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Welder
Welder Set-1
Welding Techniques
38

Welding Techniques MCQ with Answers

38) What happens if the root gap is lesser than one sixth of plate thickness?

More chances of distortion

More penetration will result

Likely defects like blowhole, porosity

Base metal not fused till the bottom of joint

Answer is:

Base metal not fused till the bottom of joint

Welding Techniques MCQ with Answers

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Related Welding Techniques MCQ with Answers

39) Which arc length produces popping sound?

Long arc length

Short arc length

Normal arc length

Too long arc length

Answer is:

Short arc length

40) What arc length should be used to reduce the spatter?

Long arc length

Short arc length

Normal arc length

Too long arc length

Answer is:

Normal arc length

41) 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

Answer is:

Excess spatters and poor penetration

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

Crack

Crater

Pin hole

Blow hole

Answer is:

Crater

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