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WELDING TECHNIQUES - Practice Mode

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Welder
WELDING TECHNIQUES
Practice Mode

1) What is the indication of wrong polarity in DC welding?

Electrode become red hot Electrode will freeze with the job Excess spatters and poor penetration It will produce edge of plates melted off

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Correct Answer: Excess spatters and poor penetration

Question Details

1) What is the indication of wrong polarity in DC welding?

Electrode become red hot

Electrode will freeze with the job

Excess spatters and poor penetration

It will produce edge of plates melted off

2) How do you name the depression formed at the end of the weld?

Crack Crater Pin hole Blow hole

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Correct Answer: Crater

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2) How do you name the depression formed at the end of the weld?

Crack

Crater

Pin hole

Blow hole

3) Which defect will occur, when the equipment is changed for AC to DC supply in arc welding?

Arc blow Over lap Weld crack Distortion

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Correct Answer: Arc blow

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3) Which defect will occur, when the equipment is changed for AC to DC supply in arc welding?

Arc blow

Over lap

Weld crack

Distortion

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