Viw Practice Exam Sample Questions

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Sample Questions and

Practice Examination

for

Visual Inspection

Workshop

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VIW Sample Questions

Refer to Part B Book of Specifications for acceptance criteria

1. What is the width of the reduced section tensile specimen B? a. 0.75 inches

b. 0.80 inches c. 0.85 inches d. 0.90 inches e. none of the above

2. What is the thickness of the reduced section tensile specimen B? a. 5.8 mm

b. 0.23 inches c. 0.185 inches d. both a and b above e. none of the above

3. Using the answers from Questions 1 and 2 above to calculate tensile specimen B's cross sectional area, and the formula on Page 6 of these exercises, what is specimen B's tensile strength if it fractured at a maximum load of 11,030 pounds during the tensile test?

a. 75,000 psi b. 79,495 psi c. 84,000 psi d. 89,000 psi e. 89,500 psi

4. What is the area of the reduced section of tensile specimen C? a. 0.12 square inches

b. 120 square mm c. 0.17 square inches d. both a and b above e. none of the above

5. Using the answer from Question 4 above, and the formula on Page 6 of these Exercises, what is Specimen C's tensile strength if it exhibited a maximum load of 13,080 pounds during the tensile test?

a. 107,000 psi b. 108,000 psi c. 109,000 psi d. 110,000 psi e. 111,000 psi

6. If the specimen from Question 5 was taken from a piece of 2 1/2 inch thick A514 steel, does it meet the specification requirements for tensile strength?

a. yes b. no

c. impossible to determine from the information provided d. no value for required tensile strength provided

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7. Is the porosity in section A3 of the smallest T-Joint weld sample acceptable? a. yes

b. no

c. cannot be determined d. no acceptance criteria given e. none of the above

8. What is the actual measured weld size on Side B of the smallest T-Joint sample? a. 7/16 inch

b. 1/4 inch c. 5/16 inch d. 3/8 inch

e. none of the above

9. What is the actual measured weld size of Side B of the largest T-Joint sample? a. 3/16 inch

b. 1/4 inch c. 5/16 inch d. 3/8 inch

e. none of the above

10. Is the porosity in section B2 of the smallest T-Joint sample acceptable? a. yes

b. no

c. cannot be determined d. no acceptance criteria given e. none of the above

11. What is the size of the item being measured with the machinist's scale in the sketch below? 12. 1 and 23/32 inch

13. 1 and 23/64 inch 14. 1 and 21/64 inch 15. 1 and 21/32 inch 16. 1 and 5/8 inch

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12. The micrometer reading below was obtained measuring the width of a rectangular tensile specimen marked as Sample X? a. 0.658 inch b. 0.568 inch c. 0.762 inch d. 0.678 inch e. 0.750 inch

13. The dial caliper reading below was obtained measuring the thickness of Sample X noted in Question 12? 14. 18.90 mm

15. 10.87 mm 16. 187.0 mm 17. 18.70 mm

18. none of the above

14. Using the conversion chart on Page 6 of these Exercises, what is the SI conversion for Question 12? a. 22.76 mm

b. 20.69 mm c. 19.35 mm d. 19.15 mm e. 18.77 mm

15. Using the conversion chart on Page 6 of these Exercises, what is the U.S. Customary conversion for Question 13? a. 0.936 inch

b. 0.778 inch c. 0.887 inch d. 0.966 inch e. 0.736 inch

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16. Using the required values from Questions 12-15 above, calculate the area of Sample X in square inches and square millimeters.

a. 0.777 square inches and 501.294 square millimeters b. 0.555 square inches and 358.062 square millimeters c. 0.738 square inches and 476.131 square millimeters d. 0.561 square inches and 361.845 square millimeters e. cannot be calculated

17. If the tensile Sample X fails at a load of 51,550 pounds, and using the values from Question 16, what is its ultimate tensile strength (using the formula on Page 6)?

a. 91,889 psi b. 82,800 psi c. 66,400 psi d. 37,000 psi

e. cannot be calculated

18. What is the size of the weld being measured with the fillet weld gage shown below? a. 5/16 inch

b. 1/4 inch

c. less than 1/4 inch

d. cannot properly measure weld with the gage shown e. since the weld is convex, it cannot be measured

