API 570 Course Model Test 2

8/20/2019 API 570 Course Model Test 2

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Closed Book Practice QuestionsAPI RP 577 PRACTICE QUESTIONS

1. The level of learning and training offered by RP 577 is __________________.

a. consistent with an AWS CWIb. the same as required for an AWS CWI

c. not a replacement for AWS CWI trainingd. automatically makes one a welding inspector

2. “DCEN” means.

a. direct current, electrode noneb. direct current, electrode negativec. don’t come easy, Normand. direct current, electrode normal

3. Another name or abbreviation for a penetrameter is:

a. O.C.T.b. D.E.Q.c. B.E.P.d. I.Q.I.

4. A theoretical throat dimension is based on the assumption that the root opening is equal to:

a. zerob. 1/16”c. 1/8”d. 1/32” – 1/16”

5. Welding inspection is a critical part of any ____________ program.

a. Quality Assuranceb. Quality Processc. ISO 9000

d. ISO 11000

6. Welding inspection can be separated into 3 distinct stages:

a. welding, NDE, hardness testingb. pre-welding, NDE, heat treatmentc. visual, NDE, RTd. before welding, during welding, after welding


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7. One of the items that should be checked prior to welding is:

a. confirm NDE examiners qualificationsb. confirm acceptability of heat treatment proceduresc. review WPS, PQR, and WPQ’sd. All of the above should be checked prior to welding

8. When discovered, welding defects should be:

a. radiographed to determine extentb. removed and re-inspectedc. shearwave testedd. evaluated to API 580 acceptance criteria

9. NDE examiners should be qualified to ______ when specified by the referencing code.

a. ASME XIIb. API 570c. SNT-TC-1Ad. API 510

10. As a minimum, each Inspector should review the ______________ prior to starting each job.

a. OSHA regulationsb. EPA regulationsc. site safety rulesd. HAZWOPER Guidelines

11. An advantage of SMAW is:

a. equipment is very expensiveb. slag must be removed from weld passesc. can be used on almost all commonly-used metal or alloyd. deposition rates are much higher than for other processes

12. GTAW and SMAW can be distinguished from other processes as they are both used with _______.

a. cc power suppliesb. cv power suppliesc. external gas shieldingd. flux cored electrodes

13. When welding aluminum, and magnesium with GTAW, ______ is normally used.

a. DCENb. CCPOc. DCEPd. AC


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14. GMAW can be used in 3 distinct modes of transfer. The coolest or fastest freezing of these transfers is:

a. sprayb. short circuitingc. pulse-sprayd. globular

15. A limitation of the FCAW process is:

a. slag removalb. slower than GTAW or SMAWc. lower deposition than GTAWd. lack of fusion problems because of short arcing

16. One of the unusual aspects of SAW is that:

a. it is not an arc welding processb. it can be automatedc. the arc is not visible during weldingd. a gas is used for shielding

17. The three welding documents required to make a production weld (as required by ASME IX) are:

a. WPS, PQR, WPLb. PSW, QPR, WPQc. WPQ, PQR, WPSd. POR, PQR, WOR

18. F numbers are assigned to electrodes based on their ______________.

a. alloyb. chemistryc. usability characteristicsd. flux coating

19. What type of electrodes should be stored in a heated oven after initial removal from the package?

a. low hydrogenb. cellulose coatedc. GMAW rodd. high nickel

20. Slightly damp low hydrogen electrodes should be:

a. discardedb. rebaked in special ovensc. used “as is”d. rebaked in the storage oven


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21. A welder continuity log should be maintained to allow verification that each welder has utilized each weldingprocess within a _______ period.

a. one yeab. 3 monthc. 2 yeard. six month

22. Undercut is normally found_______________.

a. in the weld metalb. in the base metalc. at the weld interfaced. at the root of the weld, only

23. Weld underbead cracking is normally found _______________________.

a. in the HAZb. in the throat of the weldc. in the weld rootd. in the weld face

24. The best NDE method used to inspect butt joints volumetrically (through the entire weld) would be:

a. PTb. VTc. RTd. LT

25. Hydrogen cracking may occur in all of the following welding processes, except:

a. SMAWb. FCAWc. SAWd. GMAW

26. In austenitic stainless steel, incomplete penetration is normally corrected by:

a. reducing travel speedb. proper heat inputc. controlling ferrite contentd. all of the above

27. “Optical aids” include which of the following:

a. levelsb. thickness gaugec. mirrorsd. fillet weld gauge


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28. A typical fillet weld gauge would include which of the following:

a. skew-Tb. Bridge Camc. Hi-Lod. Vernier Caliper

29. ACFM is an NDE technique that is applied to detect:

a. sub-surface indications, in carbon steelb. surface and sub-surface indications in stainless steelc. surface indications in carbon, alloy and stainless steeld. surface indications in carbon steel only

30. One of the best features of ACFM is that it:

a. requires not calibration standardsb. does not require a skilled operatorc. requires no electricityd. is a low temperature technique

31. Eddy Current (ET) has limited use in welding inspection, but is often used in____________.

a. heavy wall volumetric testingb. coating thickness measurementc. measuring cladding thicknessd. both b and c, above

32. The NDE Examiner that performs the radiographic film interpretation should be qualified, as a minimum, toa _____.

a. ASNT Level Ib. ASNT Level IIc. ASNT Level IIId. ASNT Level IV

33. Cobalt is normally used for radiographing thicknesses of _________.

a. 0.25” – 3.0”b. 1.5” – 7.0”c. 8.0” – 10.0”d. 0.50” – 2.0”

34. A film density of 1.0 will allow _______% of light through to the film.

a. 1%b. 10%c. 0.01%d. 0.001%


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35. Ultrasonic examination that shows a plan view of the test object would be _____________.

