ins
truc
tions
App
rais
e jo
b
SK
I L L
S/C
ON
CE
PT
S
Ter
min
olog
y. L
ogic
. Ges
ture
. Usa
ge
Com
preh
ensi
on, D
etai
l. P
ropo
sals
. Des
crip
tion,
Ter
min
olog
y. In
stru
ctio
n.
Ske
tch,
Des
crip
tion,
Log
ic; T
erm
inol
ogy.
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic. C
once
ntra
tion.
Not
e ta
king
,
Vis
ual a
naly
sis.
Log
ic, D
iscr
imin
atio
n. D
etai
l,R
ecog
nitio
n of
sym
bols
. Cod
es. e
tc.
Siz
e. S
hape
. Tem
pera
ture
17
(TA
SK
ST
AT
EM
EN
T)
I-I C
UT
USI
NG
OX
Y/A
CE
TY
LE
NE
'1
2N
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D' U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
' SA
FE
TY
HA
ZA
RD
Oxy
; Ace
tyle
ne E
quip
men
tC
uttin
g T
orch
Ass
embl
yM
. S. M
ater
ial
S. T
. as
requ
ired
Det
erm
ine
job
requ
irem
ents
Lay
out m
ater
ial u
sing
cen
ter
punc
h or
scr
ibe
Sekc
t tip
siz
eSe
lect
pro
per
gas
pres
sure
sPr
ehea
t to
star
t cut
Ope
n ox
ygen
torc
h cu
tting
val
ve a
nd p
roce
ed to
com
plet
ecu
t fol
low
ing
layo
ut
Ref
er to
Ind
ex u
nder
Saf
e Pr
actic
eX
Saf
ety
Prec
autio
ns f
or H
and
Too
ls[I
tem
s I
thru
SO
] v
XIX
OX
Y-A
cety
lene
Wel
ding
[Ite
ms
I th
ru 3
5]
1,
DE
CIS
ION
S
Job
requ
irem
ents
Sele
ct ti
p si
zeSe
lect
gas
pre
ssur
esE
valu
ate
fini
shed
cut
vis
ually
CU
ES
.
Job
requ
irem
ents
Thi
ckne
ss o
f m
etal
to b
e cu
tT
hick
ness
of
met
al to
be
cut
Cut
sho
uld
have
uni
form
ker
f, s
quar
e ed
ge.
ER
RO
RS
Impr
oper
cut
Impr
oper
cut
Impr
oper
cut
Exc
eisi
ve s
lag,
rou
gh e
dge,
ker
f to
o w
ide
is.
(TA
SK
ST
AT
EM
EN
T)
I-I C
UT
US
ING
OX
Y/A
CE
TY
LEN
E
SC
IEN
CE
.,
MA
TH
- N
UM
BE
R S
YS
TE
MS
.
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge--
[use
of s
tand
ard
tool
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls [d
isto
rtio
n],
Flu
ids
unde
r pr
essu
re[a
war
enes
s of
gas
es u
nder
pre
ssur
e]
'
.
,
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of O
pera
tions
. i.e
., U
se o
f par
enth
eses
in..§
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
ask
Mea
sure
men
ts S
kills
and
Con
cept
sIn
stru
men
ts[B
asic
Mea
sure
men
t]M
easu
rem
ent:
Geo
met
ricA
ngle
Mea
sure
men
t: N
on-g
eom
etric
Tem
pera
ture
-
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sM
aps
Bas
ic G
eom
etry
Ski
lls a
nd C
once
pts
Kno
wle
dge
of g
eom
etric
rel
atio
nshi
psP
aral
lel
Per
pend
icul
ar-
Det
erm
inat
ion
of a
rea
and
circ
umfe
renc
e of
circ
les.
Det
erm
inat
ion
of a
rea
and
perim
eter
of a
n el
lipse
.D
eter
min
atio
n of
fact
s in
volv
ing
lines
tang
ent t
o ci
rcle
s.
....
I.
,-
CO
MM
UN
ICA
TIO
NS
.,
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
gA
i.
Tou
chin
g
,
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
for
mat
eria
ls n
eede
d
Lay-
out j
ob a
ccor
ding
to b
luep
rint,
sket
ch, o
r in
stru
ctio
nS
et p
ress
ures
acc
ordi
ng to
man
ufac
tiire
rsch
art.
.
'Ter
min
olog
y. L
ogic
. Ges
ture
, Usa
ge
Com
preh
ensi
on. D
etai
l. P
ropo
sals
. Des
crip
tion.
Ter
min
olog
y, In
stru
ctio
n.
.
Ske
tch,
Des
crip
tion.
Log
ic. T
erm
inol
ogy.
Usa
ge
Dis
crim
inat
e fa
cts.
Log
ic, C
once
ntra
tion.
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
isLr
imin
atio
n. D
etai
l.. R
ecog
nitio
n of
sym
bols
. Cod
es. e
tc.
Siz
e, S
hape
, Tem
pera
ture
.
.
19
30(T
AS
KA
TE
ME
NT
)14
DA
M A
ND
-B
EN
D
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,'
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
HA
ZA
RD
Oxy
i Ace
tyle
ne E
quip
men
tM
ater
ial t
o be
foim
ed o
r sh
aped
Jigs
and
/or
Fix
ture
s re
quire
dS
. T. a
s re
quire
d
4111
1111
1111
1111
11,
Det
erm
ine
job
reuu
irem
ents
Set
-up
Jig
and/
or fi
xtur
e re
quire
dS
elec
t hea
ting
torc
h an
d tip
siz
eH
eat m
ater
ial u
ntil
plas
tic e
noug
h to
be
form
ed-
to d
esire
d sh
ape
Com
plet
e op
erat
ion
to jo
b re
quire
men
ts
Ref
er to
Inde
x un
der
Saf
e P
ract
ice
X--
Saf
ety
Pre
caut
ions
for
Han
d T
ools
--
[Item
s I t
hru
101
OX
Y-A
cety
lene
Wel
ding
--
[Item
s I t
hru
351
DE
CIS
ION
S
Det
erm
ine
job
requ
irem
ents
Set
-up
Jig
and/
or fi
xtur
eE
valu
ate
finis
hed
prod
uct b
y,vi
sual
insp
ectio
n
Job
requ
irem
ents
Eas
e of
per
form
ance
Job
requ
irem
ents
'
CU
ES
ER
RO
RS
Will
not
mee
t job
spe
cific
atio
nsW
ill n
ot m
eet j
ob s
peci
ficat
ions
Und
esire
d ph
ysic
al p
rope
rtie
s
(TA
SK
ST
AT
EM
EN
T)
14 F
OR
M A
ND
BE
ND
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge -
!-[S
T. a
s ne
eded
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls -
--
[cha
nge
in d
imen
sion
]E
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter
- --
[mat
eria
l is
mad
e pl
astic
]A
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
fect
on
stru
ctur
e an
d st
reng
th o
f mat
eria
ls -
- {c
hang
e ph
ysic
al p
rope
rtie
s]
..
Set
of R
eal N
umbe
rs-
- P
osits
e R
atio
nals
fund
amen
tal O
pera
tions
(C
alcu
latio
n/A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Mul
tiplic
atio
n al
gorit
hmD
ivis
ion
algo
rithm
Ord
er o
f ope
ratio
ns. i
.eU
se o
f par
enth
eses
in s
impl
it}in
g ar
ithm
etic
exp
ress
ions
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts -
-[B
asic
Mea
sure
men
t]M
easu
rem
ent:
Geo
met
ricLi
near
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sS
cale
dra
win
gs 'f
loor
pla
ns/b
luep
rints
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g3
EX
AM
PLE
S
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Layo
ut jo
b ac
cord
ing
to b
luep
rint,
sket
ch, o
r or
al in
stru
ctio
nIn
terp
ret b
luep
rint a
nd w
ritte
n sp
ecifi
catio
ns
Mak
e w
ritte
n re
quis
ition
for
need
ed
Fol
low
ora
l ins
truc
tions
Per
form
ope
ratio
n, a
ppra
isal
fini
shed
wor
k
SK
ILLS
/CO
NC
EP
TS
Ter
min
alog
y, L
ogic
, Ges
ture
. Usa
ge
Com
preh
ensi
on. D
etai
l, P
ropo
sals
. Des
crip
tion.
'T
erm
inol
ogy.
Inst
ruct
ion
Ske
tch.
Des
crip
tion.
1og
ic.T
erm
inol
og. U
sage
Dis
crim
inat
e fa
ct7s
. Log
ic. C
once
ntra
tion.
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic. D
iscr
imin
atio
n. D
etai
l.R
ecog
nitio
n of
sym
bols
. Cod
es, e
tc
' 'S
im S
hape
. -T
empe
ratu
re
21
al;
(TA
SK
ST
AT
EM
EN
T)
I-K
HA
RD
FA
CE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
1111
1111
1L,
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
:12
SA
FE
TY
- H
AZ
AR
D
Oxy
l Acc
t. eq
uipm
ent
S T
. as
requ
ired
Grin
der
Ste
el o
r S
teel
Allo
y m
ater
ial
Har
dfac
ing
fille
r ro
d
Det
erm
ine
join
t des
ign
Det
erm
ine
prep
arat
ion
need
edS
elec
t tip
siz
eS
elec
t fill
er r
od s
ize
and
type
Det
erm
ine
posi
tion
Com
plet
e ha
rdfa
cing
ope
ratio
n --
follo
win
gpr
oper
pro
cedu
re
Ref
er to
Inde
x un
der
Saf
e P
ract
ice
XS
afet
y P
reca
utio
ns fo
r H
and
I ool
s--
[Item
s I t
hru
10]
XIX
OX
Y-A
cety
lene
Wel
ding
[hem
s I t
hru
35]
DE
CIS
ION
S
Det
erm
ine
join
t des
ign
Det
erm
ine
prep
arat
ior
need
edS
elec
t tip
siz
eS
elec
t fill
er r
od s
ize
and
type
Det
erm
ine
posi
tion
App
rais
e fin
ishe
d w
ork
.C
UE
S
Job
requ
irem
ents
Con
ditio
n of
met
al, j
ob r
equi
rem
ent
Thi
ckne
ss o
f bas
e m
etal
Res
ults
des
ired
Eas
e of
app
licat
ion
App
eara
nce
and
spec
ifica
tions
ER
RO
RS
Mat
eria
l was
teP
oor
adhe
sion
, por
osity
Poo
r ad
hesi
on. D
ilutio
n of
bea
dW
rong
phy
sica
l pro
pert
ies
Poo
r ap
pear
ance
too
soft
(TA
SK
- S
TA
TE
ME
NT
)1-
K .I
IIA
RD
FAC
E
.101
01
SC
IEN
CE
VIN
Viii
.
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se c
f sta
ndar
d to
ols]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
--
{cra
cks]
Flu
ids
unde
r pr
essu
re[in
stab
ility
of g
ases
]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[effe
ct o
f adj
acen
t are
as]
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
Res
ista
nce
of m
ater
ials
to c
hang
e in
sha
pe--
[rig
id a
nd h
ard
mat
elia
l]
[the
met
allu
rgy
of h
ardf
acin
g m
ater
ials
]
Set
of R
eal N
umbe
rs P
ositi
ve R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
, i.e
.. U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts--
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
Line
arR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts.
and
gra
phs
Sca
le d
raw
ings
; flo
or p
lans
/ blu
eprin
ts
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
ptsR
atio
and
pro
port
ion
. [ra
tio o
f har
dnes
s of
app
licat
ion
to h
ardn
ess
of p
aren
tm
etal
]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
EX
AM
PLE
S
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
for
mat
eria
ls n
eede
d
Fol
low
-ora
l ins
truc
tions
App
rais
e w
ork
SK
ILLS
/CO
NC
EP
TS
term
inol
ogy,
Log
ic. G
estu
re, U
sage
Com
preh
ensi
on. D
etai
l. P
ropo
sals
. Des
crip
tion.
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy:
Usa
ge:
Dis
crim
inat
e fa
cts,
Log
ic. C
once
ntra
tion,
Not
e ta
king
usua
l ana
lysi
s, L
ogic
, Dis
crim
inat
ion.
Det
ail,
Rec
ogni
tion
of s
ymbo
ls, C
odes
,'ete
.
Siz
e. S
hape
. Tem
pera
ture
23
(TASK STATEMENT)
1-1,
SO
FT S
OL
DE
Rrt
A
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TSACTED UPON
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
Oxy
Ace
tyle
ne E
quip
men
tM
ater
ial t
o be
Sol
t Sol
dere
dfix
ture
s. c
hill
bloc
k et
c. a
s re
quire
dS
olde
r m
ater
ial a
s re
quire
dP
rope
r flu
xS
. T. a
s re
quire
d
Det
erm
ine
job
requ
irem
ents
Det
erm
ine
proc
edur
eS
elec
t pro
per
sold
er m
ater
ial
Sel
ect p
rope
r flu
x-S
elec
t tip
siz
e.
Pos
ition
wor
k to
pro
tect
com
pone
nts
from
hea
tC
ompl
ete
oper
atio
n fo
llow
ing
prop
er p
roce
dure
Re
ler
to In
dex
unde
r S
ale
Pra
ctic
eX
Saf
er%
Pre
caut
ions
for
Han
d I o
ols
[Item
s I t
hru
Id]
XIX
OX
Y-A
cet.s
lene
Wel
ding
[Item
s I t
hru
35]
..
DE
CIS
ION
S
(111
.7rm
ine
CU
ES
..E
RR
OR
SIII
M
job
requ
irem
ent
Det
erm
ine
proc
edur
eS
elec
t sol
derin
g m
ater
ial
Sel
ect f
lux
Eva
luat
e fin
ishe
d op
erat
ion
by v
isua
l ins
pect
ion
o
.
Job
requ
irem
ents
Eas
e of
app
licat
ion
Typ
e of
met
al b
eing
sol
dere
dT
ype
of m
etal
bei
ng s
olde
red
Am
ount
of h
eat r
equi
red
Gen
eral
app
eara
nce,
com
plet
e bo
nd, n
eat a
nd c
lean
-
"
Will
not
mee
t job
req
uire
men
tsP
oor
bond
.
.
.
(TA
SK
ST
AT
EM
EN
T)
I-L
SO
FT
SO
LDE
R
SC
IEN
CE
......
....
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge--
-[us
e of
Sta
ndar
d to
ols]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
[fini
shed
pro
duct
]T
rans
fer
of e
nerg
y fr
om o
ne fo
rm to
ano
ther
[che
mic
al r
eact
ion
fluxe
s]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
--
{effe
ct a
djac
ent m
ater
ial]
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
[fin
ishe
d bo
nd]
[Phy
sica
l & c
hem
ical
pro
pert
ies
of s
olde
ring
allo
ys a
nd fl
uxes
]
,.. .
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
, i.e
., U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
Line
arR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
/floo
r pl
ans/
blue
prin
ts
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
ptsR
atio
and
pro
port
ion
Bas
ic G
eom
etry
Ski
lls a
nd C
once
ptsC
ongr
uenc
e
.
CO
MM
UN
ICA
TIO
NS
,
(
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
g,
.R
eadi
ng.
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
.
.
Mak
e or
e re
quis
ition
for
mat
eria
ls
Itite
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
,
Mak
e w
ritte
n re
tinis
ition
for
mat
eria
ls n
eede
d
Fol
low
ora
l ins
truc
tions
.
App
rais
e w
ork
Ter
min
olog
y, L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on, D
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
..-
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc.
Siz
e, S
hape
, Tem
pera
ture
.. ,
25
le
a
iDUTY II. ELECTRIC ARC WELDING
A. *Set up equipment for electric arc weldingB. Arc weld mild steelC. Arc weld pipeD. Arc weld stainless steelE. Arc weld cast ironF. HardfaceG. Cut metals
27
..;
42
NG
IPA
SE
T U
P A
ND
AD
JUST
EQ
UIP
ME
NT
FO
R E
LE
CT
RIC
(TA
SK
ST
AT
EM
EN
T)
AR
C W
EL
DIN
Gfr
7
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
7
PE
RF
OF
IMA
NC
E K
NO
WLE
DG
E
,
SA
FE
TY
- H
AZ
AR
D
AC
-DC
Arc
Wel
ding
equ
ipm
ent,
Cab
les
and
fittin
gs-
S. T
.re
quire
d
-.,
,
.
*..
.D
eter
min
e op
erat
ion
requ
irem
ents
Con
nect
cor
rect
pow
er le
ad c
onne
ctio
nC
onne
ct c
orre
ct e
lect
rode
and
gro
und
cabl
e co
nnec
tions
Insp
ect c
urre
nt a
nd p
olar
ity c
ontr
ols
Insp
ect p
erfo
rman
ce o
f wel
ding
mac
hine
.
°
.
Rci
er to
Inde
x un
der
Saf
e P
ract
ice:
XV
IIIE
lect
ric A
rc W
eldi
ng[It
ems
I thr
u 28
],.
.
.-
.
.
,D
EC
ISIO
NS
.
CU
ES
ER
RO
RS
'.
Det
erm
ine
amou
nt o
f set
-up
nece
ssar
yO
pera
tion
requ
irem
ent
Det
erm
ine
corr
ect p
ower
sou
rce
and
lead
sO
pera
tion
requ
irem
ent ,
-D
eter
min
e co
rrec
t ele
ctro
de a
nd g
roun
d ca
ble
conn
ectio
nsO
pera
tion
requ
irem
ent
Det
erm
ine
corr
ect c
urre
nt a
nd p
olar
ity s
etti
;.gs
Ele
ctro
de to
be
used
Eva
luat
e co
mpl
eted
set
-up
Res
ults
.
,
I
0
Inco
mpl
ete
set-
upM
achi
ne w
ill n
ot fu
nctio
n pr
oper
lyP
oor,
per
form
ance
Poo
r pe
rfor
man
ce.
-
IPA
Sr.
' UP
AnD
AuJ
CS1
rA
tUlk
mE
N1
iv u
R 1
,14r
,CT
Iut.
(TA
SKS
TA
TE
ME
NT
)A
RC
WE
LD
ING
,
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
.
-
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se o
f sta
ndar
d to
ols]
Tra
nsfe
r of
ene
rgy
from
one
form
to a
noth
er[e
lect
rical
ene
rgy
to h
eat]
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
nt[c
orre
ct c
able
siz
e]
.
. .
..
.
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
.D
ivis
ion
algo
rithm
Ord
er o
f ope
ratio
ns, i
.e.,
Use
of p
aren
thes
es in
sim
plify
ing
arith
met
icex
pres
sion
s.B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
- -f
Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
Line
arR
eadi
ngan
d in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
/flo
or p
lans
/blu
eprin
tsi
.
..
.C
OM
MU
NIC
AT
ION
S_
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
S.
SK
ILLS
/CO
NC
EP
TS
Spe
akin
g.
Rea
ding
Wnt
ing
List
enin
g
Vie
win
g
Tou
chin
g
.
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Rea
d an
d fo
llow
writ
ten
inst
ruct
ions
for
set-
up
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
-
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
. Ter
min
olog
y, L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on, D
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc.
Siz
e, S
hape
,'Tem
pera
ture
29
(TA
SK
ST
AT
EM
EN
T)
II-B
AR
C W
EL
D M
ILD
ST
EE
Lnq
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
,,
PE
RF
OR
MA
NC
E ,K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
AC
DC
Arc
Wel
ding
equ
ipm
ent
M. S
. Mat
eria
lW
eldi
ng E
lect
rode
s
S. T
. as
requ
ired
'
I
Det
ertn
tne
joih
t des
'S
elec
t ele
ctro
de ty
pe. s
ize
Det
erm
ine
wel
d po
sitio
nS
elec
t pol
arity
Adj
ust c
urre
ntS
trik
e A
rc a
nd c
ornp
l to
acco
rdan
ce to
prop
1r 1 I t I I.I
3
,w
eld
inpr
oced
ure
'
Ret
er to
Inde
x un
der
Sat
e P
ract
ice.
\ VIII
Ele
ctric
Arc
Wel
ding
[Item
s I t
hru
28]
-
DE
CIS
ION
S'
-
IJo
b re
ouire
men
tsP
hysi
cal &
che
mis
try,
cur
rent
Eas
e of
app
licat
ion
Ele
ctro
de r
equi
rem
ent
For
pen
etra
tion
Goo
d ap
pear
ance
, pen
etra
tion
CU
ES
'
.E
RR
OR
S
Det
erm
ine
join
t des
ign
Sel
ect e
lect
rode
siz
eD
eter
min
e w
eld
posi
tion
Sel
ect p
olar
ityA
djus
t am
pera
geE
valu
ate
finis
hed
wel
d by
vis
ual i
nspe
ctio
n
'
,,,
requ
irem
ents
info
rmity
.
..
Will
not
mee
t job
spe
cific
atio
nsP
oor
wel
d qu
ality
Diff
icul
t to
perf
orm
Poo
r w
eld
qual
ityP
oor
wel
d qu
ality
Impu
ritie
s. p
oor
pene
trat
ion.
etc
.
.. -
....
/,
___-
---
(TA
SK
ST
AT
EM
EN
T)
II-B
AR
C W
ELD
MIL
DST
tEL
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se o
f sta
ndar
d to
ols]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
[con
trol
dis
tort
ion]
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
[wel
d]
.-
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nale
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
'
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hm,
Ord
er o
f ope
ratio
ns, i
.e.,
Use
of p
aren
thes
es in
sim
plify
ing
arith
met
ic e
xpre
ssio
ns.
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts[B
asic
Mea
sure
men
t]M
easu
rem
ent:
Geo
met
ric'L
inea
rR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
/floo
r pl
ans/
blue
prin
ts.
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
ptsR
atio
and
pro
port
ion
[wel
d pr
opor
tiona
te to
par
ent m
etal
]
..
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
,E
XA
MP
LES
SK
ILLS
/CO
NC
EP
TS
Spe
akin
g
Rea
ding
--...
Writ
ing
List
enin
g'
Vie
win
g
,
Tou
chin
g4,
..
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
.
vInt
erpr
et b
luep
rint a
nd w
ritte
n sp
ecifi
catio
ns. S
eek
Info
rmat
ion.
.
4M
ake
writ
ten
requ
isiti
ons
for
mat
eria
ls n
eede
d
Fol
low
ora
l Ins
truc
tions
App
rais
e w
ork
.
.
Ter
min
olog
y, L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
pn,p
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y. In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic. C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n. D
etai
l.,..
aeco
gniti
on o
f sym
bols
, Cod
es, e
tc.
Siz
e, S
hape
, Tem
pera
ture
.
31ti
(TA
SK
ST
AT
EM
EN
T)
II-C
AR
C W
EL
D S
TE
ED
PIP
E
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N
4,
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
AC
DC
Arc
Wel
ding
equ
ipm
ent
S. T
. as
requ
ired
Alig
nmen
t fix
ture
Ste
el P
ipe
Ele
ctro
des
Det
erm
ine
join
t des
ign
'
Det
erm
ine
alig
nmen
t pro
cedu
reD
eter
min
e el
ectr
ode
sue
and
type
Det
erm
ine
,,osi
t.on
Det
erm
ine
poi..
ty s
ettin
gA
djus
t cur
rent
Com
plet
e w
eld
acco
rdin
g to
pro
per
proc
edur
e
,
.
..
I 1
I
Ref
er to
Inde
x un
der
Saf
e P
ract
ice.
XV
IIIE
lect
ric A
rc W
eldi
ng-
[Item
s I t
hru
28]
.
,
,
Y.
AIE
NI
, -D
EC
ISIO
NS
=' 4-
CU
ES
0,
'E
RR
OR
S,
Det
erm
ine
join
t des
ign
Det
erm
ine
alig
nmen
t'pro
cedu
reD
eter
min
e el
ectr
ode
size
and
type
Det
erm
ine
posi
tion
Det
erm
ine
pola
rity
setti
ng.
Adj
ust c
urre
ntA
ppra
ise
finis
hed
wor
k
Job
requ
irem
ents
, spe
cific
atio
nsJo
b re
quire
men
ts, s
peci
ficat
ions
Job
requ
irem
ents
, spe
cific
atio
nsE
ase
of a
pplic
atio
nA
cccr
ding
to e
lect
rode
type
Job
requ
irem
ent
Vis
ual a
ppea
ranc
e, s
peci
ficat
ions
t... -
Lack
of f
usio
n an
d pe
netr
atio
nM
isal
ignm
ent o
f wel
dmen
tP
oor
qual
ity o
f wel
dP
oor
qual
ity o
f wel
d, a
ppea
ranc
eP
oor
qual
ity o
f wel
d. a
urea
ranc
eP
oor
qual
ity o
f wel
d. a
ppea
ranc
e
.,
(TA
SK
ST
AT
EM
EN
T)
111-
C A
RC
Wki
LD S
i r,E
L
SC
IEN
CE
.1
MA
TH
- N
UM
BE
R S
YS
TE
MS
.
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge-f
use
of s
tand
ard
tool
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls-
[cha
nge
in m
ater
ial s
ize]
Mag
netic
fiel
ds o
f for
ce-[
elec
tric
an c
hara
cter
istic
s]T
rans
fer
of e
nerg
y fr
om o
ne fo
rm to
ano
ther
-{E
lect
rical
ene
rgy
to h
eat]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er-{
adja
cent
are
as]
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
nt{c
able
siz
e, e
lect
rode
siz
e]A
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
fect
on
stru
ctur
e an
d st
reng
th o
f mat
eria
ls.
,
'
.
Set
df R
eal N
umbe
rs-P
ositi
ve R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
.
Add
ition
alg
orith
mS
ubtr
actio
n al
gont
hmM
ultip
licat
ion
algo
nthm
Div
isio
n al
gorit
hmO
rder
of O
pera
tions
, i e
., U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
asic
Mea
sure
men
ts S
kills
and
Con
cept
sIn
stru
men
ts-{
Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
Ang
leM
easu
rem
ent:
Non
-geo
met
ric.
'T
empe
ratu
reR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Ba.
tic G
eom
etry
-Ski
lls a
nd C
once
pts
,K
now
ledg
e of
geo
met
ric r
elat
ions
hips
,P
aral
lel
Per
pend
icul
a-.
Det
erm
inat
iot
i and
circ
umfe
renc
e of
circ
les.
Det
erm
inat
ion
of ..
..ea
and
perim
eter
of a
n el
lipse
.D
eter
min
atio
n of
fact
s in
volv
ing
lines
tang
ent t
o ci
rcle
s.
,
CO
MM
UN
ICA
TIO
NS
..,,
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SA
SK
ILLS
/CO
NC
EP
TS
SK
ILLS
/CO
NC
EP
TS
,,S
peak
ing
Rea
ding
Wnt
ing
List
enin
g
Vie
i,ing
Tou
chin
g-
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ials
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mea
sure
and
lay-
out p
ipe
acco
rdin
g to
blu
eprin
t
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
. Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
Ter
min
olog
y, L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on, D
etai
l, P
iopo
sals
, Des
crip
tion,
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis.
Log
ic, D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc
Siz
e, S
hape
, Tem
pera
ture
33
(TA
SK
ST
AT
EM
EN
T)
II-D
AR
C W
EL
D S
TA
INL
ESS
ST
EE
L
TO
OLS
, EQ
UIP
MC
NT
,M
AT
E, R
IALS
,O
BJE
CT
S A
CT
ED
UP
ON
.---
-4.-
---
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
AC
/ DC
Arc
Wel
ding
equ
ipm
ent
Sta
inle
ss S
teel
mat
eria
lS
tain
less
Ste
el e
lect
rode
s
S. T
. as
requ
ired
,
.
,..
A
.
..
Det
erm
ine
join
t des
ign
Sel
ect e
lect
rode
type
/siz
eD
eter
min
e w
eldi
ng p
ositi
onS
elec
t pol
arity
Adj
ust c
urre
ntS
et u
p w
ork,
pro
ceed
with
wel
d,T
echn
ique
use
d co
nsis
tant
with
pro
per
proc
edur
e
, .
