2026 Update) Questions and Verified
Answers | 100% Correct | Grade A
CWB Level 1 Exam Prep
Practice Questions with Answers (2025/2026 Aligned)
(Covers welding safety, symbols, processes, inspection basics, materials,
defects, measurement, and codes)
1.
What is the primary purpose of a Welding Procedure Specification (WPS)?
A. To inspect welders
B. To control how welding is performed
C. To calculate project costs
D. To design buildings
Answer: B
Rationale: A WPS provides instructions to ensure consistent, acceptable
weld quality.
2.
Which defect is caused by gas trapped in the weld metal?
A. Undercut
B. Porosity
,C. Lack of fusion
D. Crack
Answer: B
3.
What is the safest action before welding in a confined space?
A. Increase amperage
B. Ensure proper ventilation
C. Remove gloves
D. Use smaller electrodes
Answer: B
4.
Which welding process uses a continuously fed wire electrode and
shielding gas?
A. SMAW
B. GTAW
C. FCAW
D. GMAW
Answer: D
5.
What does “E7018” mean in electrode classification?
A. Electrode length
,B. Weld color
C. Strength and usability characteristics
D. Welding speed
Answer: C
6.
Which measuring tool is best for checking weld size?
A. Tape measure
B. Weld gauge
C. Thermometer
D. Level
Answer: B
7.
Undercut in a weld is best described as:
A. Excess weld metal
B. A groove melted into the base metal beside the weld
C. Gas bubbles in weld
D. Slag trapped inside
Answer: B
8.
What happens if travel speed is too fast?
A. Wider bead
, B. Better penetration
C. Lack of fusion
D. Stronger weld
Answer: C
9.
Which type of joint uses two plates aligned in the same plane?
A. Lap joint
B. Butt joint
C. Tee joint
D. Corner joint
Answer: B
10.
Which position is considered the most difficult for welding?
A. Flat
B. Horizontal
C. Vertical
D. Overhead
Answer: D
11.
What does a fillet weld symbol look like?
A. Square