WELDING AND HEAT TREATMENT - Practice Mode

1) Which is the case hardening process?

Tempering Annealing Normalising Nitriding

Correct Answer: Nitriding

2) Which gas flame used for under water gas cutting of steel?

Oxy - coal gas flame Oxy - hydrogen gas flame Oxy - acetylene gas flame Oxy - liquid petroleum gas flame

Correct Answer: Oxy - hydrogen gas flame

3) What is the Quenching media of normalising?

Water spray Open air Oil bath Water bath

Correct Answer: Open air

4) What is the Quenching media of alloy steel in hardening process?

Water spray Open air Oil bath Water bath

Correct Answer: Oil bath

5) Which type of physical transformation takes place during arc welding process?

Colour transfer Metal transfer Current transfer Heat transfer

Correct Answer: Metal transfer

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