CWB Level 2 Closed Book | Question with 100 % correct answers | Verified
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Module
CWB Level 2 Closed Book
Institution
CWB Level 2 Closed Book
o measure the strength of a welded joint what mechanical test would you prescribe?
a) A transverse weld tension test.
b) A charpy test.
c) A CTOD test.
d) An all weld metal tension test.
e) A side bend test. - a) A transverse weld tension test.
Select the cutting process that would provide th...
CWB Level 2 Closed Book To measure the strength of a welded joint what mechanical test would you prescribe? a) A transverse weld tension test. b) A charpy test. c) A CTOD test. d) An all weld metal tension test. e) A side bend test. - ✔✔a) A transverse weld tension test. 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 - ✔✔e) Laser beam cutting 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? a) 1G b) 2G c) 3G d) 5G e) 6G - ✔✔b) 2G Which of the following imperfections is normally considered as unacceptable regardless of size or location? a) Porosity. b) Crack. c) Inadequate penetration. d) Lamination. e) Burn -through. - ✔✔b) Crack. Select the correct penetrameter thickness for 2% sensitivity when radiographing a weldment 1.25 inches in thickness. a) 0.012 in. b) 0.015 in. c) 0.025 in. d) 0.030 in. - ✔✔c) 0.025 in. Which of the following statements concerning porosity is true? a) Porosity cannot be trapped within a weld. b) Porosity moves up through later passes and will show only in a final pass. c) Porosity is restricted to the centre line of a weld. d) Porosity can result from faulty welder technique. e) Porosity can be dissipated by an appropriate heat treatment. - ✔✔d) Porosity can result from faulty welder technique. An irregular, dense white spot is seen on the radiograph of a weld. Assuming it was caused by the welding process used, which one of the processes below would be responsible? a) SMAW process.
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