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Welder
WELDABILITY OF STEEL
Set 13
Set 13
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Which test indicates the hardness of a metal?
A
Brinell test
B
Tensile test
C
Charpy izod test
D
Ultrasonic inspection
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What type of preheating is done only at the portions to be welded?
A
Full preheating
B
Local preheating
C
Direct preheating
D
Indirect preheating
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Which type of polarity is used in welding non ferrous metals?
A
AC Transformer
B
Reverse polarity
C
Straight polarity
D
DC Motor generator
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Which type of arc does not have control on the molten pool?
A
Long arc length
B
Short arc length
C
Normal arc length
D
Too short arc length
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Which of the following produces unstable arc?
A
Long arc length
B
Short arc length
C
Normal arc length
D
Too long arc length
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