SENSE Level 1 Certification Test Module
7: GTAW Questions and Answers |
Latest Version | 2024/2025 | Correct &
Verified
What is the primary function of the tungsten electrode in GTAW?
a) To carry the electrical current to the base metal.
b) To act as a filler metal for the weld.
c) To provide shielding for the weld.
d) To regulate the temperature of the weld pool.
✔✔ a) To carry the electrical current to the base metal.
What type of shielding gas is most commonly used in GTAW?
a) Oxygen
b) Carbon dioxide
c) Argon
d) Nitrogen
✔✔ c) Argon
1
,What is the purpose of the shielding gas in GTAW?
a) To cool the welding area.
b) To protect the weld from contamination and oxidation.
c) To increase the welding speed.
d) To improve weld strength.
✔✔ b) To protect the weld from contamination and oxidation.
In GTAW, what is the effect of using too high of an electrode diameter?
a) It may cause excessive spatter.
b) It can create too large of a heat zone, leading to distortion.
c) It may lead to incomplete fusion.
d) It helps to create a smaller, more precise weld.
✔✔ b) It can create too large of a heat zone, leading to distortion.
What is the typical polarity used in GTAW?
a) Direct current, electrode positive (DCEP)
b) Alternating current (AC)
c) Direct current, electrode negative (DCEN)
2
, d) Reverse polarity
✔✔ c) Direct current, electrode negative (DCEN)
What is the main advantage of using AC in GTAW?
a) It provides deeper penetration.
b) It reduces heat buildup on the tungsten electrode.
c) It increases arc stability.
d) It prevents contamination of the weld pool.
✔✔ b) It reduces heat buildup on the tungsten electrode.
In GTAW, what is the purpose of the filler rod?
a) To maintain arc length.
b) To provide additional material for the weld.
c) To carry the electrical current.
d) To cool the welding area.
✔✔ b) To provide additional material for the weld.
What type of materials is GTAW most commonly used for?
3
7: GTAW Questions and Answers |
Latest Version | 2024/2025 | Correct &
Verified
What is the primary function of the tungsten electrode in GTAW?
a) To carry the electrical current to the base metal.
b) To act as a filler metal for the weld.
c) To provide shielding for the weld.
d) To regulate the temperature of the weld pool.
✔✔ a) To carry the electrical current to the base metal.
What type of shielding gas is most commonly used in GTAW?
a) Oxygen
b) Carbon dioxide
c) Argon
d) Nitrogen
✔✔ c) Argon
1
,What is the purpose of the shielding gas in GTAW?
a) To cool the welding area.
b) To protect the weld from contamination and oxidation.
c) To increase the welding speed.
d) To improve weld strength.
✔✔ b) To protect the weld from contamination and oxidation.
In GTAW, what is the effect of using too high of an electrode diameter?
a) It may cause excessive spatter.
b) It can create too large of a heat zone, leading to distortion.
c) It may lead to incomplete fusion.
d) It helps to create a smaller, more precise weld.
✔✔ b) It can create too large of a heat zone, leading to distortion.
What is the typical polarity used in GTAW?
a) Direct current, electrode positive (DCEP)
b) Alternating current (AC)
c) Direct current, electrode negative (DCEN)
2
, d) Reverse polarity
✔✔ c) Direct current, electrode negative (DCEN)
What is the main advantage of using AC in GTAW?
a) It provides deeper penetration.
b) It reduces heat buildup on the tungsten electrode.
c) It increases arc stability.
d) It prevents contamination of the weld pool.
✔✔ b) It reduces heat buildup on the tungsten electrode.
In GTAW, what is the purpose of the filler rod?
a) To maintain arc length.
b) To provide additional material for the weld.
c) To carry the electrical current.
d) To cool the welding area.
✔✔ b) To provide additional material for the weld.
What type of materials is GTAW most commonly used for?
3