4,
_
\
,
. .
`-. .
.
Ref
er to
Inde
x un
der
Saf
e P
ract
ice:
XV
III-
- E
lect
ric A
rc W
eldi
ng -
- {I
tem
s 1
thru
18]
-
_
.
.
.
-
.
1
'. DE
CIS
ION
S.
...-
,
l
.
'
CU
ES
ER
RO
RS
.D
eter
min
e jo
int d
esig
nS
elec
t ele
ctro
de ty
pe/s
ize
Det
erm
ine
wel
d po
sitio
nS
elec
t pol
arity
Adj
ust c
urre
nt1
Set
up
wor
kA
ppra
ise
finis
hed
wel
d by
vis
ual i
nspe
ctio
n
-
.
Jo 3
req
uire
men
tP
hysi
cal &
che
mic
al p
rope
rty
Eas
e of
app
licat
ion
Ele
ctro
de r
equi
rem
ent
-i.
For
pro
per
pene
trat
ion
etc.
Eas
e of
ope
ratio
n..
App
eara
nce,
uni
form
ity p
enet
ratio
n
'
.D
oes
not m
eet r
equi
rem
ent
Doe
s no
t mee
t req
uire
men
tJo
b di
fficu
lt to
per
form
Poo
r w
eld
qual
ityP
oor
wel
d qu
ality
-Jo
b di
fficu
lt to
per
form
Impu
ritie
s in
wel
d, p
oor
pene
trat
ior.
etc
.
. .
.
r (TA
SK S
TA
TE
ME
NT
)11
-1)
AR
C W
ILD
S'i
AiN
LL
saST
LA
..a.
SC
IEN
CE
'AM
AT
HN
UM
BE
R S
YS
TE
MS
/S
impl
e m
achi
nes
used
to g
am
echa
nica
l adv
anta
ge[s
tand
ard
tool
s]E
ffect
of h
eatin
g an
d co
olin
g .n
exp
ansi
on o
f mat
eria
ls[c
ontr
ol d
isto
rtio
n]A
rran
gem
ent o
f mol
ecul
es, a
t.s
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
at'a
ls[p
hysi
cal a
nd c
hem
ical
cha
ra te
ristic
s of
ele
ctro
des,
elec
trod
e co
atin
gs a
nd th
eir
fu,c
tion]
.
,
.
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hm-
Ord
er o
f ope
ratio
ns, i
.e.,
Use
of p
aren
thes
es in
sim
plify
ing
arith
met
ic e
xpre
ssio
nsB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
.
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
..
Line
arR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
/floo
r pl
ans/
blue
prin
ts
,-.
.
CO
MM
UN
ICA
TIO
NS
PER
FOR
MA
NC
E M
OD
ES
-E
XA
MP
LES
SK
ILLS
/CO
NC
EP
TS
I
Spe
akin
g
Rea
ding
.
Writ
ing
List
enin
g-
Vie
win
g
Tou
chin
g
M r
ora
l req
uisi
tion
for
mat
eria
ls.
Into
et b
luep
rint a
nd w
ritte
n sp
ecifi
catio
ns
Mak
e w
ri en
req
uisi
tions
for
mat
eria
ls n
eede
d.
Fol
low
ora
lst
ruct
ions
Per
form
ope
rafo
napp
rais
e fin
ishe
d w
ork
,..
,
Ter
min
olog
y, L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on, D
etai
l; P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y; In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc.
Siz
e, S
hape
, Tem
pera
ture
35
...
21.4
.
(TA
SK
ST
AT
EM
EN
T)
II-E
AR
C W
EL
D C
AST
IR
ON
SA
FE
TY
- H
AZ
AR
DI
IOB
JEC
TS
. .
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
AC
TE
D U
PO
N
IIIM
INN
EM
IIIIIM
IIMY
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
I
AC
DC
Arc
Wel
ding
equ
ipm
ent
S T
as
requ
ired
Grin
der
Cas
t, Ir
on m
ater
ial
Ele
ctro
des
Det
erm
ine
join
t des
ign
Det
erm
ine
prep
arat
ion
need
edS
elec
t ele
ctro
desi
ze a
nd ty
peD
eter
min
e po
sitio
nD
eter
min
e po
larit
y se
tting
Adj
ust c
urre
ntD
eter
min
e pr
ehea
tipos
thea
t nee
ded
Com
plet
e w
eld,
usi
ng p
rope
r pr
oced
ure
\R
efer
to In
dex
unde
r S
afe
Pra
ctic
eX
VIII
Ele
ctric
Arc
Wel
ding
[Item
s I t
hru
28]
\
-.
.
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
join
t des
ign
Det
erm
ine
prep
arat
ion
need
edS
elec
t ele
ctro
de-
-siz
e an
d ty
pe,
Det
erm
ine
posi
tion
Det
erm
ine
pola
rity
setti
ngA
djus
t cur
rent
Det
erm
ine
preh
eat:
post
heat
nee
ded
App
rais
e fin
ishe
d w
ork
Job
requ
irem
ent
Con
ditio
n of
met
al-d
irt, r
ust,
etc.
Job
requ
irem
ent
Job
requ
irem
ent
Ele
ctro
de r
equi
rem
ent
Job
requ
irem
ent
Job
requ
irem
ent
-V
isua
l app
eara
nce
and
spec
ifica
tions
.,
Mat
eria
l was
teP
oros
ity--
poor
qua
lity
Wro
ng p
hysi
cal p
rope
rtie
sP
oor
bead
sha
peP
oorq
ualit
y of
wel
d m
etal
Poo
r qu
ality
of w
eld
met
alP
ossi
ble
crac
king
4
(TA
SK
ST
AT
EM
EN
T.
IIE
AR
C W
E D
CA
ST I
RO
,..
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge--
[sta
ndar
d to
ols]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
[cra
cks]
Mag
netic
fiel
ds o
f for
ce[b
ehav
ior
of e
lect
ric a
rc e
ffect
ed]
Tra
nsfe
r of
ene
rgy
from
one
form
to a
noth
er[e
lect
ric e
nerg
y to
hea
t]T
rans
fer
of h
eat f
rom
ony
bc,
dy to
ano
ther
--
[adj
acen
t are
as]
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
nt--
[cab
le s
ize,
ele
ctro
de s
ize]
-,
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
-[w
eld
]R
esis
tanc
e of
mat
eria
ls to
cha
nge
in s
hape
[cas
t iro
n ca
nnot
be
bent
or
shap
ed]
,
-
,
r
..
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hm.
Ord
er o
f ope
ratio
ns, i
.e.,
Use
of p
aren
thes
es n
i sim
plify
ing
arith
met
ic e
xpre
ssio
nsB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Mea
sure
men
t]M
easu
rem
ent:
Geo
met
ricLi
near
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sS
cale
dra
-win
gs/fl
oor
plan
s/bl
uepr
ints
Bas
ic A
nthm
etic
Ski
lls a
nd C
once
ptsR
ano
and
prop
ortio
n[r
atio
of e
xpan
sion
and
con
trac
tion
to h
eatin
g an
d co
olin
g.] N
i.
.
.
CO
MM
UN
ICA
TIO
NS
..
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g-
Tou
chin
g
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ials
Rea
d pr
ehea
t and
pos
thea
t tem
pera
ture
s as
not
ed in
writ
ten
oral
inst
ruct
ions
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
/
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tion'
s
App
rais
e w
ork
Ter
min
olog
y, L
ogic
, Ges
ture
, Usa
gc
Com
preh
ensi
on, D
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y, In
stru
ctio
n
Ske
tch.
Des
crip
tion.
Log
ic, T
erm
inol
ogy.
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc.
Siz
e, S
hape
, Tem
pera
ture
37
(TA
SK
ST
AT
EM
EN
T)
11-F
HA
RD
FAC
E
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
AC
DC
Arc
Wel
ding
equ
ipm
ent
S T
as
requ
ired
Grin
der
Ste
el o
r st
eel a
lloy
mat
eria
lH
ardf
acin
g el
ectr
odes
Det
erm
ine
join
t des
ign
Det
erm
ine
prep
arat
ion
need
edS
elec
t ele
ctro
de s
ize
and
type
Det
erm
ine
posi
tion
Det
erm
ine
pola
rity
setti
ngA
djus
t cur
rent
Com
plet
e ha
rafa
cing
ope
ratio
n ac
cord
ing
to p
roce
dure
Ref
er to
Inde
x un
der
Saf
e P
ract
ice
XV
IIIE
lect
ric A
rc W
eldi
ng[It
ems
I thr
u 28
]
DE
CIS
ION
S
",
CU
ES
51. ER
RO
RS
Det
erm
ine
join
t des
ign
Det
erm
ine
prep
arat
ions
nee
ded
Sel
ect e
lect
rode
size
and
type
Det
erm
ine
posi
tion
Det
erm
ine
pola
rity
setti
ngA
djus
t cur
rent
App
rais
e fin
ishe
d w
ork
Job
requ
irem
ent
Job
requ
irem
ent
Ele
ctro
de u
sed
acco
rdin
g to
spe
cific
atio
nsE
ase
of a
pplic
atio
n..,
_.
Det
erm
ined
by
elec
trod
e ty
peJo
b re
quire
men
tV
isua
l'app
eara
nce
and
spec
ifica
tion
Mat
eria
l was
te.
Poo
r qu
ality
poor
adh
esio
nM
ater
ial w
aste
--po
or q
ualit
yP
oor
shap
e of
bea
dP
oor
qual
ity'
Poo
r ad
hesi
on e
ffect
s ph
ysic
al p
orpe
rtie
sI
Poo
r ap
pear
ance
too
soft
(TA
SK
ST
AT
EM
EN
T)
H-F
HA
RD
F C
SC
IEN
CE
. MA
TH
- N
UM
BE
RS
YS
TE
MS
0
.
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se o
f sta
ndar
d to
ols]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
[cra
cks]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
eria
djac
ut a
reas
]A
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
fect
on
stru
ctur
e, a
nd s
tren
gth
of m
ater
ials
[wel
d]R
esis
tanc
e of
mat
eria
ls to
cha
nge
in s
hape
frig
id a
ncta
rd]
.
.
Set
of R
eal N
umbe
rs-
Pos
itne
Rat
iona
lsF
unda
men
tal O
pera
tions
(C
alcu
latio
n).
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
, i.e
., U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sln
stru
men
ts [B
asic
Mea
sure
men
t].
Mea
sure
men
t: G
eom
etric
Line
arR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
/ flo
or p
lans
/blu
eprin
ts
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
ptsR
atio
and
pro
prot
ion
[com
paris
on o
f cos
t of h
ardf
acin
g to
cos
t of n
ew p
an]
'.
CO
MM
UN
ICA
TIO
NS
.I
l
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S.
1
Spe
akin
g
Rea
ding
.
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
.
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ials
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ial-.
nee
ded
Fol
low
ora
l ins
truc
tions
'App
rais
e w
ork
Ter
min
olog
y, L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on, D
etai
l; P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
Crip
tion,
Log
ic, T
erm
inol
ogy,
. Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic. D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc
Sin
, Sha
pe, T
empe
ratu
re
39'4
(TA
SK
ST
AT
EM
EN
T)
II-G
CU
T M
ET
ALS
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
HA
ZA
RD
,
AC
DC
Arc
Wel
ding
equ
ipm
ent
.
Det
erm
ine
job
requ
irem
ents
Rel
er to
Inde
x un
cle.
Sal
e P
ract
ice
Sel
ect e
lect
rode
type
siz
eX
VIII
Ele
ctric
Arc
Wel
ding
[Item
s I t
hru
2g)
Met
al to
be
cut
layo
ut m
etal
usi
ng p
rope
r m
arki
ng to
ol.
Cut
ting
Ele
ctro
des
Adj
ust c
urre
nt.
Sta
ndar
d to
ols
as r
equi
red
Str
ike
arc.
com
plet
e cu
tting
ope
ratio
nac
cord
ing
to p
rope
r pr
oced
ure
Sim
mon
s,'
-
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
job
requ
irem
ents
Job
requ
irem
ents
Will
not
mee
t job
req
uire
men
ts
Sel
ect e
lect
rode
type
siz
eT
ype
and
thic
knes
s m
etal
to b
e cu
tP
oor.
err
atic
, inc
ompl
ete
cut
Adj
ust c
urre
ntry
pean
d th
ickn
ess
met
al to
be
cut
Poo
r;Ir
ratic
. Inc
ompl
ete
Cut
Eva
luat
e fin
ishe
dU
nifo
rmity
, pro
per
dim
ensi
on, n
eat,
etc.
Poo
r, m
ane.
inco
mpl
ete
cut
cut b
y vi
sual
insp
ectio
ni i
.
..
..
(TA
SK
ST
AT
EM
EN
T)
I
_S
CIE
NC
EM
AT
H-
NU
MB
ER
SY
ST
EM
S
..;.
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge {
use
stan
dard
tool
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls {
Dis
tort
ion]
Tra
nsfe
r to
ene
rgy
from
one
form
to a
noth
er -
- [e
lect
rical
ene
rgy
conv
erte
d to
hea
t]A
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
fect
on
stru
ctur
e an
d st
reng
th o
f mat
eria
lspe
at e
ffect
ed z
one]
[Phy
sica
l and
che
mic
al c
hara
cter
istic
s of
ele
ctro
des.
elec
trod
e co
atin
gs a
nd th
eir
func
tion)
.
Set
of R
eal N
umbe
rs -
- P
ositi
ve R
atio
nals
,Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
, i.e
., U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts[B
asic
Mea
sure
men
t].
Mea
sure
men
t: G
eom
etric
Line
arR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
/floo
r pl
ans
/blu
eprin
ts
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
g
Rea
ding
Writ
ing
'
List
enin
g
Vie
win
gr
Tou
chin
g
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Intir
pret
blu
eprin
t and
writ
ten
spec
ifica
tions
Lay-
out j
ob a
ccor
ding
to b
luep
rint,
sket
ch, o
r w
ritte
nin
stru
ctio
ns
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
Ter
min
olog
y, L
ogic
. Ges
ture
, Usa
ge
Com
preh
ensi
on, D
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y. In
stru
ctio
n
Ske
tch,
Des
crip
tion.
