CWB EXAM QUESTIONS AND ANSWERS GRADED A+ 100% VERIFIED.

CWB EXAM QUESTIONS AND ANSWERS GRADED A+
100% VERIFIED.




1. 1.To measure the strength of a welded joint what mechanical test would you
prescribe?



a) A transverse weld tension test



b) A charpy test.



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, c) A CTOD test.



d) An all weld metal tension test. e) A side bend test. ANS >>> a) A
transverse weld tension test



2. 2. Select the cutting process that would provide the narrowest heat affected
zone when cutting 12.5 mm (0.5 in) thick carbon steel.



a) Oxy-acetylene cutting.



b) Air-carbon arc cutting.



c) Oxy-propane cutting.



d) Plasma arc cutting.



e) Laser beam cutting ANS >>> e) Laser beam cutting



3. 3. Which of the following refers to a welder test where a pipe assembly
is placed vertically and the joint welded in the horizontal position without
rotating the assembly?
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, a) 1G



b) 2G



c) 3G



d) 5G



e) 6G ANS >>> b) 2G



4. 4. Which of the following imperfections is normally considered as unaccept-
able regardless of size or location?



a) Porosity.



b) Crack.



c) Inadequate penetration.




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, d) Lamination.



e) Burn-through. ANS >>> b) Crack.



5. 5. Select the correct penetrameter thickness for 2% sensitivity when radi-
ographing a weldment 1 .25 inches in thickness.



a) 0.012 in.



b) 0.015 in.



c) 0.025 in



d) 0.030 in. ANS >>> c) 0.025 in



6. 6. Which of the following statements concerning porosity is true?



a) Porosity cannot be trapped within a weld.




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