ALABAMA WELDING CERTIFICATION EXAM-
QUESTION PRACTICE EXAM WITH THE
CORRECT ANSWER AND RATIONALE FOR
EACH QUESTION.
Which welding process uses a continuously fed consumable
wire electrode and shielding gas?
A. GTAW
B. GMAW
C. SMAW
D. SAW
Correct Answer: B. GMAW
Rationale: Gas Metal Arc Welding uses a continuously fed wire
electrode and normally employs an external shielding gas.
Which welding process commonly uses a tungsten electrode
that does not melt during welding?
A. FCAW
,B. SMAW
C. GTAW
D. GMAW
Correct Answer: C. GTAW
Rationale: Gas Tungsten Arc Welding uses a nonconsumable
tungsten electrode to establish the arc.
What does SMAW stand for?
A. Shielded Metal Arc Welding
B. Standard Metal Arc Work
C. Shielded Mechanical Arc Welding
D. Steel Metal Arc Welding
Correct Answer: A. Shielded Metal Arc Welding
Rationale: SMAW is the standard abbreviation for Shielded
Metal Arc Welding, commonly called stick welding.
What is the primary purpose of shielding gas in arc welding?
A. Increase electrode length
B. Prevent atmospheric contamination
C. Cool the workpiece
,D. Increase electrical resistance
Correct Answer: B. Prevent atmospheric contamination
Rationale: Shielding gas protects the molten weld pool from
oxygen, nitrogen, and other atmospheric contaminants.
Which gas is commonly used for GTAW of carbon steel?
A. Argon
B. Oxygen
C. Hydrogen
D. Chlorine
Correct Answer: A. Argon
Rationale: Argon is widely used for GTAW because it provides
stable arc characteristics and effective shielding.
What is the function of flux in many welding processes?
A. Remove contaminants and protect the weld
B. Increase base-metal thickness
C. Replace the electrode
D. Reduce joint strength
Correct Answer: A. Remove contaminants and protect
the weld
, Rationale: Flux can remove oxides and other impurities while
producing shielding compounds that protect the weld pool.
Which welding process uses a flux-coated electrode?
A. SMAW
B. GTAW
C. GMAW
D. PAW
Correct Answer: A. SMAW
Rationale: SMAW electrodes have a coating that produces
shielding gases and slag as the electrode melts.
What is welding current measured in?
A. Volts
B. Amperes
C. Ohms
D. Watts per foot
Correct Answer: B. Amperes
Rationale: Welding current is measured in amperes (amps),
which strongly affects heat input and penetration.
Welding voltage is measured in:
QUESTION PRACTICE EXAM WITH THE
CORRECT ANSWER AND RATIONALE FOR
EACH QUESTION.
Which welding process uses a continuously fed consumable
wire electrode and shielding gas?
A. GTAW
B. GMAW
C. SMAW
D. SAW
Correct Answer: B. GMAW
Rationale: Gas Metal Arc Welding uses a continuously fed wire
electrode and normally employs an external shielding gas.
Which welding process commonly uses a tungsten electrode
that does not melt during welding?
A. FCAW
,B. SMAW
C. GTAW
D. GMAW
Correct Answer: C. GTAW
Rationale: Gas Tungsten Arc Welding uses a nonconsumable
tungsten electrode to establish the arc.
What does SMAW stand for?
A. Shielded Metal Arc Welding
B. Standard Metal Arc Work
C. Shielded Mechanical Arc Welding
D. Steel Metal Arc Welding
Correct Answer: A. Shielded Metal Arc Welding
Rationale: SMAW is the standard abbreviation for Shielded
Metal Arc Welding, commonly called stick welding.
What is the primary purpose of shielding gas in arc welding?
A. Increase electrode length
B. Prevent atmospheric contamination
C. Cool the workpiece
,D. Increase electrical resistance
Correct Answer: B. Prevent atmospheric contamination
Rationale: Shielding gas protects the molten weld pool from
oxygen, nitrogen, and other atmospheric contaminants.
Which gas is commonly used for GTAW of carbon steel?
A. Argon
B. Oxygen
C. Hydrogen
D. Chlorine
Correct Answer: A. Argon
Rationale: Argon is widely used for GTAW because it provides
stable arc characteristics and effective shielding.
What is the function of flux in many welding processes?
A. Remove contaminants and protect the weld
B. Increase base-metal thickness
C. Replace the electrode
D. Reduce joint strength
Correct Answer: A. Remove contaminants and protect
the weld
, Rationale: Flux can remove oxides and other impurities while
producing shielding compounds that protect the weld pool.
Which welding process uses a flux-coated electrode?
A. SMAW
B. GTAW
C. GMAW
D. PAW
Correct Answer: A. SMAW
Rationale: SMAW electrodes have a coating that produces
shielding gases and slag as the electrode melts.
What is welding current measured in?
A. Volts
B. Amperes
C. Ohms
D. Watts per foot
Correct Answer: B. Amperes
Rationale: Welding current is measured in amperes (amps),
which strongly affects heat input and penetration.
Welding voltage is measured in:
