1
CWB WELDING INSPECTOR PRACTICE EXAM 2026/2027 |
WELDING INSPECTION | 75 VERIFIED Q&A | DETAILED
RATIONALES | PASS GUARANTEED – A+ GRADED
SECTION 1: WELDING FUNDAMENTALS & SAFETY - Questions 1-10
Q1: Welding Definition
The student is reviewing welding fundamentals. Welding is best defined as:
A. A joining process that melts only the filler metal
B. A joining process that produces coalescence by heating to suitable temperatures, with or without
pressure and with or without filler metal
C. A process that uses adhesives only
D. A cutting process only
Correct Answer: B
Rationale: Welding produces coalescence by heating materials to suitable temperatures, with or
without pressure, and with or without filler metal. Brazing/soldering occur below base metal melting
point. Adhesives are not welding. [100% CORRECT]
Q2: Arc Welding Eye Protection
The student is reviewing safety. What eye protection is required for arc welding?
A. Safety glasses only
B. Welding helmet with appropriate filter shade
C. Sunglasses
D. Face shield only
Correct Answer: B
Rationale: Arc welding emits intense UV/IR radiation. A welding helmet with proper filter shade
protects eyes and face. Safety glasses alone are insufficient. [100% CORRECT]
Q3: Welding Fume Control
The student is reviewing safety. Why is ventilation important in welding?
A. To cool the welder
B. To remove toxic fumes and gases from the breathing zone
C. To improve weld appearance
D. To speed up welding
Correct Answer: B
,2
Rationale: Welding fumes contain metal oxides and gases. Proper ventilation removes fumes from
the breathing zone. [100% CORRECT]
Q4: Welding Positions – Flat
The student is reviewing positions. In the flat position (1G/1F), the weld axis is:
A. Vertical
B. Horizontal with weld face facing up
C. Overhead
D. Inclined at 45°
Correct Answer: B
Rationale: Flat position has weld axis approximately horizontal and weld face facing upward. It is the
easiest position. [100% CORRECT]
Q5: Heat Input Formula
The student is reviewing heat input. Heat input in arc welding is calculated as:
A. Voltage × Amperage × Travel Speed
B. (Voltage × Amperage × 60) / (Travel Speed × 1000)
C. Amperage / Voltage
D. Travel Speed / Amperage
Correct Answer: B
Rationale: Heat input (kJ/mm) = (Voltage × Amperage × 60) / (Travel Speed × 1000), where travel
speed is mm/min. [100% CORRECT]
Q6: Preheating Purpose
The student is reviewing preheating. The primary purpose of preheating is to:
A. Increase welding speed
B. Reduce cracking risk by slowing cooling rate
C. Improve weld appearance
D. Reduce electricity consumption
Correct Answer: B
Rationale: Preheating slows cooling, allows hydrogen escape, and reduces hardness and cracking
risk, especially in thick or high-carbon steels. [100% CORRECT]
Q7: Post-Weld Heat Treatment
The student is reviewing PWHT. Post-weld heat treatment is used to:
, 3
A. Increase hardness
B. Relieve residual stresses and improve toughness
C. Speed up cooling
D. Increase distortion
Correct Answer: B
Rationale: PWHT reduces residual stresses, softens HAZ, and improves toughness. Often required
for thick sections. [100% CORRECT]
Q8: Welding Procedure Specification
The student is reviewing documentation. A WPS provides:
A. The welder's name
B. Detailed welding variables and instructions to make a sound weld
C. The cost of welding
D. The inspection report
Correct Answer: B
Rationale: A WPS specifies welding variables (process, filler, amperage, voltage, travel speed, etc.)