Log
ic. T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts.
Log
ic, C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
. Cod
es. e
tc.
Siz
e, S
hape
, Tem
pera
ture
41
50
%
C
DUTY III. TUNGSTEN INERT-GAS ARC WELDING
A. Set up Tungsten Inert-Gas welding equipmentB. TIG weld mild steelC. TIG weld pipeD. TIG weld. stainless steelE. TIG weld aluminumF. TIG, weld cast ironG. Hardface
143
4
(TA
SK
ST
AT
EM
EN
T)
Ill-
A S
ET
UP
TU
NG
STE
N-I
NE
RT
-GA
S`W
EL
DIN
GE
QU
IPM
EN
T
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
AC
; DC
Arc
Wel
ding
Equ
ipm
ent w
ith H
i-fre
quen
cy u
nit.
Det
erm
ine
oper
atio
n re
quire
men
tR
ef r
to In
dex
unde
r S
afe
Pra
ctic
e:
Cab
les
and
fittin
gsD
eter
min
e po
wer
lead
con
nect
ion
VIII
-- E
lect
ric A
rc W
eldi
ng--
-[Ite
ms
I thr
u28
1
TIG
Tor
ch a
ssem
bly
Det
erm
ine
elec
trod
e an
d gr
ound
cab
le c
onne
ctio
n
Tun
gste
n el
ectr
odes
Det
erm
ine
wat
er s
uppl
y co
nnec
tions
Iner
t gas
sup
pl)
Det
erm
ine
flow
met
er c
onne
ctio
ns
. S. T
. as
requ
ired
Det
erm
ine
torc
h as
sem
bly
conn
ectio
nsIn
spec
t all
cont
rols
.
Eva
luat
e co
mpl
eted
set
-up.
_
,.
.
,
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
amou
nt o
f set
-up
nece
ssar
yJo
b re
quire
men
tsC
orre
ct p
lace
men
t of p
ower
lead
Con
nect
acc
ordi
ng to
dire
ctio
nsW
rong
roa
ttion
,
Cor
rect
ele
ctro
de a
nd g
roun
d ca
ble
conn
ectio
nsC
onne
ct a
ccor
ding
to d
irect
ions
Wro
ng p
olar
ity p
ossi
ble
Cor
rect
wat
er s
uppl
y co
nnec
tion
Am
ple
supp
lyO
verh
eatin
g
Cor
rect
flow
met
er c
onne
ctio
nsS
et-u
p re
quire
men
tLe
aks
wel
d co
ntam
inat
ion
Cor
rect
torc
h as
sem
bly
conn
ectio
nS
et-u
p re
quire
men
tLe
aks
wel
d co
ntam
inat
ion
Cor
rect
set
ting
and
func
tion
of c
ontr
ols
Set
-up
requ
irem
ent
Leak
s w
eld
cont
amin
atio
n
Eva
luat
e co
mpl
eted
set
-up
All
phas
es w
orki
ng
.
..
(TA
SK
.ST
AT
EM
EN
T)
111-
A S
ET
UP
TU
NG
STE
N-I
NE
RT
-GA
S W
EL
DIN
G E
QU
IPM
EN
T
SC
IEN
CE
.111
Ipm
lIll
MA
TH
- N
UM
BE
R S
YS
TE
MS
Inde
stru
ctib
ility
of e
nerg
y an
d m
atte
r[no
n-co
nsum
able
ele
ctro
de]
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se o
f Sta
ndar
d T
ools
]E
ffect
of h
eatin
g an
d co
olin
g on
sta
te o
f mat
ter[
chan
ges
poss
ible
phy
sica
l met
allu
rgy]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er {
Hea
t tre
atin
g]R
esis
tanc
e of
mat
eria
ls to
flow
of e
lect
rical
cur
rent
[cab
le s
ize,
Ele
ctro
de s
ize]
Rel
atio
nshi
p of
forc
e to
dis
tort
ion
in a
n el
astic
bod
y[F
orgi
ng a
nd S
hapi
ng]
Arr
ange
men
t of m
olec
ules
, ato
ms
and
tons
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
--
{Wel
ds a
nd M
etal
s]F
luid
s un
der
pres
sure
[iner
t gas
es a
nd th
eir
func
tion]
Phy
sica
l cha
ract
eris
tics
of in
ert g
ases
and
thei
r fu
nctio
n
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIns
trum
ents
[rea
d ga
uge
poun
ds p
er s
quar
e In
ch, c
ubic
feet
per
hou
r]
U./
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
EX
AM
PLE
S
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ials
Rea
d an
d fo
llow
writ
ten
inst
ruct
ions
for
set-
up
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
SKI
LL
S /C
ON
CE
PTS
Ter
min
olog
y. L
ogic
. Ges
ture
. Usa
ge
Com
preh
ensi
on. D
etai
l. P
ropo
sals
. Des
crip
tion.
Ter
min
olog
y. In
stru
ctio
n
Ske
tch,
Des
crip
tion.
Log
ic, T
erm
inol
ogy.
Usa
ge
,Dis
crim
inat
e fa
cts,
Log
ic. C
once
ntra
tion.
Not
e ta
king
Vis
ual a
naly
sis.
Log
ic. D
iscr
imin
atio
n, D
etai
l.R
ecog
nitio
n of
sym
bols
. Cod
es. e
tc.
Siz
e, S
hape
, Tem
pera
ture
45t-
-%--
r..1
(TA
SK
ST
AT
EM
EN
T)
III
-B_
TIG
WE
LD
MIL
D S
TE
EL
.144
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
AC
:DC
Arc
Wel
ding
Equ
ipm
entH
i-fre
quen
cy c
apab
ility
Det
erm
ine
join
t des
ign
Ref
er to
Inde
x tin
der
Saf
e P
ract
ice:
Flo
w M
eter
Reg
ulat
orS
elec
t ele
ctro
de s
ite-
XV
IIIE
lect
ric A
rc W
eldi
ng[It
ems
I thr
u 28
]T
IG W
eldi
ng T
orch
Det
erm
ine
wel
d po
sitio
nT
ungs
ten
Ele
ctro
des
Sel
ect p
olar
ity.
Iner
t Gas
Sup
ply
Adj
ust c
urre
ntM
. S. M
ater
ial
Adj
ust i
nert
-gas
flow
M. S
. Fill
er R
odS
et a
nd a
djus
t hi-f
requ
ency
S T
. as
requ
ired
Set
up
wor
k, c
ompl
ete
wel
d ac
cord
ing
to p
rope
r pr
oced
ure
6
...
.
e
DE
CIS
ION
SC
UE
SE
RR
OR
S,
Det
erm
ine
join
t des
ign
Job
requ
irem
ent o
r sp
ecs
Doe
s no
t mee
t req
uire
men
tS
elec
tele
ctro
de-s
ize
Cur
rent
req
uire
men
tsIm
prop
er A
rc c
hara
cter
istic
s
Det
erm
ine
posi
tion
Eas
e of
app
licat
ion
Poo
r w
eld
qual
ityA
djus
t cur
rent
Pro
per
pene
trat
ion
Poo
r w
eld
qual
ityA
djus
t gas
flow
Pro
per
shie
ldin
gP
oor
wel
d qu
ality
Set
and
adj
ust h
i-fre
quen
cyS
park
inte
nsity
, mod
e, e
tcE
lect
rode
con
tam
inat
ion
App
rais
e fin
ishe
d w
ork
by v
isua
l ins
pect
ion
App
eara
nce,
Pen
etra
tion,
Uni
form
ity, e
tc.
Por
osity
, pen
etra
tion
- cr
acks
, etc
.
_,
.
'.
.
...
-
.r
.
.
(TA
SK S
TA
TE
ME
NT
) II
I-B
TIG
WE
LD
MIL
DST
EE
L
e,
SC
IEN
CE
..1. W
IMI4
11=
1M,
,,
MA
TH
- N
UM
BE
R S
YS
TE
MS
.
0
Sim
ple
mac
hine
s us
ed to
gai
n m
ectiu
nica
l adv
anta
ge. (
use
of s
tand
ard
tool
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls (
Con
trol
dis
trot
ion)
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er[w
ater
coo
led
torc
h]A
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
fect
on
stru
ctur
e an
d st
reng
th o
f mat
eria
ls[s
tren
gth
of w
eld]
[Phy
sica
l cha
ract
eris
tics
of in
ert g
ases
and
thei
r fu
nctio
n][D
iffer
ent t
ypes
of T
ungs
ten
Ele
ctro
des
and
thei
r us
e ki
-fre
quen
cy a
nd it
s fu
nctio
n]
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
Fun
d:-.
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
P.
Sub
trac
tion
algo
rithm
Mul
tiplic
atio
n al
gorit
hmD
iv. o
n al
gorit
hmO
mer
of o
pera
tions
. : e
. U
se o
f p,
.ese
s in
sim
plify
ing
arith
met
ic e
xpre
ssio
nsB
asic
Mea
sure
men
t Ski
lls a
nd C
once
it.,
Inst
rum
ents
[Ba
...lc
Mea
sure
men
t]M
easu
rem
ent:
Gi o
met
ricLi
near
Rea
ding
and
ini-J
pret
ing
tabl
es, c
hart
s, a
nd g
raph
sS
cale
dra
win
gs/ f
loor
pla
ns/ b
luep
rints
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
ptsR
atio
and
pro
port
ion
[Wel
dmen
t pro
port
iona
l to
pare
nt m
etal
]
.
CO
MM
UN
ICA
TIO
NS
..
PE
RF
OR
MA
NC
E M
OD
ES
, EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
,_In
terp
ret b
luep
r nt
or
writ
ten
spec
ifica
tions
,
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
'
Ter
min
olog
y. L
ogic
. Ges
ture
. Usa
ge
Com
preh
ensi
on. O
ctal
!. P
ropo
sals
. Des
crip
tion,
fr.r
mi.l
olog
y. In
stru
ctio
n.
Ske
tch.
Des
crip
tion.
I og
le.T
erm
inol
ogi.
Usa
ge,
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
.
Vis
ual a
naly
sis.
Log
ic, D
isci
-adu
latio
n. D
etai
l,R
ecog
nitio
n of
sym
bols
. Cod
es, e
tc.
Siz
e. S
hane
, Tem
pera
ture
..
47
NS
(TA
SK
ST
AT
EM
EN
T)
111-
C T
IGW
EL
D P
IPE
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
I\O
BJE
CT
S A
CT
ED
UP
ON
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E.-
SA
FE
TY
- H
AZ
AR
D
q
A,D
C A
rc W
eldi
ng e
quip
men
t with
Hig
h-fr
eque
ncy
unit.
_
TIE
Tor
ch A
ssem
bly
Tun
gste
n E
lect
rode
Iner
t gas
sup
ply
Alig
ning
\fixt
ure
Pip
e\
Fill
er r
od\
- S
t. T
. as
requ
i ed
\t
' \ \/
N1=
1111
1011
1111
1141
1111
1M'
-
Det
erm
ine
join
t des
ign
Det
erm
ine
alig
nmen
t pro
cedu
reD
eter
min
e el
ectr
ode
size
and
type
pete
nttn
e fil
ler
rod
size
and
type
.D
eter
min
e po
sitio
nD
eter
min
e cu
rren
t set
ting
Det
erm
ine
pola
rity
setti
ngD
eter
min
e ga
s flo
wC
ompl
ete
wel
d ac
cord
ing
to p
rope
r pr
oced
ure
.
Ref
er to
Inde
x un
der
Sol
e P
ract
ice:
XV
IIIE
lect
ric A
rc W
eldi
ng :I
tem
s I t
hru
28]
_
t.
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
join
t des
ign
Det
erm
ine
alig
nmen
t pro
cedu
reS
elec
t ele
ctro
de s
ire -
Ind
type
Sel
ect f
iller
rod
siz
e an
d ty
peD
eter
min
e po
sitio
nS
elec
t cur
rent
set
ting
Sel
ect p
olar
ity s
ettin
gS
et g
as fl
owA
ppra
ise
finis
hed
wor
k
Job
requ
irem
ent o
r sp
ecifi
catio
nJo
b re
quire
men
t or
spec
ifica
tion
Acc
ordi
ng to
par
ent m
etal
Acc
ordi
ng to
par
ent m
etal
ore
effic
ient
-eas
e of
app
licat
ion
Jre
quire
men
t-sp
ecifi
catio
nJo
b eq
uire
men
t-sp
ecifi
catio
nJo
bqu
irem
ent-
spec
ifica
tion
Vis
ual
pear
ance
and
spe
cific
atio
ns4
.
Lack
of f
usio
n an
d pe
netr
atio
nM
isal
ignm
ent o
f wel
dmen
tP
oor
qual
ity o
f wel
dP
oor
qual
ity o
f wel
dP
oor
qual
ity o
f wel
dP
oor
qual
i:y o
f wel
dP
oor
qual
ity o
f'wel
dW
eld
cont
amin
atio
n.
(TA
SK S
TA
TE
ME
NT
)II
IC T
IG W
EL
D P
IPE
-..
.1
.,
,.....
.S
CIE
NC
E.
. TH
- N
UM
BE
R S
YS
TE
MS
--
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge--
[use
of s
tand
ard
too/
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
fmat
eria
ls[e
hang
e in
mat
eria
l sire
]T
rans
fer
of e
nerg
y fo
rm o
ne fo
rm to
ano
ther
[ele
ctric
al e
nerg
y to
hea
t]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[effe
ct o
n ad
jace
nt a
reas
]R
esis
tanc
e of
mat
eria
ls to
flow
of e
lect
rical
cur
rent
[cab
le s
ize,
ele
ctro
de s
ue]
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
--
[str
engt
h of
wel
d][P
hysi
cal c
hara
cter
istic
s of
iner
t gas
es a
nd th
eir
func
tion]
;[T
ungs
ten
elec
trod
estY
pes
Hig
h-fr
eque
ncy
and
its fu
nctio
ns]
,
Set
of R
eal N
umbe
rsP
ositi
ve R
atin
als
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hm,.
