CWB Welding Inspector Level 1
Certification Exam | 100% Correctly
Answered and Rated A+| Latest 2026/2027
Guide
Metallurgy and Material Specification
What is semi-killed steel?
A) A steel with a small amount of oxygen added to the melt
B) A steel with no deoxidants added to the melt
C) A steel that is fully deoxidized in the melt
D) A steel with a small amount of deoxidizing material added to the melt
- Correct Answer - D
Alloys are mixtures of a metal with:
A) only other metals.
B) other non-metals.
C) both metals and non-metals.
D) iron. - Correct Answer - C
Stainless steels acquire their special stainless properties from the
presence of chromium. What percentage of chromium is required?
A) Between 1 - 5%
, B) Between 3 - 8%
C) Between 5 - 10%
D) More than 10% - Correct Answer - D
In order to obtain specific steel properties special processes can be used
such as vacuum dressing. What does vacuum dressing do?
A) Increases the gas content (hydrogen and oxygen)
B) Reduces the gas content (hydrogen and oxygen)
C) Removes the surface area of the melt by suction
D) Uses suction to stir the melt - Correct Answer - B
Which of the following steels will require the most stringent control of the
welding procedure?
A) 400W
B) 350WT
C) 700Q
D) 230G - Correct Answer - C
Ferrite is the phase that at room temperature contains almost:
A) no carbon.
B) all the austenite in a steel.
C) all the carbon in a steel.
Certification Exam | 100% Correctly
Answered and Rated A+| Latest 2026/2027
Guide
Metallurgy and Material Specification
What is semi-killed steel?
A) A steel with a small amount of oxygen added to the melt
B) A steel with no deoxidants added to the melt
C) A steel that is fully deoxidized in the melt
D) A steel with a small amount of deoxidizing material added to the melt
- Correct Answer - D
Alloys are mixtures of a metal with:
A) only other metals.
B) other non-metals.
C) both metals and non-metals.
D) iron. - Correct Answer - C
Stainless steels acquire their special stainless properties from the
presence of chromium. What percentage of chromium is required?
A) Between 1 - 5%
, B) Between 3 - 8%
C) Between 5 - 10%
D) More than 10% - Correct Answer - D
In order to obtain specific steel properties special processes can be used
such as vacuum dressing. What does vacuum dressing do?
A) Increases the gas content (hydrogen and oxygen)
B) Reduces the gas content (hydrogen and oxygen)
C) Removes the surface area of the melt by suction
D) Uses suction to stir the melt - Correct Answer - B
Which of the following steels will require the most stringent control of the
welding procedure?
A) 400W
B) 350WT
C) 700Q
D) 230G - Correct Answer - C
Ferrite is the phase that at room temperature contains almost:
A) no carbon.
B) all the austenite in a steel.
C) all the carbon in a steel.
