1|Page
CWB (2026//2027) ACTUAL EXAM (TESTING REAL
EXAM QUESTIONS) AND VERIFIED ANSWERS
(MULTIPLE CHOICES) |COMPLETE SOLUTIONS |A+
GRADED
19. The mechanical test used to determine the ability of a material to
resist failure by brittle fracture requires the use of:
a) A tensile test specimen.
b) A bend test specimen.
c) A compression test specimen.
d) An impact test specimen .
e) A spectrographic test. ......ANSWER......d) An impact test specimen .
20. Select the electrode that would be best suited for welding high
sulphur steels in the flat position:
a) E4924
b) E4914
c) E4927
d) E4918 ......ANSWER......d) E4918
21. Two steel plates are to be welded together. Each plate has a bevel
cut on the face to be welded. What type of weld will be made?
pg. 1
,2|Page
a) Double bevel groove weld.
b) Double vee groove weld.
c) Single bevel groove weld.
d) Vee groove weld.
e) Flare bevel groove weld. ......ANSWER......d) Vee groove weld.
22. Which side of a fillet weld gauge is used for measuring the size of a
concave faced fillet weld?
a) Leg side.
b) Straight side.
c) Throat side
d) Face side.
e) Toe side. ......ANSWER......c) Throat side
23. A backing gas is used to:
a) Prevent root burn-through.
b) Reduce root concavity.
c) Support the molten root metal.
d) Prevent root oxide contamination. ......ANSWER......d) Prevent root
oxide contamination.
24. A crack perpendicular to the length of the weld is called a:
a) Transverse crack .
pg. 2
,3|Page
b) Longitudinal crack.
c) Throat crack.
d) Underbead crack. ......ANSWER......a) Transverse crack .
25 Which of the following electrodes is classified as a basic electrode:
a) E-6010
b) E4914
c) All cellulosic electrodes.
d) Electrodes containing titania.
e) E4916 ......ANSWER......e) E4916
27. An impact test is used to determine:
a) Hardness.
b) Toughness
c) Ductility.
d) Crack size.
e) Cracking rates. ......ANSWER......b) Toughness
28. For the liquid penetrant inspection method you would:
a) Apply a thick coat of developer over the penetrant on the weld
surface in order to develop the crack defects.
b) Apply a thin coat of developer over the penetrant on the weld
surface in order to develop the crack defects.
pg. 3
, 4|Page
c) Apply a thin coat of penetrant over the developer for a period of time
equal to one half the required developer time.
d) Apply the magnetic particles before you applied the developer.
e) Apply a thin coat of developer over the clean surface of the weld
after the dwell time has elapsed and en excesses penetrant has been
completely removed. ......ANSWER......e) Apply a thin coat of developer
over the clean surface of the weld after the dwell time has elapsed
and en excesses penetrant has been completely removed.
29. Which of the following outlines the elements which generally have
the most effect upon Carbon Equivalent and weldability of steel?
a) Silicon and Nickel.
b) Carbon and Manganese
c) Sulphur, Nickel and Boron.
d) Chromium and Nickel.
e) Calcium and Nitrogen. ......ANSWER......b) Carbon and Manganese
30. A steel bar of square cross-section 2 inches x 2 inches is subject to a
load of 48 kips. What is the tensile stress in the bar?
a) 12,000 ksi.
b) 24 kips.
c) 12,000 psi.
d) 12 Mpa.
e) 24,000 psi. ......ANSWER......c) 12,000 psi.
pg. 4
CWB (2026//2027) ACTUAL EXAM (TESTING REAL
EXAM QUESTIONS) AND VERIFIED ANSWERS
(MULTIPLE CHOICES) |COMPLETE SOLUTIONS |A+
GRADED
19. The mechanical test used to determine the ability of a material to
resist failure by brittle fracture requires the use of:
a) A tensile test specimen.
b) A bend test specimen.
c) A compression test specimen.
d) An impact test specimen .
e) A spectrographic test. ......ANSWER......d) An impact test specimen .
20. Select the electrode that would be best suited for welding high
sulphur steels in the flat position:
a) E4924
b) E4914
c) E4927
d) E4918 ......ANSWER......d) E4918
21. Two steel plates are to be welded together. Each plate has a bevel
cut on the face to be welded. What type of weld will be made?
pg. 1
,2|Page
a) Double bevel groove weld.
b) Double vee groove weld.
c) Single bevel groove weld.
d) Vee groove weld.
e) Flare bevel groove weld. ......ANSWER......d) Vee groove weld.
22. Which side of a fillet weld gauge is used for measuring the size of a
concave faced fillet weld?
a) Leg side.
b) Straight side.
c) Throat side
d) Face side.
e) Toe side. ......ANSWER......c) Throat side
23. A backing gas is used to:
a) Prevent root burn-through.
b) Reduce root concavity.
c) Support the molten root metal.
d) Prevent root oxide contamination. ......ANSWER......d) Prevent root
oxide contamination.
24. A crack perpendicular to the length of the weld is called a:
a) Transverse crack .
pg. 2
,3|Page
b) Longitudinal crack.
c) Throat crack.
d) Underbead crack. ......ANSWER......a) Transverse crack .
25 Which of the following electrodes is classified as a basic electrode:
a) E-6010
b) E4914
c) All cellulosic electrodes.
d) Electrodes containing titania.
e) E4916 ......ANSWER......e) E4916
27. An impact test is used to determine:
a) Hardness.
b) Toughness
c) Ductility.
d) Crack size.
e) Cracking rates. ......ANSWER......b) Toughness
28. For the liquid penetrant inspection method you would:
a) Apply a thick coat of developer over the penetrant on the weld
surface in order to develop the crack defects.
b) Apply a thin coat of developer over the penetrant on the weld
surface in order to develop the crack defects.
pg. 3
, 4|Page
c) Apply a thin coat of penetrant over the developer for a period of time
equal to one half the required developer time.
d) Apply the magnetic particles before you applied the developer.
e) Apply a thin coat of developer over the clean surface of the weld
after the dwell time has elapsed and en excesses penetrant has been
completely removed. ......ANSWER......e) Apply a thin coat of developer
over the clean surface of the weld after the dwell time has elapsed
and en excesses penetrant has been completely removed.
29. Which of the following outlines the elements which generally have
the most effect upon Carbon Equivalent and weldability of steel?
a) Silicon and Nickel.
b) Carbon and Manganese
c) Sulphur, Nickel and Boron.
d) Chromium and Nickel.
e) Calcium and Nitrogen. ......ANSWER......b) Carbon and Manganese
30. A steel bar of square cross-section 2 inches x 2 inches is subject to a
load of 48 kips. What is the tensile stress in the bar?
a) 12,000 ksi.
b) 24 kips.
c) 12,000 psi.
d) 12 Mpa.
e) 24,000 psi. ......ANSWER......c) 12,000 psi.
pg. 4
