Multiple Choice
Why is an inert shielding gas required for GTA welding?
A) To keep the air away from the hot tungsten and molten weld metal
B) To help remove the welding fumes to make it easier to see the weld pool
C) To help reduce the UV light that can cause skin burns
D) All of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q22: Tungsten electrodes that contain elements such as
Q23: _ is the time during which the
Q24: Explain how tungsten electrodes are produced.
Q25: _ electrodes have a current-carrying capacity similar
Q26: The improved electron emission of the _
Q28: With _, penetration and bead profile are
Q29: In GTAW, the arc temperature is around
Q30: Flowmeters measure the flow rate of a
Q31: How must tube- and ball-type flowmeters be
Q32: The _ protects the molten weld pool,