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Welder
GAS TUNGSTEN ARC WELDING
Set 8
Set 8
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Q13145
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What is the purpose of H.F. unit in TIG welding?
A
To produce the AC
B
To change AC to DC
C
To produce power supply
D
To initiate the arc without touching the electrode on the base metal
Q13146
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Which type of cooling system is used in heavy duty welding operations?
A
Air cooled
B
Oil cooled
C
Gas cooled
D
Water cooled
Q13147
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Which electrode is used in TIG welding process?
A
Zinc electrode
B
Carbon electrode
C
Tungsten
D
Magnesium electrode
Q13148
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What is the device used to show the volume of the inert gas allowed to go to the welding torch in TIG welding?
A
Flow meter
B
CO2 regulator
C
Pressure meter
D
Argon regulator
Q13149
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Which gas is chemically inactive with any metals in hot or cold condition in TIG welding?
A
Argon
B
Oxygen
C
Nitrogen
D
Hydrogen
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