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Welder
GAS TUNGSTEN ARC WELDING
Set 7
Set 7
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Q13140
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How heat effected zone is covered and protected from atmospheric contaminations in GTAW?
A
Argon gas
B
Oxygen gas
C
Fuel gas
D
Active gas
Q13141
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What is the use of a little hydrogen added to argon for welding of stainless steel in GTAW process?
A
Improcess heat
B
Improves heat transfer
C
Improves good welding
D
Improves metal property
Q13142
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How molten metal is shielded from the atmospheric contamination as a blanket in GTAW?
A
By using inert gas
B
By using fuel gas
C
By using supportable gas
D
By using fuel and supportable gas
Q13143
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How is the inert gas directed to flow over weld pool, in TIG welding?
A
Through copper nozzle
B
Through brass nozzle
C
Through ceramic nozzle
D
Through metal nozzle
Q13144
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What is the name of the part of TIG torch for holding tungsten electrode?
A
Collet
B
Adaptor
C
Ceramic nozzle
D
Electrode cap
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