CWB Level 2 Certification Exam | Welding
Inspector Exam | All Modules | 100+
Questions and Answers Rated A+ |
2026/2027 Guide
In a basic oxygen furnace, what does the term "basic" refer to?
(A) the chemical nature of the molten steel
(B) the chemical nature of the refractory lining of the furnace
(C) the chemical nature of the oxygen
- Correct Answer - (B) the chemical nature of the refractory lining of the
furnace
Ferrite, austenite and cementite are known as:
(A) particles
(B) elements
(C) phases
- Correct Answer - (C) phases
The terms "rimmed", "semi-killed" and "killed" steel refer to the degree of
__________.
(A) Quality
,(B) Weldability
(C) Deoxidation
- Correct Answer - (C) Deoxidation
Alloys are mixtures of metals with __________.
(A) only other metals
(B) only other non-metals
(C) both metals and non-metals
- Correct Answer - (C) both metals and non-metals
Which of the following classes of steel has NO deoxidants added during
production?
(A) Rimmed
(B) Semi-killed
(C) Killed
- Correct Answer - (A) Rimmed
Which of the following classes of steel is fully-deoxidized and has a large
shrinkage cavity or "pipe" at the top?
(A) Rimmed
(B) Semi-killed
(C) Killed - Correct Answer - (C) Killed
,Below 723° Celsius, what grain structure does steel have?
(A) FCC
(B) BCC - Correct Answer - (B) BCC
What is the difference between normalizing and annealing?
- Correct Answer - Normalizing is air-cooled;
Annealing is furnace-cooled
Which structure is more densely-packed - FCC or BCC?
- Correct Answer - FCC
Which of the following welding techniques involves higher energy input?
(A) weaving technique
(B) depositing stringer beads - Correct Answer - (A) weaving technique
Centerline solidification cracking is most likely caused by welding speed
that is:
(A) too high
(B) too slow - Correct Answer - (A) too high
What type of flux does NOT easily transfer oxygen to the weld metal?
, (A) Fused
(B) Rutile
(C) Basic
(D) Alkaline - Correct Answer - (C) Basic
Does low-carbon steel undergo any major changes to its microstructure
when given a stress-relief treatment at 625° Celsius?
- Correct Answer - No - it would need to reach 723°Celsius
A "controlled thermal severity" test (CTS) uses which type of weld?
(A) fillet
(B) groove - Correct Answer - (A) fillet
Another term for weld fault is:
(A) discontinuity
(B) defect - Correct Answer - (B) defect
Is an incorrect root opening a dimensional fault or a structural fault?
- Correct Answer - Dimensional fault
Is overlap a dimensional fault or a structural fault?
- Correct Answer - Structural fault
Inspector Exam | All Modules | 100+
Questions and Answers Rated A+ |
2026/2027 Guide
In a basic oxygen furnace, what does the term "basic" refer to?
(A) the chemical nature of the molten steel
(B) the chemical nature of the refractory lining of the furnace
(C) the chemical nature of the oxygen
- Correct Answer - (B) the chemical nature of the refractory lining of the
furnace
Ferrite, austenite and cementite are known as:
(A) particles
(B) elements
(C) phases
- Correct Answer - (C) phases
The terms "rimmed", "semi-killed" and "killed" steel refer to the degree of
__________.
(A) Quality
,(B) Weldability
(C) Deoxidation
- Correct Answer - (C) Deoxidation
Alloys are mixtures of metals with __________.
(A) only other metals
(B) only other non-metals
(C) both metals and non-metals
- Correct Answer - (C) both metals and non-metals
Which of the following classes of steel has NO deoxidants added during
production?
(A) Rimmed
(B) Semi-killed
(C) Killed
- Correct Answer - (A) Rimmed
Which of the following classes of steel is fully-deoxidized and has a large
shrinkage cavity or "pipe" at the top?
(A) Rimmed
(B) Semi-killed
(C) Killed - Correct Answer - (C) Killed
,Below 723° Celsius, what grain structure does steel have?
(A) FCC
(B) BCC - Correct Answer - (B) BCC
What is the difference between normalizing and annealing?
- Correct Answer - Normalizing is air-cooled;
Annealing is furnace-cooled
Which structure is more densely-packed - FCC or BCC?
- Correct Answer - FCC
Which of the following welding techniques involves higher energy input?
(A) weaving technique
(B) depositing stringer beads - Correct Answer - (A) weaving technique
Centerline solidification cracking is most likely caused by welding speed
that is:
(A) too high
(B) too slow - Correct Answer - (A) too high
What type of flux does NOT easily transfer oxygen to the weld metal?
, (A) Fused
(B) Rutile
(C) Basic
(D) Alkaline - Correct Answer - (C) Basic
Does low-carbon steel undergo any major changes to its microstructure
when given a stress-relief treatment at 625° Celsius?
- Correct Answer - No - it would need to reach 723°Celsius
A "controlled thermal severity" test (CTS) uses which type of weld?
(A) fillet
(B) groove - Correct Answer - (A) fillet
Another term for weld fault is:
(A) discontinuity
(B) defect - Correct Answer - (B) defect
Is an incorrect root opening a dimensional fault or a structural fault?
- Correct Answer - Dimensional fault
Is overlap a dimensional fault or a structural fault?
- Correct Answer - Structural fault