.M
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of O
pera
tions
, i.e
., U
se o
f par
enth
es.
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
Bas
ic M
easu
rem
ents
Ski
lls a
nd C
once
pts
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
Ang
leM
easu
rem
ent:
Non
-geo
met
ricT
empe
ratu
reR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Bas
ic G
eom
etry
Ski
lls a
nd C
once
pts
Kno
wle
dge
of g
eom
etric
rel
atio
nshi
psP
aral
lel
Per
pend
icul
arD
eter
min
atio
n of
are
a an
d ci
rcum
fere
nce
of c
ircle
s.D
eter
min
atio
n of
are
a an
d pe
rimet
er o
f an
ellip
se.
Det
erm
inat
ion
of fa
cts
invo
lvin
g lin
es ta
ngen
t to
circ
les.
CO
MM
UN
ICA
TIO
NS
..
/
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
g
Rea
ding
.
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g..
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ials
Int:r
pret
blu
eprin
t and
writ
ten
spec
ifica
ti.U
nsM
easu
re a
nd la
y-ou
t pip
e ac
cord
ing
to b
luep
rint o
r sk
etch
Mae
writ
ten
requ
isiti
ons
for
mat
eria
ls n
eede
d
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
.1
"
Ter
min
olog
y. L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on, D
etai
l, P
ropo
sals
. Des
crip
tion.
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
'Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n, D
etai
l.R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc.
Siz
e, S
hape
. Tem
pera
ture
.
'
49
(TA
SK
ST
AT
EM
EN
T)
TIG
WE
LD S
TA
INLE
SS
ST
EE
Lw
oo...
orT
OO
LS, E
QU
IPM
EN
T, M
AT
ER
IALS
,O
BJE
CT
S A
CT
ED
UP
ON
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
YH
AZ
AR
D
AC
; DC
Arc
Wel
ding
Equ
ipm
cmH
i-fre
quen
cy c
apab
ility
Flo
w M
eter
Reg
ulat
orT
IG W
eldi
ng T
orch
Tun
gste
n E
lect
rode
sIn
ert G
as S
uppl
yS
tain
less
Ste
el M
ater
ial
Sta
inle
ss S
teel
Fill
er R
odS
T. a
s re
quire
d.
X.
Det
erm
ine
join
t des
ign
Sel
ect e
lect
rode
siz
eD
eter
min
e w
eldi
ng p
ositi
onS
elec
t pol
arity
Adj
ust c
urre
ntA
djus
t Ine
rt g
as fl
owS
et a
nd a
djus
t hi-f
requ
ency
Set
up
wor
k, c
ompl
ete
wel
d ac
cord
ing
to p
rope
r pr
oced
ure
Ref
er to
Inde
x un
der
Saf
e P
ract
ice:
XV
IIIE
lect
ric A
rc W
eldi
ng[it
ems
I thr
u 28
)
DE
CIS
ION
S
Det
erm
ine
join
t des
ign
Sel
ect e
lect
rode
siz
eD
eter
min
e w
eld
posi
tioa
Adj
ust c
urre
nt'A
djus
t gas
flow
Set
and
adj
ust h
i-fre
quen
cyA
ppra
ise
finis
hed
wor
k by
vis
ual i
nspe
ctio
n
CU
ES
Job
requ
irem
ents
or
spec
sC
urre
nt r
equi
red
Eas
e of
app
licat
ion
Pro
per
pene
trat
ion
Pro
per
shie
ldin
gS
park
inte
nsity
, mod
e, e
tc.
App
eara
nce,
pen
etra
tion,
etc
.
ER
RO
RS
Doe
s no
t mee
t req
uire
men
tsIm
prop
er a
rc c
hara
cter
istic
sP
oor
wel
d qu
ality
Poo
r w
eld
qual
ityP
oor
wel
d qu
ality
Ele
ctro
de c
onta
min
atio
nP
oros
ity, p
oor
pene
trat
ion,
cra
cks,
etc
.
(TA
SK S
TA
TE
ME
NT
)II
I-D
TIG
WE
LD
ST
AIN
LE
SS S
TE
EL
SC
IEN
CE
MA
TH
NU
MB
ER
SY
ST
EM
S
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se o
f sta
ndar
d to
ols]
Effe
ct o
f hea
ting
and
f ool
ing
on e
xpan
sion
of m
ater
ials
--[c
ontr
olin
g di
stor
tion]
Tra
nsfe
r of
hea
t fro
m (
me
body
to a
noth
er -
- [w
ater
coo
led
torc
h]A
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
fect
on
stru
ctur
e an
d st
reng
th o
f mat
eria
ls[P
hysi
cal c
hara
cter
istic
of i
nert
gas
es a
nd th
eir
func
tion]
(Diff
eren
t typ
es T
ungs
ten
Ele
ctro
des
and
thei
r us
e H
i-fre
quen
cy a
nd it
s fu
nctio
n]W
elda
ble
and
non
- w
elda
ble
stai
nles
s st
eels
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
.F
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
-
Sub
trac
tion
algo
rithm
Mul
tiplic
atio
n al
gorit
hm.
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
, i.e
., U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts -
- [B
asic
Mea
sure
men
t]M
easu
rem
ent.
Geo
met
ricLi
near
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sS
cale
dra
win
gs/fl
oor
plan
s/bl
uepr
ints
Bas
ic A
rithm
etic
Ski
lls a
nd C
once
ptsR
atio
and
pro
port
ion
[Wel
dmen
t pro
port
iona
l to
pare
nt m
etal
] .
S.
CO
MM
UN
ICA
TIO
NS
PE
R F
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
.
.,,,..
.._
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ials
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
,
'
Ter
min
olog
y. L
ogic
, Ges
ture
. Usa
ge
Com
preh
ensi
on. D
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y. In
stru
ctio
n
Ske
tch.
Des
crip
tion,
Log
ic. T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic. C
once
ntra
tion.
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n. D
etai
l.R
ecog
nitio
n of
sym
bols
. Cod
es, e
tc`,
,S
ire. S
hape
. Tem
pera
ture
51
(TA
SK
ST
AT
EM
EN
T)
IIIE
TIC
WE
LD A
LUM
INU
M
FO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
..
.O
BJE
CT
S A
CT
ED
UP
ON
PE
RF
OR
MA
NC
E K
NO
WLE
DG
E
-
SA
FE
TY
- H
AZ
AR
D
,.
AC
: DC
Arc
Wel
ding
Equ
ipm
ent
Hi-f
requ
ency
cap
abili
tyD
eter
min
e jo
int d
esig
nS
elec
t ele
ctro
de s
ue_
Ref
er to
Inde
x un
der
Saf
e P
ract
ice:
XV
IIIE
lect
ric A
rc W
eldi
ng[It
ems
I thr
u 28
j
How
-met
er R
egul
ator
Sel
ect f
iller
type
ksi
ze
TIG
Wel
ding
Tor
chD
eter
min
e w
eldi
ng p
ositi
on_
Tun
gste
n E
lect
rode
sA
djus
t cur
rent
Iner
t Gas
Sup
ply
Adj
ust i
nert
-gas
flow
Alu
min
um M
ater
ial
Set
and
adj
ust h
i-fre
quen
cyA
lum
inum
fille
r R
od.
Set
up
wor
k co
mpl
ete
wel
d ac
cord
ing
Sta
ndar
d to
ols
as r
equi
red
to p
rope
r pr
oced
ure
Det
erm
ine
preh
eat n
eede
d.
C.
..
..
.,
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
erm
ine
join
t des
ign
Job
requ
irem
ent o
r sp
ecs
Will
not
mee
t job
spe
cific
atio
ns
Sel
ect e
lect
rode
siz
eC
urre
nt r
equi
red
Impr
oper
arc
cha
ract
eris
tics
Sel
ect f
iller
type
' siz
eJo
b R
equi
rem
ents
'P
oor
wel
d qu
ality
Det
erm
ine
wel
d po
sitio
nE
i Se
of a
pplic
atio
nP
oor
wel
d qu
ality
Pre
heat
to r
equi
red
tem
pera
ture
Job
requ
irem
ent
Poo
r fu
sion
appe
aran
ce
Adj
ust c
urre
ntP
rope
r pe
netr
atio
nP
oor
wel
d qu
ality
Adj
ust .
nert
-gas
flow
Pro
per
shie
ldin
gP
oor
wel
d qu
ality
Sal
Adj
ust h
i-fre
quen
cyM
ode,
Spa
rk in
tens
ityE
lect
rode
con
tam
inat
ion
App
rais
e fin
ishe
d w
eld
by v
isua
l ins
pect
ion
App
eara
nce,
pen
etra
tion,
un.
.orm
ity, c
tc.
Por
osity
, poo
r pe
netr
atio
n, c
rack
s, e
tc
.
L.
.
.
.
(TA
SK
ST
AT
EM
EN
T)
III-
E T
IG W
EL
D A
LU
MIN
UM
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
gefu
se o
f st
anda
rd to
ols
Eff
ect o
f he
atin
g an
d co
olin
g on
exp
ansi
on o
f m
ater
ials
--[c
ontr
olin
g di
stor
tion]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er -
-[w
ater
coo
led
torc
h]A
rran
gem
ent o
f m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of
mat
eria
ls[P
hysi
cal c
hara
cter
istic
s of
iner
t gas
es a
nd th
eir
func
tion]
[Dif
fere
nt ty
pes
Tun
gste
n E
lect
rode
s an
d th
eir
use.
][H
i-fr
eque
ncy
and
its f
unct
ion]
Wel
dabl
e an
d no
n-w
elda
ble
alum
inum
allo
ys
Set o
f R
eal N
umbe
rsPo
sitiv
e R
atio
nals
Fund
aMen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Subt
ract
ion
algo
rith
mM
ultip
licIt
tion
algo
rith
mD
ivis
ion
algo
rith
mO
rder
of
oper
atio
ns. i
.e.,
Use
of
pare
nthe
ses
in s
impl
ifyi
ng a
rith
met
ic e
xpre
ssio
ns.
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts[B
asic
Mea
sure
men
t]M
easu
rem
ent:
Geo
met
ric
Lin
ear
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sSc
ale
draw
ings
/flo
or p
lans
/ blu
epri
nts
Bas
ic A
rith
met
ic S
kills
and
Con
cept
sRat
io a
nd p
ropo
rtio
n[W
eld
prop
ortio
nate
to p
aren
t met
al]
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KI L
LS/C
ON
CE
PT
S.
Spea
king
Rea
ding
Wri
ting
Li-
teni
ng
Vie
win
g
Tou
chin
g
.,..
Mak
e or
al r
equi
sitio
ns f
or m
ater
ials
Inte
rpre
t blu
epri
nt a
nd w
ritte
n sp
ecif
icat
ions
Mak
e w
ritte
n re
quis
ition
for
mat
eria
ls n
eede
d
Follo
w o
ral i
nstr
uctio
ns
App
rais
e w
ork
.T
erm
inol
ogy,
Log
ic, G
estu
re, U
sage
Com
preh
ensi
on, D
etai
l, Pr
opos
als.
Des
crip
tion,
Ter
min
olog
y, I
nstr
uctio
n
Sket
ch, D
escr
iptio
n, L
ogic
, Ter
min
olog
y, U
sage
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
\V
isua
l ana
lysi
s, L
ogic
, Dis
crim
inat
ion,
Det
ail,
Rec
ogni
tion
of s
ymbo
ls, C
odes
, etc
.
Size
, Sha
pe,.T
empe
ratu
re
53
G2
(TA
SK
ST
AT
EM
EN
T)
III-
F T
IG W
EL
D C
AST
IR
ON
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,"
OB
JEC
TS
AC
TE
D U
PO
N
.
.
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
7 H
AZ
AR
D
AC
, DC
Arc
Wel
ding
equ
ipm
ent w
ith H
igh-
freq
uenc
yun
itT
IG T
orch
Ass
embl
yT
ungs
teh
Ele
ctro
deIn
ert g
as s
uppl
yF
iller
rod
Grin
der
Cas
t iro
n m
ater
ial
S. T
. as
requ
ireed
Det
erm
ine
join
t des
ign
Det
erm
ine
prep
arat
ion
need
edD
eter
min
e el
ectr
ode-
size
and
type
Det
erm
ine
fille
r ro
d si
ze a
nd ty
peD
eter
min
e ne
cess
ity o
f pre
heat
or
post
heat
Det
erm
ine
posi
tion
Det
erm
ine
pola
rity
Det
erm
ine
curr
ent s
ettin
gD
eter
min
e ga
s flo
wC
ompl
ete
wel
d ac
cord
ing
to p
rope
r pr
oced
ure
t
Ref
er to
Inde
x un
der
Saf
e P
ract
ice:
XV
III -
Ele
ctric
Arc
Wel
ding
- -
[Item
s I t
hru
28]
....
\
.
DE
CIS
ION
SC
UE
SE
RR
OR
S
Det
er' -
le jo
int d
esig
nJo
b re
quire
men
tD
eter
m. :
pre
para
tion
need
edC
ondi
tion
of m
etal
, dirt
y, r
usty
etc
.S
elec
t ele
ctro
de s
ize
and
type
Pro
cedu
re r
equi
rem
ent
-
Sel
ect f
iller
rod
siz
e an
d ty
peP
roce
dure
req
uire
men
t.
Sel
ect p
rehe
at a
nd/o
r po
sthe
atW
eigh
t and
sha
pe o
f cas
ting
Sel
ect p
ositi
onB
ette
r an
d m
ore
effic
ient
res
ults
Set
pol
anty
Job
requ
irem
ent
Mak
e cu
rren
t set
ting
Job
requ
irem
ent
Set
gas
flow
Job
requ
irem
ent
App
rais
e fin
ishe
d w
ork
Vis
ual a
nd s
peci
ficat
ion
.
