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Welder
WELDING TECHNIQUES
Set 3
Set 3
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Q13403
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Which of the following gas is used in TIG welding?
A
Helium
B
Oxygen
C
Hydrogen
D
Carbon dioxide
Q13404
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Which of the accessories should be worn during overhead welding?
A
Helmet
B
Sun glass
C
Hand screen
D
Welding goggles
Q13405
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Which one of the following do not assist fire?
A
Fuel
B
Oxygen
C
Ignition
D
Nitrogen
Q13406
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Which type of polarity is used in aluminium welding?
A
Rectifier set
B
AC Transformer
C
Reverse polarity
D
Straight polarity
Q13407
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What is polarity?
A
Circuit of current
B
Direction of current
C
Open circuit of current
D
Opp direction of current
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