CWB Level 1 Welding Processes and Equipment exam verified with correct answers and
rationales 2026/2027 version
1. What is welding?
A. A process of joining materials by heat, pressure, or a combination of both
B. A process used only to cut metal
C. A method of painting steel
D. A method of measuring metal thickness
Correct Answer: A. A process of joining materials by heat, pressure, or a combination of
both
Rationale: Welding creates a permanent or semi-permanent joint between materials.
2. Which process uses a flux-coated consumable electrode?
A. SMAW
B. GTAW
C. Oxyfuel cutting
D. Plasma cutting
Correct Answer: A. SMAW
Rationale: Shielded Metal Arc Welding uses a flux-coated stick electrode.
3. SMAW is commonly known as:
A. Stick welding
B. TIG welding
C. MIG welding
D. Submerged arc welding
Correct Answer: A. Stick welding
Rationale: SMAW is commonly called stick welding because it uses stick electrodes.
4. GTAW is commonly known as:
A. TIG welding
B. MIG welding
C. Stick welding
D. Flux cutting
Correct Answer: A. TIG welding
Rationale: Gas Tungsten Arc Welding is commonly called TIG.
,5. GMAW is commonly known as:
A. MIG welding
B. Stick welding
C. TIG welding
D. Oxyfuel welding
Correct Answer: A. MIG welding
Rationale: Gas Metal Arc Welding is commonly known as MIG welding.
6. FCAW uses:
A. A flux-cored electrode
B. Only a tungsten electrode
C. A carbon electrode only
D. No electrode
Correct Answer: A. A flux-cored electrode
Rationale: FCAW uses a continuously fed tubular electrode containing flux.
7. The primary purpose of shielding gas is to:
A. Protect the molten weld pool from atmospheric contamination
B. Cool the electrode
C. Increase rust formation
D. Replace the welding machine
Correct Answer: A. Protect the molten weld pool from atmospheric contamination
Rationale: Oxygen and nitrogen from the atmosphere can cause weld defects.
8. The welding arc is produced by:
A. An electrical discharge between the electrode and workpiece
B. Water pressure
C. Mechanical vibration only
D. Compressed air alone
Correct Answer: A. An electrical discharge between the electrode and workpiece
Rationale: The arc produces the heat needed for fusion.
9. The welding power source provides:
A. Electrical energy for the welding arc
B. Shielding gas only
C. Filler metal only
D. Cooling water only
, Correct Answer: A. Electrical energy for the welding arc
Rationale: The power source supplies the voltage and current needed to maintain the arc.
10. Amperage primarily affects:
A. Welding current and heat input
B. The color of the helmet
C. Gas cylinder size only
D. Electrode packaging
Correct Answer: A. Welding current and heat input
Rationale: Current affects melting rate and penetration.
11. Voltage in arc welding primarily affects:
A. Arc length and arc characteristics
B. The weight of the workpiece
C. The color of the weld helmet
D. The electrode coating thickness only
Correct Answer: A. Arc length and arc characteristics
Rationale: Voltage is related to arc length and influences the shape of the arc and weld.
12. A welding circuit must be:
A. Complete for current to flow
B. Open at all times
C. Connected only to the gas cylinder
D. Made entirely of plastic
Correct Answer: A. Complete for current to flow
Rationale: Current flows through a complete electrical circuit.
13. The work clamp should be connected:
A. Securely to the workpiece or suitable work table
B. To a gas hose
C. To the electrode holder
D. To the welder's clothing
Correct Answer: A. Securely to the workpiece or suitable work table
Rationale: A proper work connection completes the welding circuit.
14. A poor work connection can cause:
rationales 2026/2027 version
1. What is welding?
A. A process of joining materials by heat, pressure, or a combination of both
B. A process used only to cut metal
C. A method of painting steel
D. A method of measuring metal thickness
Correct Answer: A. A process of joining materials by heat, pressure, or a combination of
both
Rationale: Welding creates a permanent or semi-permanent joint between materials.
2. Which process uses a flux-coated consumable electrode?
A. SMAW
B. GTAW
C. Oxyfuel cutting
D. Plasma cutting
Correct Answer: A. SMAW
Rationale: Shielded Metal Arc Welding uses a flux-coated stick electrode.
3. SMAW is commonly known as:
A. Stick welding
B. TIG welding
C. MIG welding
D. Submerged arc welding
Correct Answer: A. Stick welding
Rationale: SMAW is commonly called stick welding because it uses stick electrodes.
4. GTAW is commonly known as:
A. TIG welding
B. MIG welding
C. Stick welding
D. Flux cutting
Correct Answer: A. TIG welding
Rationale: Gas Tungsten Arc Welding is commonly called TIG.
,5. GMAW is commonly known as:
A. MIG welding
B. Stick welding
C. TIG welding
D. Oxyfuel welding
Correct Answer: A. MIG welding
Rationale: Gas Metal Arc Welding is commonly known as MIG welding.
6. FCAW uses:
A. A flux-cored electrode
B. Only a tungsten electrode
C. A carbon electrode only
D. No electrode
Correct Answer: A. A flux-cored electrode
Rationale: FCAW uses a continuously fed tubular electrode containing flux.
7. The primary purpose of shielding gas is to:
A. Protect the molten weld pool from atmospheric contamination
B. Cool the electrode
C. Increase rust formation
D. Replace the welding machine
Correct Answer: A. Protect the molten weld pool from atmospheric contamination
Rationale: Oxygen and nitrogen from the atmosphere can cause weld defects.
8. The welding arc is produced by:
A. An electrical discharge between the electrode and workpiece
B. Water pressure
C. Mechanical vibration only
D. Compressed air alone
Correct Answer: A. An electrical discharge between the electrode and workpiece
Rationale: The arc produces the heat needed for fusion.
9. The welding power source provides:
A. Electrical energy for the welding arc
B. Shielding gas only
C. Filler metal only
D. Cooling water only
, Correct Answer: A. Electrical energy for the welding arc
Rationale: The power source supplies the voltage and current needed to maintain the arc.
10. Amperage primarily affects:
A. Welding current and heat input
B. The color of the helmet
C. Gas cylinder size only
D. Electrode packaging
Correct Answer: A. Welding current and heat input
Rationale: Current affects melting rate and penetration.
11. Voltage in arc welding primarily affects:
A. Arc length and arc characteristics
B. The weight of the workpiece
C. The color of the weld helmet
D. The electrode coating thickness only
Correct Answer: A. Arc length and arc characteristics
Rationale: Voltage is related to arc length and influences the shape of the arc and weld.
12. A welding circuit must be:
A. Complete for current to flow
B. Open at all times
C. Connected only to the gas cylinder
D. Made entirely of plastic
Correct Answer: A. Complete for current to flow
Rationale: Current flows through a complete electrical circuit.
13. The work clamp should be connected:
A. Securely to the workpiece or suitable work table
B. To a gas hose
C. To the electrode holder
D. To the welder's clothing
Correct Answer: A. Securely to the workpiece or suitable work table
Rationale: A proper work connection completes the welding circuit.
14. A poor work connection can cause:
