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Refrigeration and Air Conditioning Technician
WELDING
Set 4
Set 4
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Q10339
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Which valve is closed first while extinguishing flame in gas welding process?
A
Acetylene
B
Hydrogen
C
Oxygen
D
Air
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What is applied to find the leakage on acetylene gas connection?
A
Soap bubbles
B
Halide torch
C
LPG torch
D
By smell
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Which component secures the hose with regulator union in gas welding set?
A
Steel wire
B
Hose clamp
C
Fibre clip
D
Iron chain
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How the cylinders of gas welding set are secured in trolley?
A
By cable
B
Using chain
C
Tightened with rope
D
Tied up with belt
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Which is adjusted to the size of electrode in welding process?
A
Conductor
B
Thickness
C
Length
D
Ampere
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