19. The fillet weld below is required to be 3/8 inch in size. What can be said about the weld measurement being made in the sketch below?

a. the weld is not acceptable because it is too large b. the weld is acceptable

c. the weld is not acceptable because it is too small

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20. The groove weld shown below is required to have a maximum weld reinforcement of 1/32 inch. From the measurement shown in the sketch, what should be said about the weld?

a. the weld is unacceptable because there is not enough reinforcement b. the weld is unacceptable because there is too much reinforcement

c. the weld is unacceptable because the requirement only applies to the face reinforcement, and the root reinforcement (or face reinforcement if it is a back weld), is being measured

d. the weld area being measured is acceptable regarding the amount of reinforcement e. this gage should not be used to measure reinforcement

Conversion Factors

To Convert From:

To:

Multiply By:

inches

millimeters

25.4

millimeters

inches

3.937 x 10

-2

Tensile Strength Formula

Tensile Strength = Load to fracture

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VIW PRACTICE EXAMINATION

Refer to Part B Specification

Read each question carefully and select the one best answer. It is helpful for you to write down the Appendix number(s) and page(s) where you find the answer. The exam should be completed within a two hour period.

1. The designer is specifying the joint designation, B-U2-GF, for the welding of two structural members. What is the maximum acceptable range of root opening dimensions, as detailed, available to the designer for that joint

configuration? a. 0 to 1/8 inch

b. 1/16 inch to 3/16 inch c. 0 to 1/4 inch

d. 0 to 3/16 inch e. none of the above

2. Where should the designation A5.18 be placed on the Appendix I form? a. space # 5

b. space # 6 c. space # 7 d. space # 1

e. none of the above

3. Which of the following would be a matching electrode for GMAW of 3 inch thick A514 steel? a. ER110S

b. ER100S

c. ER110S with 20 ft-lbs minimum impact strength at 0O F

d. all of the above e. none of the above

4. For GMAW welding of 3 inch thick A514 steel, what is the required preheat and interpass temperature? a. 225O F minimum

b. 225O F maximum

c. 225O F minimum to 450O F maximum

d. 225O F minimum to 400O F maximum

e. none of the above

Questions 5 and 6 refer to the Butt Joint weld sample.

5. Is the depth of the undercut on this weld sample acceptable if the weld axis is parallel to the primary stress? a. yes

b. no

c. no acceptance criteria provided d. not enough information provided e. none of the above

6. Is the amount of weld reinforcement on this sample acceptable? a. yes

b. no

c. no acceptance criteria provided d. not enough information provided e. none of the above

7. Which of the following processes would be acceptable for the prequalified joint B-U2a-GF? a. FCAW

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c. GTAW d. SAW

e. none of the above

The following information applies for questions 8 through 13:

A welding procedure is being qualified for the welding of A514 plate for a bridge application. The welding process to be used is a FCAW, and the weld configuration is a single-V-groove weld with a steel backing. The thickness of the test plate is 1-1/2 inches. This procedure qualification coupon is being welded in the

horizontal position for plate.

8. What is the matching filler metal classification for this base metal? a. E11XT with 20 ft-lbs minimum impact strength at 0O F

b. E10XT c. E8XT

d. E8XT with 20 ft-lbs minimum impact strength at 0O F

e. none of the above

9. What is the required preheat and interpass temperature for this procedure? a. 150O C minimum to 205O C maximum

b. 125O F minimum to 400O F maximum

c. 50O C minimum to 230O C maximum

d. a and b above e. b and c above

10. For what thicknesses will this procedure be qualified if the required tests are successfully passed? a. 3/4 inch

b. 3 inches maximum c. unlimited thickness d. 3/4 to 1-1/2 inches e. none of the above

11. If the welder who performs this procedure qualification is successfully qualified, in what positions is that individual qualified for production welding?

