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F A5
Unit 4Unit 4Lines & SymbolsLines & Symbols
Identify features from different linesMatch drawings symbols with their meaningIdentify features from different linesMatch drawings symbols with their meaning
Learning ObjectivesLearning Objectives
page 37page 37
Alphabet of LinesAlphabet of Lines
property lineproperty line
border lineborder line
object lineobject line
hidden linehidden line
center linecenter line
UNIT 4page 37UNIT 4
page 37
Alphabet of LinesAlphabet of Lines
dimension & extension linesdimension & extension lines 23’-6”
UNIT 4page 38UNIT 4
page 38
Alphabet of LinesAlphabet of Lines
break linesbreak lineslonglong
shortshort
UNIT 4page 38UNIT 4
page 38
Alphabet of LinesAlphabet of Lines
FA5
direction section is facing
direction section is facingsection identificationsection identification
sheet numberlocation of section
sheet numberlocation of section
GS12
B B
cutting-plane linescutting-plane lines
UNIT 4page 38UNIT 4
page 38
Lines Lines Figure 4-1Figure 4-1
SymbolsSymbolsFigure 4-2Figure 4-2
SymbolsSymbols Page 253Page 253
SymbolsSymbols Page 253Page 253
Test Your KnowledgeTest Your Knowledge
Take 5 minutes & answer questions on Take 5 minutes & answer questions on bottom of bottom of page 40page 40
UNIT 4UNIT 4
Line ActivityLine Activity
Take 5 minutes & draw lines in Take 5 minutes & draw lines in Activity 4-1Activity 4-1 on on page 41page 41
UNIT 4UNIT 4
Construction Drawing SymbolConstruction Drawing Symbol
Take 10 minutes & draw the proper symbol Take 10 minutes & draw the proper symbol for for Activity 4-2Activity 4-2 on on page 42page 42
Refer to Refer to Section 7Section 7 for library of symbols for library of symbols
starting onstarting on page 253page 253
END UNIT 4END UNIT 4
UNIT 4UNIT 4