a. A-scanb. B-scanc. C-scand. D-scan

36. Each pass of the UT transducer should overlap the previous pass by _____% of the transducer dimension.

a. 1%b. 5%c. 10%d. 15%

37. Because of the similarities in the shape of the grains and cooling characteristics, a weld can be consideredto be a small_______________.

a. castingb. forgingc. extrusiond. ingot

38. A defect is also considered to be a (an):

a. imperfectionb. rejectable flawc. acceptable flawd. non-relevant indication

39. The vast majority of metallic materials used in refineries or chemical plants are ___________.

a. cast materialsb. killed materialsc. stainless steel materialsd. wrought materials

40. Hydrogen in welding may come from various sources, such as:

a. lubricantsb. moisturec. net electrodes

d. all of the above

41. Materials with high thermal conductivity will require ___________________.

a. higher heat input to weldb. lower heat input to weldc. preheatingd. post-weld heating


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42. Metals with a high coefficient of thermal expansion are more susceptible to:

a. transverse crackingb. lack of fusionc. warpage and distortiond. linear porosity

43. The three hardness tests normally used are the:

a. Schindler, Johnson, Williamsb. Rockwell, Vickes, Brinellc. Rockwell, UT, Shearwaved. Brinell, Vicky, Rockdale

44. In Rockwell hardness testing, the minor load is always____________________

a. 10 psib. 150 psic. 150 kgd. 10 kg

45. One of the most common types of fracture toughness tests is the _________ test.

a. Rockwellb. Tensilec. Charpyd. Stress-strain

46. How does preheating carbon steel tend to reduce hydrogen-induced delayed cracking?

a. eliminates SCCb. prevents carbon migrationc. slows the cooling rate – prevents martensite formationd. makes the grains grow so they won’t crack

47. Preheat is usually monitored by________________

a. thermocouplesb. crayonsc. contact pyrometerd. any or all of the above

48. The primary reason for PWHT is:

a. relieve residual stressesb. complete phase transformationsc. de-sensitize steeld. drive off excess moisture


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49. Hardness and hardenability are two terms that:

a. mean the same thingb. indicate the carbon content of a materialc. mean two different propertiesd. indicate the alloying content of a material

50. A typical test for hardenability is the ___________.

a. bend testb. Rockwell testc. Jominy Bar testd. Charpy V-notch test

51. The general Brinell Hardness limit for 5CR-Mo steels is:

a. 200b. 225c. 241d. 250

52. Which of the following elements influences the mechanical properties of weldments more than any other?

a. carbonb. siliconc. nitrogend. nickel

53. OPEN BOOK QUESTION: A material Test Report shows the following chemistries:

carbon – 0.15% chrome – 1.25% vanadium – 0.02%manganese – 0.20% molybdenum – 1.00% silicon – 0.53%nickel – 0.35% copper – 0.01%

What is the approximate CE of this material using the formula supplied in RP 577?

a. 0.35b. 0.7c. 0.9d. 0.55

54. From the above CE number, what should typically be done after welding this steel?

a. no PWHTb. preheatingc. PWHTd. preheat and PWHT


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55. A very specialized external loading weld test is the _________ test.

a. bendb. Schindlerinic. gleebled. rrc

56. Austenitic stainless steels typically contain chrome and nickel, and are used for:

a. corrosion resistanceb. resistance to high temperature degradationc. sulfur resistanced. both a and b, above

57. The most common measure of weldability and hot cracking of stainless steel is the _________.

a. bend testb. ferrite numberc. Charpy V-notch numberd. hydrogen number

58. An extra-low hydrogen electrode (H4) should be used when hot tapping carbon steels with a CE greaterthan _____________(%)

a. 0.50b. 0.43c. 0.25d. 0.35

59. To reduce burn-through potential, liquid flow rates should be between _________ and _________ whenhot-tapping.

a. 0.4 – 1.3 m/secb. 1.5 – 4.0 ft/secc. 0.4 – 1.2 m/secd. 40 – 70 ft/sec

60. A common weld defect encountered with the GMAW-S welding process is:

a. LOPb. slagc. LOF

d. cracking


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ANSWER SHEETFOR API RP 577 PRACTICE QUESTIONS

1. c, Para. 1

2. b, 3.17

3. d, 3.33

4. a, 3.58

5. a, 4.1

6. d, 4.1

7. d, 4.2

8. b, 4.5

9. c, 4.6

10. c, 4.7

11. c, 5.2.2

12. a, 5.2 and 5.3

13. d, 5.3

14. b, 5.4.1

15. a, 5.5.2

16. c, 5.6.2

17. c, 6.1

18. c, 7.3

19. a, 7.7

20. b, 7.7

21. d, 8.2

22. c, Table 2

23. a, Table 2

24. c, Table 4 – 5

25. d, Table 6

26. b, Table 6

27. c, 9.3.2.1

28. a, 9.3.2.3

29. c, 9.5

30. a, 9.5

31. d, 9.7

32. b, 9.8.1

33. b, 9.8.4

34. b, 9.8.9.3

35. c, 9.9

36. c, 9.9.3

37. a, 10.2

38. b, Table 10

39. d, 10.2.2

40. d, 10.2.3

41. a, 10.3.2

42. c, 10.3.4

43. b, 10.4.3

44. d, 10.4.3

45. c, 10.4.4

46. c, 10.5

47. d, 10.5

48. a, 10.6

49. c, 10.7

50. c, 10.7

51. c, 10.7

52. a, 10.9.1

53. b, Calculated 0.68 10.9.1

54. d, 10.9.1

55. a, Table 12

56. d, 10.10.1

57. b, 10.10.1

58. b, 11.2.1

59. c, 11.2.2 Last paragraph

60. c, 11.3

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API 570 Course Model Test 2