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Polishing

Preheating be...

Question

Preheating before welding is done to

A

Make the steel softer

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B

Prevent plate distortion

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C

Burn away oil, grease etc. from the plate surfaces

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D

Prevent cold cracks

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Solution

The correct option is D Prevent cold cracks
Preheating before welding is done to prevent cold cracks.

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