a. horizontal groove and fillet welds in plate b. flat and horizontal grooves in plate

c. flat and horizontal grooves in pipe if the pipe is greater than 24 inches diameter with backing or backgouging d. flat and horizontal fillets in pipe

e. all of the above

12. What is the F number of the filler metal required for this qualification test? a. 1

b. 3 c. 6 d. 5

e. none of the above

13. What test specimens are required for this qualification test? a. 2 reduced section tensiles, 2 root bends, 2 face bends b. 2 reduced section tensiles, 4 side bends

c. 2 reduced section tensiles, 2 macroetch specimens, 4 side bends

d. 2 reduced section tensiles, 2 macroetch specimens, 2 root bends, 2 face bends e. none of the above

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14. A shielding gas flow rate is 7.5 liters per minute. What is the flow rate in cubic feet per hour? a. 15.9 b. 3.54 c. 159 d. 35.4 e. 12.8

15. During the evaluation of a guided bend test specimen, a 5/16 inch corner crack is observed. There is no evidence of slag inclusions or other fusion type discontinuities. The specimen is:

a. acceptable

b. rejectable because the crack is greater than1/4 inch long c. rejectable because the crack is greater than1/8 inch long

d. disregarded and a replacement specimen should be removed from the original weld. e. disregarded and a replacement specimen should be removed from a different weld 16. Where should the designation E6010 be placed on the Appendix I form?

a. space # 5 b. space # 6 c. space # 7

d. no prescribed place for this information

e. this information is not applicable for procedure qualification

Questions 17 and 18 refer to the largest T-Joint sample

17. Based on the actual size of the fillet weld on Side A, what is the maximum size this weld will meet per the Part B Specification?

a. 1/4 inch b. 5/16 inch c. 3/8 inch d. 7/16 inch

e. none of the above

18. The discontinuity occurring in the region of the fillet weld from 0 to A1 is properly referred to as: a. root porosity

b. linear porosity c. cluster porosity d. aligned porosity e. wormhole porosity

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Questions 19 and 20 refer to the smallest T-Joint sample

19. Is the porosity at location A1 acceptable?

a. yes b. no

c. cannot be determined d. no acceptance criteria given e. none of the above

20. Is the porosity at location A2 acceptable? a. yes

b. no

c. cannot be determined d. no acceptance criteria given e. none of the above

The following information applies for Questions 21 through 26:

A welder successfully qualifies on a groove weld in the 5G position on 8 inch, schedule 80 pipe using the SMAW process. The pipe materials are API 5LX, Grades X42 and X52.

21. For what maximum thickness range is this qualification valid? a. 5/16 inch through 3/4 inch

b. 1/2 inch through 1 inch c. 0.187 inches to unlimited d. all of the above

e. none of the above

22. Which electrode classification is an appropriate matching filler metal for this qualification to Part B? a. E7018

b. E7028 c. E6010

d. both a and b above e. none of the above

23. For what range of pipe diameters is this qualification valid? a. 1 inch through 4 inch

b. 4 inch and smaller c. 4 inch and larger d. test diameter and below e. all diameters

24. What test specimens were required? a. 2 face bends, 2 root bends b. 1 face bend, 1 root bend

c. 2 face bends, 2 root bends, 2 reduced section tensile samples d. 4 side bends, 2 reduced section tensile samples

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25. What is the required preheat and interpass temperature for this joint? a. none required

b. none if the base metal is above 32O F

c. 50O F minimum

d. 150O F minimum

e. 50O F minimum and 400O F maximum

26. What F number(s) apply to the proper filler metal for this application? a. 1 and 6

b. 2 and 6 c. 1 and 4 d. 4 only e. 1 only

Questions 27 through 29 refer to the sample tensile specimen A

27. What is the width of the reduced section?

a. 0.45 inches b. 0.50 inches c. 12.7 millimeters d. 15.4 millimeters e. b and c above

28. What is the thickness of the reduced section? a. 0.20 inches

b. 5.1 millimeters c. 0.25 inches

d. both a and b above e. both b and c above

29. Using the answers from Questions 27 and 28 above to calculate an area, what is its tensile strength if it exhibited a maximum load of 8560 pounds during the tensile test?

