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Welding Inspection:
Multi-Choice Questions
Paper 1 Please keep this paper unmarked 1. Which mechanical test can be used to measure the toughness of weld metal, HAZ and parent material? A B C D
macro nick break hardness Charpy impact
2. Which is the best destructive test for showing lack of side-wall fusion in a 25mm thick butt weld? A B C D
nick break side bend Charpy impact a face bend test
3. The principle purpose of a welder qualification test is.......... A B C D
to test the skill of the welder to assess the weldability of the materials to decide which NDT methods to use to give the welder practice before doing production welding
4. A fabrication procedure calls for the toes of all welds to be “blended in” by grinding. The most likely reason for doing this is to....... A B C D
make the weld suitable for liquid (dye) penetrant inspection improve the fatigue life reduce residual stresses improve the general appearance of the welds
5. For full penetration single-sided butt joints, root bead penetration and profile are mainly influenced by...... A B C D
root face bevel angle root gap included angle
6. Undercut may need to be assessed according to........... A B C D
depth length sharpness/profile/blend all of the above
7. When visually inspecting the root bead of a single-vee-butt weld it should be checked for.......... A B C D
lack of root penetration HAZ hardness tungsten inclusions all of the above
8. The strength of a fillet weld is determined by......... A B C D
Page 1 of 4
leg length weld profile weld width throat thickness
Paper 1
Welding Inspection:
Multi-Choice Questions
Paper 1 Please keep this paper unmarked 9. The European Standard for NDE of Fusion Welds by Visual Examination is......... A B C D
EN 288 EN 499 EN 287 EN 970
10. Visual inspection of a fabricated item, for a high integrity application, should cover inspection activities......... A B C D
before, during and after welding before welding only after welding only during welding and after welding only
11. Incomplete root penetration in a single-vee-butt joint may be caused by........ A B C D
an excessive root face an excessive root gap the current setting being too low both A and C
12. Incomplete root fusion in a single-vee butt weld may be caused by........ A B C D
linear misalignment the root gap being too large root faces being too small all of the above
13. When visually inspecting the face of a finished weld it should be assessed for......... A B C D
maximum excess weld metal height toe blend inter-run blend all of the above
14. A burn-through may occur if....... A B C D
the current is too low the root face is too large the root gap is too large all of the above
15. A Code of Practice is....... A B C D
a standard for workmanship quality only a set of rules for manufacturing a specific product a specification for the finished product all of the above
16. A solid inclusion in a weld may be....... A B C D
Page 2 of 4
entrapped slag entrapped gas lack of inter-run fusion all of the above
Paper 1
Welding Inspection:
Multi-Choice Questions
Paper 1 Please keep this paper unmarked 17. Which of the following is a planar imperfection? A B C D
a lack of sidewall fusion a slag inclusion linear porosity root concavity
18. For fillet welds, it is normal practice in the UK & USA to measure....... A B C D
throat thickness leg lengths penetration depths both A & C
19. In a bend test, when the face of the specimen is in tension and root is in compression, the test is called......... A B C D
a root bend a side bend a face bend a longitudinal bend
20. Heavy porosity on the surface of some MMA welds made on a construction site is most likely to be caused by..... A B C D
use of the wrong class of electrodes the use of excessive current moisture pick-up in the electrode covering a bad batch of electrodes
21. Slag inclusions may be present in....... A B C D
manual metal arc welds metal inert gas welds submerged arc welds both A and C
22. The main cause of undercut is....... A B C D
excessive amps excessive volts excessive travel speed all of the above
23. Which group of welders is most likely to require continuous monitoring by a welding inspector? A B C D
concrete shuttering welders overland pipeline welders tack welders maintenance welders
24. Which of the following fillet welds is the strongest (assuming they are all made using the same material and welded using the same WPS)? A B C D
Page 3 of 4
8 mm throat of a mitre fillet 7 mm leg + 2 mm excess weld metal mitre fillet with 10mm leg concave fillet with 11mm leg
Paper 1
Welding Inspection:
Multi-Choice Questions
Paper 1 Please keep this paper unmarked 25. A typical included angle for MMA welding of a full penetration pipe butt joint is...... A B C D
35° 70° 90° dependent on the pipe diameter
26. A fillet weld has an actual throat thickness of 8mm and a leg length of 7mm. What is the excess weld metal? A B C D
2.1mm 1.8mm 3.1mm 1.4mm
27. The fusion boundary of a fillet weld is........ A B C D
the boundary between the weld metal and HAZ the boundary between individual weld runs the depth of root penetration the boundary between the HAZ and parent material
28. If a Welding Inspector detects a type of imperfection not allowed by the Application Standard he must always..... A B C D
request further NDE reject the weld prepare a concession request only reject the weld if he considers it to be harmful
29. BS EN 970 allows the use of a magnifying glass for visual inspection but recommends that the magnification is.... A B C D
x2 x2 to x5 x5 to x10 not greater than x20
30. The majority of welder qualification tests are carried out using an unbacked joint. This is because......... A B C D
Page 4 of 4
it is quicker, and cheaper, if back-gouging is not required if the welding process is not TIG, back purging is not required all welder qualification tests are done on small diameter pipe it requires more skill and increases the welder's qualification range