'
Lack
of f
usio
n an
d pe
netr
atio
nP
oros
ity, p
oor
qual
ity o
f wel
dD
rop
in q
ualit
y of
wel
dP
oros
ity, p
oor
qual
ity o
f wel
dP
ossi
ble
crac
ks in
cas
ting
Poo
r sh
ape
of w
eld
bead
May
not
be
feas
ible
Por
osity
, lac
k of
fusi
ons
bad
bead
sha
peC
onta
min
atio
n of
wel
d an
d el
ectr
ode
Poo
r qu
ality
of f
inis
hed
job
v..
-TA
SK
rxsT
ITIV
R
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
._...
...._
......
......
.___
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se o
f sta
ndar
d to
ols]
.E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[fa
st to
olin
g m
ay c
ause
une
ven
cont
ract
ion,
cra
cks]
Tra
nsfe
r of
ene
rgy
from
one
form
to a
noth
er -
-(el
ectr
ic e
nerg
y to
hea
t]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[effe
ct o
f adj
acen
t are
as]
Res
ista
nce
of m
ater
ials
to fl
ow o
f ele
ctric
al c
urre
nt--
-(ca
ble
sue.
ele
ctro
de s
ize]
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
- -[
wel
d,
Res
ista
nce
of m
ater
ials
to c
hang
e in
sha
pe[c
ast i
ron
cann
ot b
e be
nt o
r sh
aped
][C
hara
cter
istic
s of
iner
t gas
es a
nd fu
nctio
n][T
ypes
of t
ungs
ten
elec
trod
es]
)
[Fun
ctio
n of
hig
h-fr
eque
ncy]
[Fill
er r
ods
used
-cas
t iro
n an
d ni
ckel
]
-S
et o
f Rea
l Num
bers
Pos
itive
Rat
iona
lsF
unda
men
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Mul
tiplic
atio
n al
gorit
hmD
ivis
ion
algo
rithm
Ord
er o
f ope
ratio
ns, i
.e ,
Use
of p
aren
thes
es in
sim
plify
ing
arith
met
ic e
xpre
ssio
nsB
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
(B
asic
Mea
sure
men
t]M
easu
rem
ent:
Geo
met
ricLi
near
Rea
ding
and
inte
rpre
ting
ta.
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
/floo
r pl
ans/
blue
prin
tsB
asic
Mea
sure
men
t Ski
lls a
nd C
once
ptsM
easu
rem
ent.
Non
-geo
met
ricT
empe
ratu
re [C
heck
ing
and
Con
trol
ling]
I
CO
MM
UN
ICA
TIO
NS
PE
R F
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Rea
d pr
ehea
t and
pos
thea
t tem
pera
ture
s as
not
ed in
writ
ten
or o
ral i
nstr
uctio
nsIn
terp
ret b
luep
rint a
nd w
ritte
n sp
ecifi
catio
ns
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
.
Ter
min
olog
y. L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on. D
etai
l, P
ropo
sals
, Des
crip
tion.
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
crip
tion;
Log
ic. T
erm
inol
ogy.
Usa
ge
Dis
crim
inat
e fa
cts.
Log
ic, C
once
ntra
tion.
Not
e ta
king
Vis
ual a
naly
sis,
Log
ic, D
iscr
imin
atio
n. D
etai
l.R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc.
Sae
. Sha
pe. T
empe
ratu
re.
55
C.3
(T (
T S
K S
TA
TE
ME
NT
)1H
-G H
AR
DF
AC
E
T O
LS, E
QU
IPM
EN
T, M
AT
ER
IALS
,0
EC
TS
AC
TE
D U
PO
N
AC
DC
Arc
Wel
ding
equ
ipm
ent w
ith H
igh-
freq
uenc
y un
it.1
IC, T
orch
ass
embl
ytu
ngst
en e
lect
rode
Iner
t gas
sup
ply
Ste
el o
r S
teel
allo
yF
iller
rod
Grin
der
PE
RF
OR
MA
NC
E K
NO
WLE
DG
ES
AF
ET
Y -
HA
ZA
RD
Det
, nin
e jo
int d
esig
nD
eter
min
e pr
epar
atio
n ne
eded
Det
erm
ine
elec
trod
e si
te a
nd ty
peD
eter
min
e fil
ler
rod
site
and
type
Det
erm
ine
posi
tion
Det
erm
ine
curr
ent s
ettin
gD
eter
min
e po
larit
y se
tting
Det
erm
ine
gas
flow
Com
plet
e w
eld
acco
rdin
g to
pro
per
proc
edur
e
Rel
er to
Inde
x un
der
Saf
e P
ract
ice:
XV
IIIE
lect
ric A
rc W
eldi
ng[It
ems
I thr
u 28
1
DE
CIS
ION
S
Det
erm
ine
join
t des
ign
Det
erm
ine
prep
arat
ion
need
edS
elec
t ele
ctro
de s
ize
and
type
Sel
ect f
iller
rod
site
and
type
Det
erm
ine
posi
tion
Sel
ect c
urre
nt s
ettin
gS
elec
t pol
arity
Set
gas
flow
App
rais
e fin
ishe
d jo
b
CU
ES
Job
requ
irem
ent
Job
requ
irem
ents
and
con
ditio
n of
met
alM
etal
thic
knes
sJo
b re
quire
men
tE
ase
of a
pplic
atio
nJo
b re
quire
men
tJo
b re
quire
men
tJo
b re
quire
men
tV
isua
l app
eara
nce
and
spec
ifica
tion
ER
RO
RS
Mat
eria
l was
teP
oor
qual
ity, p
oor
adhe
sion
Poo
r qu
ality
, app
eara
nce
Poo
r qu
ality
'und
ersi
red
phy§
ical
pro
pert
ies
Poo
r sh
ape
of b
ead
Poo
r qu
ality
, dilu
tion
of b
ead
Poo
r qu
ality
, or
not f
easi
ble
Wel
d co
ntam
inat
ions
and
oxi
datio
n
(TA
SK
ST
AT
EM
EN
T)-
1H-G
HA
RD
FA
CE
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge [u
se o
f sta
ndar
d to
ols]
Effe
ct o
f hea
ting
and
cool
ing
on e
xpan
sion
of m
ater
ials
--
[mat
eria
l we.
dis
tort
ion)
Tra
nsfe
r of
ene
rgy
from
one
form
to a
noth
er[e
lect
rical
ene
rgy
to h
eat]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er -
- [a
djac
ent a
reas
]R
esis
tanc
e of
mat
eria
ls to
flow
of e
lect
rical
cur
rent
(cab
le s
ize.
ele
ctro
de s
ize]
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
[wel
d an
d m
ater
ial)
Res
ista
nce
of m
ater
ials
to c
hang
e in
sha
pe--
[rig
id a
nd h
ard
mat
eria
ls]
[The
met
allu
rgy
of h
ardf
acin
g m
ater
ials
][T
he c
hara
cter
istic
s of
iner
t gas
es-f
unct
ion]
----
----
---
Set
of R
eal N
umbe
rsP
ositi
ve R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
.
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
. i.e
.. U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t. G
eom
etric
Line
arR
eadi
ng a
nd in
terp
retin
g ta
bles
. cha
rts,
and
gra
phs
Sca
le d
raw
ings
, flo
or p
lans
/blu
eprin
ts
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
.
EX
AM
PLE
SS
KIL
LS /C
ON
CE
PT
S
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
Inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
,...,
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
%
Ter
min
olog
y. L
ogic
, Ges
ture
, Usa
ge
Com
preh
ensi
on. D
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y. In
stru
ctio
n
Ske
tch.
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts.
Log
ic, C
once
ntra
tion.
Not
e ta
king
Vis
ual a
rialy
sis,
Log
ic. D
iscr
imin
atio
n, D
etai
l.R
ecog
nitio
n of
sym
bols
. Cod
es, e
tc.
Siz
e, S
hape
. Tem
pera
ture
.
.....
57
DUTY IV. METALLIC INERT-GAS ARC WELDING
A. Set up equipment for Metallic Inert-Gas weldingB. MIG weld carbon steelsC. MIG weld pipeD. MIG Weld aluminum
i6
59
44;
(TA
SK
ST
AT
EM
EN
T)
IV-A
SE
T U
P E
QU
IPM
EN
T F
OR
ME
TA
LL
IC I
NE
RT
-GA
SC
.7
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
SA
FE
TY
- H
AZ
AR
D
Con
stan
t Vol
tage
. Dire
ct C
urre
ntW
eldi
ng M
achi
neP
ower
Inpu
t sup
ply
Iner
t Gas
sup
ply
Wire
-fee
d as
sem
bly
and
cont
rols
Wat
er s
uppl
yF
low
met
er r
egul
ator
Gro
und
and
Ele
ctro
de c
able
sM
IG T
orch
Ass
embl
yF
iller
wire
on
reel
Sta
ndar
d T
ools
as
requ
ired
Con
nect
mac
hine
to p
ower
sup
ply,
Atta
ch w
ater
sup
ply
to m
achi
neA
ttach
cab
lesi
o gr
ound
and
torc
hA
ttach
flow
met
er to
iner
t-ga
s su
pply
Atta
ch fi
ller
wire
ree
l to
feed
ass
embl
yA
djus
t wire
feed
and
cur
rent
con
trol
.
Adj
ust s
olta
ge-
Imsp
ect f
or o
pera
tion
proc
edur
e'
.
Ref
er to
Inde
x un
der
Sal
e P
ract
ice
XV
IIIE
lect
ric A
rc W
eldi
ng -
-I It
ems
I dim
28)
.
.,
-
. DE
CIS
ION
SC
UE
S
'
ER
RO
RS
Dam
age
to m
achi
neD
amag
e to
rch
thro
ugh
over
heat
ing
Poo
r co
nnec
tions
! Dam
age
equi
pmen
tP
oor
wel
d qu
ality
Impr
oper
wel
d de
posi
tIm
prop
er w
eld
depo
sit
Impr
oper
wel
d de
posi
t. po
or A
rc c
hara
cter
istic
s
\
1.
Con
nect
mac
hine
to p
ower
sup
ply
Atta
ch w
ater
sup
ply
Atta
ch c
able
s to
gro
und
and
torc
hA
ttach
flow
met
erA
djus
t wire
feed
cur
rent
Adj
ust v
olta
geA
ppra
ise
oper
atio
n by
act
ual t
est u
se
Cur
rent
req
uire
men
ts o
f mac
hine
Nee
ded
to k
eep
torc
h co
olM
ake
posi
tive
and
secu
reT
o co
ntro
l shi
eldi
ng g
asA
mou
nt n
eede
d fo
r op
erat
ion
For
sm
ooth
Arc
Pro
per
wire
feed
, goo
d A
rc c
hara
cter
istic
, goo
d de
posi
t
I
(TA
SK
ST
AT
EM
EN
T)
IV-A
SE
T U
P E
QU
IPM
EN
T F
OR
ME
TA
LLIC
INE
RT
-GA
S
LJS
CIE
NC
E
'Sim
ple
mac
hine
s us
ed ts
, gai
n m
echa
nica
l adv
anta
ge[u
se o
f sta
ndar
d to
ols)
Wor
k in
put,
wor
k ou
tput
, fric
tion
and
effic
ienc
y in
sim
ple
mac
hine
s-
[wire
fed
asse
mbl
y op
erat
ion]
Tra
nsfe
r of
hea
t fro
m o
ne h
ody
to a
noth
er-
[waj
er c
oole
d to
rch]
[Phy
sica
l cha
ract
eris
tic o
f ine
rt g
ases
and
thei
r fu
nctio
n][D
iffer
ent t
ypes
fille
r w
ire]
[Sho
rt-a
rc a
nd S
pray
Arc
][m
etho
ds o
f app
licat
ion]
MA
TH
- N
UM
BE
R S
YS
TE
MS
.
Set
orR
eal N
umbe
rsP
ositi
se R
atio
nale
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
Add
ition
alg
orith
m ''
Suh
trac
tion
algo
rithm
Mul
tiplic
atio
n al
gorit
hmD
ivis
ion
algo
rithm
Ord
er o
f ope
ratio
ns. i
.e ,
Use
of p
aren
thes
es in
sim
plify
ing
arith
met
ic e
xpre
ssio
ns.
Bas
ic M
easu
rem
ent S
kills
and
Con
cept
sIn
stru
men
ts -
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t. G
eom
etric
Line
arR
eadi
ng a
nd in
terp
rctin
g ta
bles
. cha
rts,
and
gra
phs
Sca
le d
raw
ings
floo
r pl
ans/
hlu
eprin
ts
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Spe
akin
g
Rea
ctin
g
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
EX
AM
PLE
S
Mak
e or
al ie
quis
ition
for
mat
eria
ls
Rea
d an
d fo
llow
writ
ten
inst
ruct
ions
!or
set-
up
Mak
e w
ritte
n re
quis
ition
s-fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
SK
I L L
S/C
ON
CE
PT
S
I erm
inol
ogy.
Log
ic. G
estu
re. U
sage
Com
preh
ensi
on. D
etai
l. P
ropo
sals
. Des
crip
tion.
I erm
inol
og).
Inst
ruct
ion
Ske
tch.
Des
crip
tion.
Log
ic. I
erm
inol
ogy.
Usa
ge
Dis
crim
inat
e fa
cts.
I (il
k. C
once
ntra
tion.
Not
e ta
king
Vis
ual a
nals
is. L
ogic
. Dis
crim
inat
ion.
Det
ail.
Rec
ogni
tion
of s
ymho
ls. C
odes
. etc
Sue
. Sha
pe. T
empe
ratu
re
61
(TA
SK
ST
AT
EM
EN
T)
IV-B
MIG
WE
LD
CA
RB
ON
STE
EL
S
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N.
FO
RM
AN
CE
KN
OW
LED
GE proc
edur
e
i \-4
SA
FE
TN
HA
ZA
RD
.i--
--R
efer
to In
dex
unde
r S
afe
Pra
ctic
e.X
VI1
,1E
lect
ric A
rc W
eldi
r c
-- [I
tem
s I t
hru
281
.
.
\
I
.
