CWB WELDING INSPECTOR LEVEL 2/3
FINAL EXAMINATION PREPARATORY
QUESTIONS AND ANSWERS
1. According to CSA W47.1, what is the primary difference between a Division 1 and a Division
2 company?
A. Division 1 companies must employ a full-time welding engineer, whereas Division 2
companies may retain one on a part-time basis.
B. Division 2 companies must employ a full-time welding engineer.
C. Division 1 companies do not require a welding engineer.
D. Division 2 companies are not permitted to perform structural welding.
Answer: A
Conceptual Explanation: Under CSA W47.1, Division 1 requires a full-time employed
professional engineer, while Division 2 allows the retention of a part-time engineer.
2. Which of the following conditions is NOT a primary factor required for hydrogen-induced
cold cracking to occur?
A. An interpass temperature exceeding 300 degrees Celsius.
B. High tensile stresses acting on the weldment.
,C. A susceptible microstructure such as martensite.
D. High levels of diffusible hydrogen in the weld metal.
Answer: A
Conceptual Explanation: Hydrogen cracking requires hydrogen, stress, and a susceptible
microstructure. High interpass temperatures usually help prevent it by slowing cooling
rates.
3. In the SMAW electrode designation E4918, what does the ‘1’ represent?
A. The minimum tensile strength.
B. The welding position capability.
C. The chemical composition of the coating.
D. The type of current required.
Answer: B
Conceptual Explanation: In CSA G401 (similar to AWS A5.1), the third digit ‘1’ indicates
the electrode can be used in all positions.
4. When performing Radiographic Testing (RT), what is the purpose of the Image Quality
Indicator (IQI)?
A. To measure the amount of radiation absorbed by the film.
B. To identify the specific welder who performed the joint.
C. To determine the sensitivity and quality of the radiographic image.
, D. To increase the contrast of the final weld image.
Answer: C
Conceptual Explanation: The IQI (or penetrameter) is used to verify that the radiographic
technique is sensitive enough to detect defects of a certain size.
5. According to CSA W59, the ‘effective throat’ of a fillet weld is defined as:
A. The total thickness of the weld including reinforcement.
B. The shortest distance from the root to the face of the weld minus any reinforcement.
C. The length of the longest leg of the triangle.
D. The distance from the root to the theoretical face of the weld.
Answer: D
Conceptual Explanation: The effective throat is the minimum distance from the root of
the weld to its theoretical face, used for design strength calculations.
6. What is the Carbon Equivalent (CE) formula primarily used to evaluate?
A. The corrosion resistance of stainless steel.
B. The amount of filler metal required for a groove weld.
C. The melting point of the base metal.
D. The weldability of steel and its susceptibility to cold cracking.
Answer: D
FINAL EXAMINATION PREPARATORY
QUESTIONS AND ANSWERS
1. According to CSA W47.1, what is the primary difference between a Division 1 and a Division
2 company?
A. Division 1 companies must employ a full-time welding engineer, whereas Division 2
companies may retain one on a part-time basis.
B. Division 2 companies must employ a full-time welding engineer.
C. Division 1 companies do not require a welding engineer.
D. Division 2 companies are not permitted to perform structural welding.
Answer: A
Conceptual Explanation: Under CSA W47.1, Division 1 requires a full-time employed
professional engineer, while Division 2 allows the retention of a part-time engineer.
2. Which of the following conditions is NOT a primary factor required for hydrogen-induced
cold cracking to occur?
A. An interpass temperature exceeding 300 degrees Celsius.
B. High tensile stresses acting on the weldment.
,C. A susceptible microstructure such as martensite.
D. High levels of diffusible hydrogen in the weld metal.
Answer: A
Conceptual Explanation: Hydrogen cracking requires hydrogen, stress, and a susceptible
microstructure. High interpass temperatures usually help prevent it by slowing cooling
rates.
3. In the SMAW electrode designation E4918, what does the ‘1’ represent?
A. The minimum tensile strength.
B. The welding position capability.
C. The chemical composition of the coating.
D. The type of current required.
Answer: B
Conceptual Explanation: In CSA G401 (similar to AWS A5.1), the third digit ‘1’ indicates
the electrode can be used in all positions.
4. When performing Radiographic Testing (RT), what is the purpose of the Image Quality
Indicator (IQI)?
A. To measure the amount of radiation absorbed by the film.
B. To identify the specific welder who performed the joint.
C. To determine the sensitivity and quality of the radiographic image.
, D. To increase the contrast of the final weld image.
Answer: C
Conceptual Explanation: The IQI (or penetrameter) is used to verify that the radiographic
technique is sensitive enough to detect defects of a certain size.
5. According to CSA W59, the ‘effective throat’ of a fillet weld is defined as:
A. The total thickness of the weld including reinforcement.
B. The shortest distance from the root to the face of the weld minus any reinforcement.
C. The length of the longest leg of the triangle.
D. The distance from the root to the theoretical face of the weld.
Answer: D
Conceptual Explanation: The effective throat is the minimum distance from the root of
the weld to its theoretical face, used for design strength calculations.
6. What is the Carbon Equivalent (CE) formula primarily used to evaluate?
A. The corrosion resistance of stainless steel.
B. The amount of filler metal required for a groove weld.
C. The melting point of the base metal.
D. The weldability of steel and its susceptibility to cold cracking.
Answer: D