Paper 1
Multi-Choice Questions
Paper 1 Please keep this paper unmarked 1. Which mechanical test can be used to measure the toughness of weld metal, HAZ and parent material? A B C D
macro nick break hardness Charpy impact
2. Which is the best destructive test for showing lack of side-wall fusion in a 25mm thick butt weld? A B C D
nick break side bend Charpy impact a face bend test
3. The principle purpose of a welder qualification test is.......... A B C D
to test the skill of the welder to assess the weldability of the materials to decide which NDT methods to use to give the welder practice before doing production welding
4. A fabrication procedure calls for the toes of all welds to be “blended in” by grinding. The most likely reason for doing this is to....... A B C D
make the weld suitable for liquid (dye) penetrant inspection improve the fatigue life reduce residual stresses improve the general appearance of the welds
5. For full penetration single-sided butt joints, root bead penetration and profile are mainly influenced by...... A B C D
root face bevel angle root gap included angle
6. Undercut may need to be assessed according to........... A B C D
depth length sharpness/profile/blend all of the above
7. When visually inspecting the root bead of a single-vee-butt weld it should be checked for.......... A B C D
lack of root penetration HAZ hardness tungsten inclusions all of the above
8. The strength of a fillet weld is determined by......... A B C D
Page 1 of 4
leg length weld profile weld width throat thickness
Paper 1
Welding Inspection:
Multi-Choice Questions
Paper 1 Please keep this paper unmarked 9. The European Standard for NDE of Fusion Welds by Visual Examination is......... A B C D
EN 288 EN 499 EN 287 EN 970
10. Visual inspection of a fabricated item, for a high integrity application, should cover inspection activities......... A B C D
before, during and after welding before welding only after welding only during welding and after welding only
11. Incomplete root penetration in a single-vee-butt joint may be caused by........ A B C D
an excessive root face an excessive root gap the current setting being too low both A and C
12. Incomplete root fusion in a single-vee butt weld may be caused by........ A B C D
linear misalignment the root gap being too large root faces being too small all of the above
13. When visually inspecting the face of a finished weld it should be assessed for......... A B C D
maximum excess weld metal height toe blend inter-run blend all of the above
14. A burn-through may occur if....... A B C D
the current is too low the root face is too large the root gap is too large all of the above
15. A Code of Practice is....... A B C D
a standard for workmanship quality only a set of rules for manufacturing a specific product a specification for the finished product all of the above
16. A solid inclusion in a weld may be....... A B C D
Page 2 of 4
entrapped slag entrapped gas lack of inter-run fusion all of the above
Paper 1
Welding Inspection:
Multi-Choice Questions
Paper 1 Please keep this paper unmarked 17. Which of the following is a planar imperfection? A B C D
a lack of sidewall fusion a slag inclusion linear porosity root concavity
18. For fillet welds, it is normal practice in the UK & USA to measure....... A B C D
throat thickness leg lengths penetration depths both A & C
19. In a bend test, when the face of the specimen is in tension and root is in compression, the test is called......... A B C D
a root bend a side bend a face bend a longitudinal bend
20. Heavy porosity on the surface of some MMA welds made on a construction site is most likely to be caused by..... A B C D
use of the wrong class of electrodes the use of excessive current moisture pick-up in the electrode covering a bad batch of electrodes
21. Slag inclusions may be present in....... A B C D
manual metal arc welds metal inert gas welds submerged arc welds both A and C
22. The main cause of undercut is....... A B C D
excessive amps excessive volts excessive travel speed all of the above
23. Which group of welders is most likely to require continuous monitoring by a welding inspector? A B C D
concrete shuttering welders overland pipeline welders tack welders maintenance welders
24. Which of the following fillet welds is the strongest (assuming they are all made using the same material and welded using the same WPS)? A B C D
Page 3 of 4
8 mm throat of a mitre fillet 7 mm leg + 2 mm excess weld metal mitre fillet with 10mm leg concave fillet with 11mm leg
Paper 1
Welding Inspection:
Multi-Choice Questions
Paper 1 Please keep this paper unmarked 25. A typical included angle for MMA welding of a full penetration pipe butt joint is...... A B C D
35° 70° 90° dependent on the pipe diameter
26. A fillet weld has an actual throat thickness of 8mm and a leg length of 7mm. What is the excess weld metal? A B C D
2.1mm 1.8mm 3.1mm 1.4mm
27. The fusion boundary of a fillet weld is........ A B C D
the boundary between the weld metal and HAZ the boundary between individual weld runs the depth of root penetration the boundary between the HAZ and parent material
28. If a Welding Inspector detects a type of imperfection not allowed by the Application Standard he must always..... A B C D
request further NDE reject the weld prepare a concession request only reject the weld if he considers it to be harmful
29. BS EN 970 allows the use of a magnifying glass for visual inspection but recommends that the magnification is.... A B C D
x2 x2 to x5 x5 to x10 not greater than x20
30. The majority of welder qualification tests are carried out using an unbacked joint. This is because......... A B C D
Page 4 of 4
it is quicker, and cheaper, if back-gouging is not required if the welding process is not TIG, back purging is not required all welder qualification tests are done on small diameter pipe it requires more skill and increases the welder's qualification range
Paper 1
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