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Welder
GAS TUNGSTEN ARC WELDING
Set 10
Set 10
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Q13155
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Why argon gas is used in welding of stainless steel welding in TIG welding process?
A
Inert gas protects the weld
B
It helps in melting the electrode
C
It prevents porosity
D
It is cheap
Q13156
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Which welding machine is to be used for welding of aluminium by TIG welding process?
A
AC welding machine
B
DC welding machine
C
AC DC transformer
D
DC transformer
Q13157
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What is the defect caused by high current in TIG welding?
A
Crack
B
Porosity
C
Under cut
D
Lack of penetration
Q13158
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What is the defect while TIG welding if the current is too low?
A
Crack
B
Porosity
C
Under cut
D
Lack of fusion
Q13159
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What is right about DCRP electrode TIG welding ?
A
Improper tungsten size
B
Improper shielding gas flow
C
Improperly prepared tungsten
D
Weld circuit polarity is incorrect
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