.
MIG
Wel
ding
Equ
ipm
ent
Iner
t-G
as S
uppl
yF
low
met
er R
egul
ator
MIG
Tor
ch A
ssem
bly
.
Fill
er W
ire S
uppl
y`'
Sta
ndar
d to
ols
as r
equi
red
.
.
.
o
. 'WI!
Det
erm
ine
join
t des
ig, S
elec
t wire
sic
,.D
eter
min
e w
eld
posi
tion
Adj
ust i
nert
gas
flow
Adj
ust w
ire fe
ed a
nd c
urre
nt c
ontr
olV
olta
geS
et-u
p w
ork,
com
plet
e w
eld
acco
r in
g lo
pro
pel-
'.
.
,.
,A
DE
CIS
ION
SC
UE
Ss
,
1
c
I
ER
RO
RS
.
t
Det
erm
ine
join
t des
ign
\S
elec
t wire
siz
eD
eter
min
e w
eldi
ng p
ositi
onA
djus
t gas
flow
Wire
feed
and
cur
rent
con
trol
Adj
ust v
olta
geA
ppra
ise
finis
hed
wel
d 13
) vi
sual
insp
ectio
n
_.
.
...
Job
requ
irem
ents
, spe
cific
atio
nsC
urre
nt r
equi
rem
ents
Eas
e of
app
licat
ion
Pro
per
shie
ldin
gA
mou
nt n
eede
d fo
r op
erat
ion
Sm
ooth
Arc
App
eara
nce,
uni
form
ity b
end,
pen
etra
tion
:.
Will
not
mee
ob
spec
ifica
tions
Poo
r A
rc c
har
teris
tics
Poo
r w
eld
qual
iiP
oor
wel
d qu
ality
Poo
r w
eld
qual
ity \
Poo
r A
rc c
hara
cter
istic
sP
oros
ity, p
enet
ratio
n to
grea
t or
too
little \ \
,
,
-
(TA
SK
;ST
AT
EM
EN
T)
IV-B
MIG
WE
LD C
AR
BO
N S
TE
ELS
SC
IEN
CE
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se 0
1 st
anda
rd to
ols]
Wor
k in
put,
wor
k ou
tput
, fric
tion
and
effic
ienc
y in
sim
ple
mac
hine
s[w
ire fe
ed a
ssem
bly
oper
atio
n]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls--
[con
trol
dis
tort
ion]
Tra
nsfe
r of
hea
t fro
m o
ne b
ody
to a
noth
er [w
ater
coo
led
torc
h]A
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
fect
on
stru
ctur
e an
d st
reng
th o
f mat
eria
ls[P
hysi
cal c
hara
cter
istic
s of
iner
t gas
es a
nd th
eir
func
tions
]
de,
agoc
uou.
awso
msa
......
.ciz
awsa
uvr,
MA
TH
- N
UM
BE
R S
YS
TE
MS
Set
of R
eal N
umbe
rsP
ositi
se R
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cid
cula
tion)
Add
ition
alg
orith
mS
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmC
rder
of o
pera
tions
, t c
.. U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
Line
arR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
rass
ings
floo
r pl
ans:
blu
eprin
ts
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
PE
RF
OR
MA
NC
E M
OD
ES
CO
MM
UN
ICA
TIO
NS
EX
AM
PLE
S
Mak
e or
al r
equi
sitio
ns fo
r n-
Ate
rials
./ite
rprc
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
SK
ILLS
/CO
NC
EP
TS
term
inol
ogy.
Log
ic, G
estu
re, U
sage
Com
preh
ensi
on, D
etai
l, P
ropo
sals
, Des
crip
tion.
Ter
min
olog
y, In
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
Dis
cilm
inat
e fa
cts,
Logi
c, C
once
ntra
tion.
Not
e ta
king
Vis
ual a
naly
sts,
Log
ic, D
iscr
imin
atio
n. D
etai
l,R
ecog
nitio
n of
sym
bols
, Cod
es, e
tc
Site
, Sha
pe, T
empe
ratu
re
(TA
SK
ST
AT
EM
EN
T)
IV-C
MIG
WE
LD
PIP
E
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
N,P
ER
FO
RM
AN
CE
KN
OW
LED
GE
.S
AF
ET
Y -
HA
ZA
RD
.
----
.
MIG
Wel
ding
equ
ipm
ent:
Det
erm
ine
join
t des
ign
Ref
er to
Inde
x un
der
Sat
e P
ract
ice.
Iner
t gas
sup
ply
Det
erm
ine
alig
nmen
t pro
cedu
reX
IIIE
lect
ric A
rc W
eldi
ng--
[Ite
ms
I thr
u 28
1
IF
iller
wire
IA
ligni
ng fi
xtur
eS
elec
t wire
siz
e an
d ty
pe,
Det
erm
ine
posi
tion
S. T
as
requ
ired
Adj
ust v
olta
ge s
ettin
g!
Pip
eS
et w
ire fe
ed s
peed
Sel
ect g
as R
owC
ompl
ete
wel
d ac
cord
ing
to p
rope
r pr
oced
ure
and
spec
ifica
tions
-.
-.
.-
,
,i,,
IMM
O.'
DE
CIS
ION
S.
CU
ES
ER
RO
RS
dete
rmin
ejo
int d
esig
n.
.Jo
b re
quire
men
t-sp
ecifi
catio
nLa
ck o
f fus
ion
and
pene
trat
ion
Det
erm
ine
alig
nmen
t pro
cedu
reJo
b re
quire
men
t and
pro
cedu
reM
is'a
hgnm
ent o
f wel
dmen
tS
lim w
ire s
ize
and
type
Job
requ
irem
ent-
base
met
alP
oor
qual
ityD
eter
min
e po
sitio
nM
ore
effic
ient
-eas
e of
app
licat
ion
Poo
r qu
ality
Adj
ust v
olta
ge s
ettin
gJo
b re
quire
men
tLa
ck o
f fus
ion,
poo
r qu
ality
Set
wire
feed
spe
edC
urre
nt r
equi
rem
e,u,
bea
d si
zeLa
ck o
f fus
ion,
poo
r A
ppea
ranc
eS
et g
as fl
ewJo
b re
quire
men
t, sp
ecifi
catio
nA
ppea
ranc
e-, c
onta
min
atio
nA
ppra
ise
finis
hed
wor
kV
isua
l eva
luat
ion,
spe
cific
atio
ns.
...
..
-
(TA
SK
A
SC
IEN
CE
MA
TH
- N
UM
BE
R S
YS
TE
MS
Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge-
[use
of s
tand
ard
tool
s]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[c
hang
e in
mat
eria
l site
]M
agne
tic fi
elds
of f
orce
--[e
ffect
s el
ectr
ic A
rc c
hara
cter
istic
s]T
rans
fer
of e
nerg
y fr
om o
ne fo
rm to
ano
ther
[ele
ctric
al e
nerg
y to
hea
t]T
rans
fer
of h
eat f
rom
one
bod
y to
ano
ther
[efle
ct o
n ad
jace
nt a
reas
]R
esis
tanc
e of
mat
eria
ls to
flow
of e
lect
rical
cur
rent
[cab
le s
ue, t
ore
site
]A
rran
gem
ent o
f mol
ecul
es, a
tom
s an
d io
ns a
nd th
e ef
ft.ct
on
stru
ctur
e an
d st
reng
th o
f mat
eria
ls--
[wel
d]
Set
of R
eal N
umbe
rsP
ofu
seR
atio
nals
Fun
dam
enta
l Ope
ratio
ns (
Cal
cula
tion)
"A
dditi
on a
lgor
ithm
Sub
trac
tion
algo
rithm
Mul
tiplic
atio
n al
gorit
hmis
ion
algo
rithm
Ord
er o
f Ope
ratio
ns.
Use
of p
aren
thes
es in
sim
plify
ing
arith
met
ic e
xpre
ssio
ns.
Bas
ic M
easu
rem
ents
Ski
lls a
nd C
once
pts
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
MA
eans
guir:
men
t Geo
met
ric
Mea
sure
men
t. N
on-g
bom
etric
Tem
pera
ture
Rea
ding
and
inte
rpre
ting
tabl
es, c
hart
s, a
nd g
raph
sB
asic
Geo
met
ry S
kills
and
Con
cept
sK
now
ledg
e of
geo
met
ric r
elat
ions
hips
.P
aral
lel
Per
pend
icul
arD
eter
min
atio
n of
are
a an
d ci
rcum
fere
nce
of c
ircle
sD
eter
min
atio
n of
are
a an
d pe
riMet
er o
f an
ellip
se.
'D
eter
min
atio
n of
fact
s in
volv
ing
lines
tang
ent t
o ci
rcle
s.
CO
MM
UN
ICA
TIO
NS
PE
RF
OR
MA
NC
E M
OD
ES
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
- V
iew
ing
Tou
chin
g
EX
AM
PLE
S
Mak
e or
al r
equi
sitio
ns fo
r m
ater
ial
Mea
sure
and
lay-
put p
ipe
acco
rdin
g to
blu
eprin
t or
sket
chIn
terp
ret b
luep
rint a
nd w
ritte
n sp
ecifi
catio
ns
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
SK
ILLS
/CO
NC
EP
TS
Ter
min
olog
y:Lo
gic,
Ges
ture
. Usa
ge
Com
preh
ensi
on. D
etai
l, P
ropo
sals
, Des
crip
tion,
Ter
min
olog
y. in
stru
ctio
n
Ske
tch,
Des
crip
tion,
Log
ic, T
erm
inol
ogy,
Usa
ge
Dis
crim
inat
e fa
cts,
Log
ic, C
once
ntra
tion,
Not
e ta
king
Vis
ual a
naly
sis:
Log
ic. D
iscr
imin
atio
n, D
etai
l,R
ecog
nitio
n of
sym
bols
. Cod
es. e
tc.
Site
. Sha
pe. T
empe
ratu
re
(TA
SK
ST
AT
EM
EN
T)
IV-D
MIG
WE
LD
AL
UM
INU
M
TO
OLS
, EQ
UIP
ME
NT
, MA
TE
RIA
LS,
OB
JEC
TS
AC
TE
D U
PO
NP
ER
FO
RM
AN
CE
KN
OW
LED
GE
-S
AF
ET
Y -
I-A
ZA
RD
M iG
Wel
dinr
,pm
ent
Det
erm
ine
join
t des
ign
Ref
er to
Inde
x un
der
Sal
e P
ract
ice.
'Ele
ctric
Iner
t gas
sum
..F
iller
wire
Det
erm
ine
prep
arat
ions
nee
ded
Det
erm
ine
wel
d po
sitio
nX
VIII
Arc
Wel
ding
- [h
ems
I thr
u 28
]..
S. T
. as
requ
ired
Adj
ust g
as fl
owA
lum
inum
mat
eria
lA
djus
t wire
feed
and
cur
rent
cont
rol
.
Flo
w M
eter
Reg
ulat
orA
djus
t vol
tage
Sel
ect w
ire s
ize
and
type
'.
Com
plet
e w
eld
acco
rdin
g to
pro
per
proc
edur
eD
eter
min
e pr
ehea
t nee
ded
..
-
,..
.
,
i,
.
DE
CIS
ION
SC
UE
S.
ER
RO
RS
.
Det
erm
ine
join
t des
ign
Job
requ
irem
ents
, Spe
cific
atio
nN
ot s
ame
as s
peci
ficat
ions
Nec
essa
ry c
lean
ing
Con
ditio
n of
Met
alP
oros
ity in
wel
d
Pos
ition
nec
essa
ryE
ase
of a
pplic
atio
nP
oor
appe
aran
ce
Set
as
flow
Job
requ
irem
ent
Por
osity
, poo
r qu
ality
Set
wire
feed
and
cur
rent
Job
requ
irem
ent
Poo
r fu
sion
, app
eara
nce
Set
vol
tage
Job
requ
irem
ent
Poo
r A
rc c
hara
cter
istic
s
Sel
ect w
ire s
ize
and
type
Thi
ckne
ss a
nd ty
pe o
f bas
e m
etal
Wro
ng p
hysi
cal c
hara
cter
istic
sA
ppra
ise
finis
hed
wor
kA
ppra
ise
wel
d vi
sual
and
spe
cific
atio
nsP
oor
fusi
on. a
ppea
ranc
e
Pre
heat
to s
peci
fied
tem
pera
ture
Job
requ
irem
ent.
spec
ifica
tions
1
(TA
SK
ST
AT
EM
EN
T)
IV-1
iM
IG W
EL
D A
LU
MIN
UM
..,.*
.e...
......
......
......
..
SC
IEN
CE
'....
......
.-..-
......
...
44.
MA
TH
NU
MB
ER
SY
ST
EM
Sc
-Sim
ple
mac
hine
s us
ed to
gai
n m
echa
nica
l adv
anta
ge[u
se o
f sta
ndar
d to
ols]
Wor
k in
put,
wor
k ou
tput
, fric
tion
and
effic
ienc
y in
sim
ple
mac
hine
s[w
ire fe
ed m
echa
nism
]E
ffect
of h
eatin
g an
d co
olin
g on
exp
ansi
on o
f mat
eria
ls[c
hang
e in
mat
eria
l siz
e, d
isto
rtio
n]M
agne
tic fi
elds
of f
orce
[effe
cts
elec
tric
arc
cha
ract
eris
tics]
Tra
nsfe
r of
ene
rgy
from
one
form
to a
noth
er[E
lect
rical
ene
rgy
to h
eat]
Arr
ange
men
t of m
olec
ules
, ato
ms
and
ions
and
the
effe
ct o
nst
ruct
ure
and
stre
ngth
of m
ater
ials
[str
engt
h of
wel
d an
d m
ater
ial]
[Wel
dabl
e an
d no
n-w
elda
ble
alum
inum
allo
ys, t
empe
rs]
..
