GAS METAL ARC WELDING - Practice Mode

1) Which heat treatment process is employed to remove brittleness in a chisel?

Annealing Hardening Tempering Normalising

Correct Answer: Tempering

Explanation:

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2) What is the operation of heating steel to specific temperature and cooling suddenly?

Annealing Hardening Tempering Quenching

Correct Answer: Quenching

3) What is the main purpose of 'Normalising' steel?

To control hardness To prevent cracking To make welding operation easier To produce fine grain of uniform structure

Correct Answer: To produce fine grain of uniform structure

4) Which heat treatment process, if material is softened and suitable for machining?

Annealing Tempering Normalising Case hardening

Correct Answer: Annealing

5) What is the name of heat treatment process where the steel is reheated to a suitable temperature below the critical point (heating) to improve the toughness and ductility?

Annealing Hardening Tempering Normalising

Correct Answer: Tempering

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