required to produce a code-compliant weld. [100% CORRECT]
Q9: Procedure Qualification Record
The student is reviewing qualification. A PQR documents:
A. Welder qualification test results
B. Actual variables and test results used to qualify a WPS
C. Visual inspection results
D. Cost estimate
Correct Answer: B
Rationale: A PQR records actual welding variables and mechanical test results used to qualify a
welding procedure. It supports the WPS. [100% CORRECT]
Q10: Welder Performance Qualification
The student is reviewing welder qualification. Welder performance qualification tests:
A. The welding procedure
B. The welder's ability to produce sound welds
C. Base metal properties
D. Filler metal composition
Correct Answer: B
Rationale: Welder qualification tests the welder's skill to produce sound welds according to a
qualified WPS. [100% CORRECT]
CWB WELDING INSPECTOR PRACTICE EXAM 2026/2027 |
WELDING INSPECTION | 75 VERIFIED Q&A | DETAILED
RATIONALES | PASS GUARANTEED – A+ GRADED
SECTION 1: WELDING FUNDAMENTALS & SAFETY - Questions 1-10
Q1: Welding Definition
The student is reviewing welding fundamentals. Welding is best defined as:
A. A joining process that melts only the filler metal
B. A joining process that produces coalescence by heating to suitable temperatures, with or without
pressure and with or without filler metal
C. A process that uses adhesives only
D. A cutting process only
Correct Answer: B
Rationale: Welding produces coalescence by heating materials to suitable temperatures, with or
without pressure, and with or without filler metal. Brazing/soldering occur below base metal melting
point. Adhesives are not welding. [100% CORRECT]
Q2: Arc Welding Eye Protection
The student is reviewing safety. What eye protection is required for arc welding?
A. Safety glasses only
B. Welding helmet with appropriate filter shade
C. Sunglasses
D. Face shield only
Correct Answer: B
Rationale: Arc welding emits intense UV/IR radiation. A welding helmet with proper filter shade
protects eyes and face. Safety glasses alone are insufficient. [100% CORRECT]
Q3: Welding Fume Control
The student is reviewing safety. Why is ventilation important in welding?
A. To cool the welder
B. To remove toxic fumes and gases from the breathing zone
C. To improve weld appearance
D. To speed up welding
Correct Answer: B
,2
Rationale: Welding fumes contain metal oxides and gases. Proper ventilation removes fumes from
the breathing zone. [100% CORRECT]
Q4: Welding Positions – Flat
The student is reviewing positions. In the flat position (1G/1F), the weld axis is:
A. Vertical
B. Horizontal with weld face facing up
C. Overhead
D. Inclined at 45°
Correct Answer: B
Rationale: Flat position has weld axis approximately horizontal and weld face facing upward. It is the
easiest position. [100% CORRECT]
Q5: Heat Input Formula
The student is reviewing heat input. Heat input in arc welding is calculated as:
A. Voltage × Amperage × Travel Speed
B. (Voltage × Amperage × 60) / (Travel Speed × 1000)
C. Amperage / Voltage
D. Travel Speed / Amperage
Correct Answer: B
Rationale: Heat input (kJ/mm) = (Voltage × Amperage × 60) / (Travel Speed × 1000), where travel
speed is mm/min. [100% CORRECT]
Q6: Preheating Purpose
The student is reviewing preheating. The primary purpose of preheating is to:
A. Increase welding speed
B. Reduce cracking risk by slowing cooling rate
C. Improve weld appearance
D. Reduce electricity consumption
Correct Answer: B
Rationale: Preheating slows cooling, allows hydrogen escape, and reduces hardness and cracking
risk, especially in thick or high-carbon steels. [100% CORRECT]
Q7: Post-Weld Heat Treatment
The student is reviewing PWHT. Post-weld heat treatment is used to:
, 3
A. Increase hardness
B. Relieve residual stresses and improve toughness
C. Speed up cooling
D. Increase distortion
Correct Answer: B
Rationale: PWHT reduces residual stresses, softens HAZ, and improves toughness. Often required
for thick sections. [100% CORRECT]
Q8: Welding Procedure Specification
The student is reviewing documentation. A WPS provides:
A. The welder's name
B. Detailed welding variables and instructions to make a sound weld
C. The cost of welding
D. The inspection report
Correct Answer: B
Rationale: A WPS specifies welding variables (process, filler, amperage, voltage, travel speed, etc.)
required to produce a code-compliant weld. [100% CORRECT]
Q9: Procedure Qualification Record
The student is reviewing qualification. A PQR documents:
A. Welder qualification test results
B. Actual variables and test results used to qualify a WPS
C. Visual inspection results
D. Cost estimate
Correct Answer: B
Rationale: A PQR records actual welding variables and mechanical test results used to qualify a
welding procedure. It supports the WPS. [100% CORRECT]
Q10: Welder Performance Qualification
The student is reviewing welder qualification. Welder performance qualification tests:
A. The welding procedure
B. The welder's ability to produce sound welds
C. Base metal properties
D. Filler metal composition
Correct Answer: B
Rationale: Welder qualification tests the welder's skill to produce sound welds according to a
qualified WPS. [100% CORRECT]