,
Set
of R
eal N
umb
rs-P
ositi
ve R
atio
nals
I und
amen
tal O
pera
tions
(C
alcu
latio
n)A
dditi
on a
lgor
ithm
-S
ubtr
actio
n al
gorit
hmM
ultip
licat
ion
algo
rithm
Div
isio
n al
gorit
hmO
rder
of o
pera
tions
. i.e
., U
se o
f par
enth
eses
in s
impl
ifyin
g ar
ithm
etic
exp
ress
ions
.B
asic
Mea
sure
men
t Ski
lls a
nd C
once
pts
,
Inst
rum
ents
[Bas
ic M
easu
rem
ent]
Mea
sure
men
t: G
eom
etric
Line
arR
eadi
ng a
nd in
terp
retin
g ta
bles
, cha
rts,
and
gra
phs
Sca
le d
raw
ings
, flo
or p
lans
! blu
eprin
ts
.,
.
CO
MM
UN
ICA
TIO
NS
...,
PE
RF
OR
MA
NC
E M
OD
ES
EX
AM
PLE
SS
KIL
LS/C
ON
CE
PT
S
Spe
akin
g
Rea
ding
Writ
ing
List
enin
g
Vie
win
g
Tou
chin
g
Mak
e or
al r
equi
sitio
n fo
r m
ater
ials
inte
rpre
t blu
eprin
t and
writ
ten
spec
ifica
tions
Mak
e w
ritte
n re
quis
ition
s fo
r m
ater
ials
nee
ded
Fol
low
ora
l ins
truc
tions
App
rais
e w
ork
Ter
min
olog
y, L
ogic
, Ges
ture
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AcetylAcetyleneM.S.--Mild steelOxyOxygenS.T.Standard tools:
ABBREVIATIONS
center punch hanimer-ballpeenclamps marking crayoncold chisel pliers-combinationcombination square pliers-vise gripscompass protractersdividers screwdriverfiles scriberhacksaw steel ruleshammer-cf sipping tape meast,re
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INDEXEYE PROTECTION
Some type of eye protection should be worn for all operations where open flame and / or arcwelding is being performed, both by the operator and those who may be required to be close by. The.oxy-acetylene, flame and molten puddle, has a high temperature and concentration, emits a largeeqantity of ultra-violet and infra-red rays which are injurious`to the eyes and skin. Special lens ingoggles and face shields, of a green or amber shade filter out most of these harmful rays while allow-ing the green, orange and yellow rays to pass through. These lenses come in shades numbered fromone to twelve. Two factors must be considered when determining the numbered lense shade to beused for best visibility of puddle detail with the least amount of eye strain and skin burn or injury.First, the intensity of the flame or arc; second, the size of the pool of molten metal. The following isa list of recommended lens shades to be used for different operations:
OPERATIONS LENS SHADE
Soft soldering and light brazing No. 1-3
For heavy silver-brazing, bronze welding and brazing; and wleding of lightgauge metal with open flame (oxy-acet) No. 4
For medium welding, heavy brazing with oxy-acet No. 5
For heavy welding and burning with oxy-acet No. 6
For very light Tig welding (up to 10 Amp) and for short periods of time(one to five min.) No. 8
For medium Tig welding (10-100 Amp) and light arc welding (stick electrode) No. 9
For heavy Tig welding and medium arc welding (up to 200 amps) No. 10
For amp exceeding 200 No. 11-12
These are, of course, all recommended uses. A good rule to follow is to use as dark a lens as possiblewith maximum visibility and a minimum of discomfort for the operator.
7674,
INDEXSAFE PRACTICES
IN WELDING
I. Introduction:Safety is a major objective in every welding shop. It is the most important attitude aoperator must learn in becoming a proficient tradesman. Therefore the goal of thesesafety policies is to provide a strong safety program for the benefit of all involved.
II. General Safety Precautions:1. Walkdo not run in shop areas.2. Remember horseplay has no place in the shop.3. Work with tools, machines and equipment only after having received proper
instruction.4. Get help for lifting heavy or awkward objects.5. Wear approved eye protection at all times.6. Report any and all injuries immediately.7. Never throw objects in shop area, distraction and injury can result.8. Be careful of long hair around moving parts of machinery.9. Be considerate for safety of others.
III. Safety Precautions for Metal Saws.I. When turning on power, stand to one side of saw frame, and adjust speed to suit work.2. Mount work only when saw is stopped.3. Support protruding. end of work or material being cut so end will not fall and
cause possible injury to anyone.4. Be sure that the blade is in good condition before using.5. If blade breaks in work, shut off power and do not attempt to disengage blade
from work until the machine has come to a stop.IV. Safety Precautions for Drill Pfess
1. Use drills that are property sharpened and that run true.2. Chuck wrenches must be removed from drill chucks before starting the machine.3. Ne er attempt to hold work under the drill by hand. Always clamp work to table.4. Change belt for speeds only when power is "Off."5. Run drills at proper speed. Forcing or feeding too fast may result in broken or
splintered drills and serious injuries.6. Keep your head back and well away from any moving part of the drill press.
V. Safety Precautions on GrindersPedestal Type: .
1. Stand to one side out of line of wheel when starting it up, especially if wheel is new.2. The face of the wheel must be flat and free from grooves.3. Make sure the tool rest is only one-eighth inch from the face of the wheel.
Check this distance, too much clearance may cause the job to jam the wheel andbreak it.
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4. Do not set tool rest while machine is in motion.5. Work should be fed slowly and gradually. Using too much pressure or striking wheel
suddenly, may cause it to break.6. Hold job against wheel firmly so that it will not slip out of the hand and cause hands
and fingers to come in contact with wheel.7. Use clamp or other suitable holding devices for grinding short pieces.8. Stop wheel if it chatters or vibrates excessively. This may be a danger signal that the
wheel is not properly balanced or not attached securely to spindle.9. Always use face shield or goggles even if grinder is provided with protective glass
shields.VI. Safety Precaution on Sheet Metal Brake
1. Keep fingers clear of the mouth of the machine when closing down on the metal.2. Use care when inserting or removing sharp edged 'sheets. -. ;3. Make sure counterweight bars do not strike others while working.4. Get assistance when bending large thick material to avoid backstrain.5. Keep fingers out of pinch area as the metal is bent, especially on maximum capacity
bends.VIII. Safety Precautions on Shears and Puach
1. Fingers must be kept out of the cutting or punching area.2. Keep your attention on the job; avoid distractions while working.3. Always use properly installed guards. .
4. The shear and punch will be operated normally by one person only.IX. Safety Precautions on Squaring Shear
1. Keep fingers clear of the blade and never under the hold down bar.2. Never reach behind the shear to support metal. This places you in an awkward
position, subject to a fall and puts fingers in a blind area.3. To -avoid crushing toes, keep feet clear of the pedal.4. Use care in handling sheared razor sharp metal.5. Never cut excessively small pieces on a shear; use hand snips.6. The shear is a one man machine; use accordingly:7. In leaning forward as blade is depressed, people tend to keep balance by grasping
the top of the large outer-casting. After the blade has descended, it is possible to in- .sert a finger inadvertently into the slide, as the blade returns, a very seriouscrush can result.
X. Safety Precautions for Hand ToolsHand Tools, General:1. Clamp work securely in vises, but do not hammer on vise handles.2. Remove filings and chips from bencehes with a brush, not the hands.2. Do not allow work to project from vise or bench and cause obstructions.4. Use the correct size wrench for the job.5. When using cutting tools, direct the cutting action away from you.6. Mushroom heads on chisels, punches, etc., should be eliminated continuously.7. Avoid carrying tools in pockets. Screwdrivers, etc. can injure you if you fall.
78
8. Inspect hand tools before using.9. When using tin snips or other similar tools, avoid letting flesh come between the
handles. Pinches and blisters generally result.10. When using a chipping hammer, chip toward wall or shield to protect others from
flying chips.Xl. Screw Drivers
1. Select screw drivers to fit screw head being used.2. Keep screw driver handle smooth.3. Do not use a hammer on a screwdriver handle.4. Avoid holding work in the hand when using a screwdriver on it, as it may slip and
cause stab wounds.5. Never grind a screwdriver to a chisel edge.
XII. Wrenches1. Discard wrenches that are spread.2. Select open-end wrenches to fit the job.3. When possible, avoid using an adjustable or monkey wrench.4. If a wrench has been burred, grind off the rough spots to avoid cutting the hands.5. It is generally safer to pull wrench toward yourself.than to push it away from you.6. Be sure that your knuckles will clear obstructions when the wrench turns.
XIII. Hammers:1. Hammers that are chipped should be discarded.2. Never use a hammer that has a loose or split handle.
XIV. Chisels:1. In using a chisel and hammer, keep the chisel head free from burring by grinding it if
necessary.2. Where chips may fly, use a shield to protect others.3. Hold the chisel and hammer firmly.4. -Do not use a chisel with a mushroomed head.
XV. Files:1. Always use a file with a handle.2. Never use a file as a pry lir.3. Keep firm grip on file at all times.4. Do not blow filings so that they can go into anyone's eyes.5. Make sure the work to be filed is securely mounted.
XVI. Pliers:1. When using pliers, keep hands clear of the pinch area. This may be at the rear of the
bolt as well as ahead.2. Place hands over short wire pieces, cotter pins or other small items being cut. Such
items tend to fly and may cause eye injury.3. Remove any burrs caused by pliers which can cause injury.
XVII. Hacksaws:1. Use the correct blade for the job.
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2. See that blade is securely fixed in the frame.3. When the saw breaks through work, ease up on the pressure so that the hand will not
strike the work or vise.XVIII. Electric Arc Welding
1. Avoid looking at the arc or flash unless equipped with appropriate dark glasses.'2. Helmets and welding goggles must be free of cracks or holes permitting penetration of
intense light.3. Wear protective clothing to help protect the skin from intense rays.4. Always wear gloves. Leather gauntlet type that can be thrOwnooff are recommended.5. Where necessary, wear leather aprons, arm coverings or other protection to protect
from molten metal or hot sparks.6. Where a helper is used, he must be protected the same as the welder.7. Wear high type shoes rather than undercut shoes.8. Always_ wear eye protection when chipping. Never chip if there is a possibility
someone nearby without glasses will be struck by flying chips.9. Keep sleeves and pants cuffs rolled down and collar buttoned up. .
10. Never touch a, piece of metal in the welding area if uncertain about the temperature.11. Mark hot metal to read "HOT."12. Do not handle excessively hot metal with gloves unless cool area beyond hot spot
permits safe handling.13. Exercise good judgement in selecting welding jobs. Automotive work is especially
hazardous due to fuel .tank, fuel line, hydraulic lines, flammable upholstery, etc.14. Special metals require the use of respirators to protect welders from harmful fumes.
Adequate ventilation is always desirable, especially when welding galvanized materials.15. Toxic gas, phosgene, is formed when the ultra-violet rays of an electric arc come in
contact with chlorinated degreasing solvents. Metal cleaned with 'carbon tetrachlorideand trichlorethylene should not be welded until throughly dried.
16. Never strike an arc on compressed air cylinders.17. Work in dry area.18. Do not get wound up in your work! Keep cables free from your body so you can move
freely, especially should your clothing ignite or some other such accident occur.20. Ground work before turning on welder.21. Do not change polarity or connections while a welder is being used.22. Keep floor free of electrodes once you begin to weld. They could cause a slip or fall.23. Place stubs in metal container.24. Never tack weld without a helmet.25. Keep clamps and other tools off the floor and put away. They can cause a fall.26. Ground the work before turning on welder.27. Keep clamps and other tools off the floor and put away. They can cause a fall.28. Replace the cables by coiling them to eliminate tripping hazards.
XIX. Oxy-Acetylene Welding1. Before attaching a regulator to a cylinder valve, "crack" the valve to blow out dust
and dirt. ret,
2. Do not use oil on the torch, blow pipe, valves, regulators, or any other portion of the..,.; .
equipment. ,
3. Check forleaks whenever you change tanks or suspect a leak.4. Leaks around equipment should be checked with soapy water, never a flame.5. Should you suspect a leak in any equipment, stop until repairs are made.6. Avoid the use of pliers on apparatus. Use torch wrench and turn right for oxygen
connections and left for gas or acetylene connections.7. Keep cylinders in upright position.8. Open cylinder valves gradually.9. Open the oxygen valves wide to prevent leakage:
10. Open acetylene cylinder valve one-eighth to one-quarter turn.11. Keep wrench on acetylene cylinder valve while in use so it can be shut off quickly if
necessary. , , ,,
12. Under no circumstances will acetylene pressure exceed 15 pounds. if used in excess ofthis amount, an explosion may result.
13. Make sure connections are tight when you change tips or other apparatus. Do notovertighten. sl,
14. Do not use oxygen to blow dirt off yourelothes.15. Use correct type eye protection for all operations.16. Keep your welding equipment in good, clean, dry condition.17. the ventilating system or means of ventilation provided.18. Keep welding area neat, clean, and dry.19. Make certain the fire extinguisher is in place and that you know how to use it.20. Do not permit autos or equipment to run over the hoses. Protect them from sharp ob-
jects, kinkS, etc. .
21. Keep the hose out of the way so it does not become a tripping hazaid.22. Make sure you do not drag the hose over hot metal scrap when cutting.23. Use flint spark lighters, never matches or cigarette lighters.24. Purge oxygen and acetylene line before lighting torch.25. Use special care when cutting so hot pieces do not fall or tumble onto feet. Do not
stand with feet so close td the cutting that they are subject to intense heat, sparks, andmolten metal.
26. Never lay down or hand up a lighted torch or blowpipe and leave welding station.27. Hot metal should be marked "HOT" with chalk or soap stone.28. Adjusting screws on regulators should always be released when not in use. Turn the
screw out counter clockwise.29. Never allow a cylinder to fall. They are under high pressure internally and can explode
if ruptured by a sudden shock. Always secure cylinder to a stationary object.30. Never use oxygen or acetylene directly from tanks without the use of regulators.31. Cylinders should not come in contact with electric wires.32. Never tamper with the fusible safety plugs.33. Acetylene piping, hoses and fittings should be color coded "Red."34. Never "crack" a cylinder in the vicinity of an open flame or fire source.35. Keep protective cylinder valve covers secured on cylinders when not in use.
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