Tensile Strength = Load Area a. 68,000 psi b. 68,480 psi c. 72,500 psi d. 74.500 psi e. 75,000 psi

30. If a welder completes a weld joint in the 6G position for a welder qualification test by starting the weld at the bottom of the pipe and travels upward toward the top, where should that information regarding the welding direction be placed on the Appendix II form?

a. space # 3 b. space # 7 c. space #12 d. space # 16 e. none of the above

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Questions 31 and 32 refer to the smallest T-Joint sample.

31. Is the porosity at location B1 on Side B acceptable?

a. yes b. no

c. cannot be determined d. no acceptance criteria given e. none of the above

32. The porosity appearing at B1, Side B, would best be described as: a. linear or aligned porosity

b. cluster porosity c. wormhole porosity d. elongated porosity e. grouped porosity

33. What is the heat input for a weld made with the GMAW process using 26 volts, 260 amperes, and a travel speed of 6 inches per minute?

Heat Input = Amps x volts x 60 Travel Speed (ipm)

a. 64,000 J/inch b. 66,000 J/inch c. 66,600 J/inch d. 67,600 J/inch e. 68,000 J/inch

Questions 34 through 36 refer to the sample Fillet Weld A.

34. What rejectable discontinuity exists in the fillet weld on Side 1?

a. toe crack b. crater crack c. underfill

d. excessive weld reinforcement e. overlap

35. If the fillet weld on Side 3 is measured, what is the maximum fillet weld size it will meet per Part B? a. 3/16 inch

b. 1/4 inch c. 5/16 inch d. 3/8 inch

e. none of the above

36. Is the undercut on Side 4 acceptable if the weld axis is transverse to the direction of primary stress? a. yes

b. no

c. no acceptance criteria provided d. not enough information provided e. none of the above

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37. Which of the following filler metals is best suited for welding the austenitic stainless steel base metals? a. E7018

b. ER308 c. E308L

d. both b and c above e. none of the above

38. If you encounter a metal plate for which there is no identification of its specification and grade, what test(s) could be performed to make that determination?

a. tensile test b. chemical analysis c. macrographic etching d. both a and b above e. both b and c above

Questions 39 and 40 refer to the Guided Bend Samples.

39. If this set of guided bend samples is from a welder qualification on pipe, Specimens A and B are: a. root bends

b. face bends c. side bends

d. not enough information provided e. none of the above

40. Is the welder who welded this test pipe qualified if all the bend test samples are required for qualification? a. no

b. yes

c. one bend test is unacceptable, but the welder would be considered qualified if the weld was made in the 2G position where only two specimens are necessary.

d. not enough information provided e. none of the above

41. Using a matching filler metal for 1 inch thick A514, what is the minimum required yield strength of the weld metal if using the SMAW process?

a. 87 ksi b. 87,000 psi c. 97 ksi

d. both a and b above e. none of the above

Questions 42 through 44 refer to the Fillet Weld Sample B.

42. Is the weld size on side 2 of sufficient size if the drawing requires a 1/2 inch fillet weld? a. yes

b. no

c. no acceptance criteria provided d. not enough information provided e. none of the above

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43. What discontinuity is present on the base metal surface adjacent to the weld on Side 3? a. underfill

b. overlap c. crack d. arc strike

e. none of the above

44. Is the weld on Side 1 acceptable? a. yes

b. no

c. no acceptance criteria provided d. not enough information provided e. none of the above

45. If a welder qualifies on a 3/8 inch thick plate groove joint, what thickness of plate groove joint is that welder not qualified to weld in production?

a. 1/4 inch b. 1/2 inch c. 3/4 inch d. 1 inch

e. both b and c above

46. If a welding procedure is qualified on 10 inch diameter, schedule 20 pipe, for what range of diameters and wall thicknesses is this procedure considered qualified?

a. diameters 4 inches and over, wall thicknesses over 3/16 inch b. diameters 10 inches and over, wall thicknesses over 1/4 inch c. diameters 10 inches and over, wall thicknesses over 1/8 inch

d. diameters 10 inches and over, wall thicknesses from 1/8 inch to 1/4 inch e. diameters 10 inches and over, wall thicknesses from 1/8 inch to 1/2 inch

Figure

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