CWB Level 1 Welding Processes and Equipment
Exam Questions And Answers Practice Questions
with Solutions Newest 2026 2027 | Already Graded
A+
1. What is the primary purpose of welding?
A. To cut metals
B. To join metals permanently
C. To clean metal surfaces
D. To coat metals
Answer: B
Welding is fundamentally used to permanently join two or more metal parts using heat,
pressure, or both.
2. Which process uses a consumable electrode and shielding gas?
A. SMAW
B. GMAW
C. Oxy-fuel welding
D. SAW
Answer: B
Gas Metal Arc Welding (GMAW) uses a continuously fed consumable wire electrode and
shielding gas.
3. What does SMAW stand for?
A. Shielded Metal Arc Welding
B. Submerged Metal Alloy Welding
C. Semi-Automatic Metal Arc Welding
D. Shielded Manual Arc Welding
,Answer: A
SMAW is commonly known as stick welding.
4. What is the function of flux in welding?
A. Increase voltage
B. Prevent corrosion only
C. Protect molten weld from contamination
D. Speed up cooling
Answer: C
Flux creates a shielding gas and slag to protect the weld pool.
5. Which welding process uses a continuously fed wire and no external shielding gas in some
cases?
A. FCAW
B. GTAW
C. SMAW
D. Resistance welding
Answer: A
Flux-Cored Arc Welding can be self-shielded or gas-shielded.
6. What is the main heat source in arc welding?
A. Chemical reaction
B. Electrical arc
C. Friction
D. Laser beam
Answer: B
Arc welding uses electricity to generate heat through an arc.
7. Which process is also called TIG welding?
A. SMAW
B. GTAW
C. GMAW
,D. SAW
Answer: B
Gas Tungsten Arc Welding is commonly known as TIG welding.
8. What does shielding gas do?
A. Cools the electrode
B. Prevents oxidation
C. Increases hardness
D. Reduces voltage
Answer: B
Shielding gas protects the molten weld from atmospheric contamination.
9. Which gas is commonly used in GMAW for steel?
A. Helium
B. Oxygen
C. Argon-CO₂ mix
D. Nitrogen
Answer: C
Argon with CO₂ is widely used for steel welding.
10. What is slag?
A. Metal oxide layer
B. Electrical current
C. Weld wire
D. Gas mixture
Answer: A
Slag is a byproduct formed from flux during welding.
11. Which process uses a non-consumable electrode?
A. FCAW
B. SMAW
C. GTAW
, D. SAW
Answer: C
GTAW uses a tungsten electrode that does not melt.
12. What is polarity in welding?
A. Color of electrode
B. Direction of current flow
C. Metal thickness
D. Shielding gas type
Answer: B
Polarity refers to direction of electrical current (DCEN/DCEP).
13. DCEN stands for:
A. Direct Current Electrode Negative
B. Direct Current Electrode Neutral
C. Direct Current Energy Network
D. Direct Current External Negative
Answer: A
DCEN means electrode is negative.
14. DCEP stands for:
A. Direct Current Electrical Power
B. Direct Current Electrode Positive
C. Direct Current External Power
D. Direct Current Electrode Parallel
Answer: B
DCEP means electrode is positive.
15. Which welding process is fully submerged in flux?
A. SMAW
B. SAW
C. GTAW
Exam Questions And Answers Practice Questions
with Solutions Newest 2026 2027 | Already Graded
A+
1. What is the primary purpose of welding?
A. To cut metals
B. To join metals permanently
C. To clean metal surfaces
D. To coat metals
Answer: B
Welding is fundamentally used to permanently join two or more metal parts using heat,
pressure, or both.
2. Which process uses a consumable electrode and shielding gas?
A. SMAW
B. GMAW
C. Oxy-fuel welding
D. SAW
Answer: B
Gas Metal Arc Welding (GMAW) uses a continuously fed consumable wire electrode and
shielding gas.
3. What does SMAW stand for?
A. Shielded Metal Arc Welding
B. Submerged Metal Alloy Welding
C. Semi-Automatic Metal Arc Welding
D. Shielded Manual Arc Welding
,Answer: A
SMAW is commonly known as stick welding.
4. What is the function of flux in welding?
A. Increase voltage
B. Prevent corrosion only
C. Protect molten weld from contamination
D. Speed up cooling
Answer: C
Flux creates a shielding gas and slag to protect the weld pool.
5. Which welding process uses a continuously fed wire and no external shielding gas in some
cases?
A. FCAW
B. GTAW
C. SMAW
D. Resistance welding
Answer: A
Flux-Cored Arc Welding can be self-shielded or gas-shielded.
6. What is the main heat source in arc welding?
A. Chemical reaction
B. Electrical arc
C. Friction
D. Laser beam
Answer: B
Arc welding uses electricity to generate heat through an arc.
7. Which process is also called TIG welding?
A. SMAW
B. GTAW
C. GMAW
,D. SAW
Answer: B
Gas Tungsten Arc Welding is commonly known as TIG welding.
8. What does shielding gas do?
A. Cools the electrode
B. Prevents oxidation
C. Increases hardness
D. Reduces voltage
Answer: B
Shielding gas protects the molten weld from atmospheric contamination.
9. Which gas is commonly used in GMAW for steel?
A. Helium
B. Oxygen
C. Argon-CO₂ mix
D. Nitrogen
Answer: C
Argon with CO₂ is widely used for steel welding.
10. What is slag?
A. Metal oxide layer
B. Electrical current
C. Weld wire
D. Gas mixture
Answer: A
Slag is a byproduct formed from flux during welding.
11. Which process uses a non-consumable electrode?
A. FCAW
B. SMAW
C. GTAW
, D. SAW
Answer: C
GTAW uses a tungsten electrode that does not melt.
12. What is polarity in welding?
A. Color of electrode
B. Direction of current flow
C. Metal thickness
D. Shielding gas type
Answer: B
Polarity refers to direction of electrical current (DCEN/DCEP).
13. DCEN stands for:
A. Direct Current Electrode Negative
B. Direct Current Electrode Neutral
C. Direct Current Energy Network
D. Direct Current External Negative
Answer: A
DCEN means electrode is negative.
14. DCEP stands for:
A. Direct Current Electrical Power
B. Direct Current Electrode Positive
C. Direct Current External Power
D. Direct Current Electrode Parallel
Answer: B
DCEP means electrode is positive.
15. Which welding process is fully submerged in flux?
A. SMAW
B. SAW
C. GTAW
