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Mechanic Diesel
Mechanic Diesel Set-1
Arc and Gas Welding
14

Arc and Gas Welding MCQ with Answers

14) Which quenching media applied in the flame hardening process?

Still air

Oil bath

Brine solution bath

Water spray

Answer is:

Water spray

Arc and Gas Welding MCQ with Answers

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Related Arc and Gas Welding MCQ with Answers

15) What is the purpose of hardening?

Increase ductility

Increase malleability

Increase strength

Increase brittleness

Answer is:

Increase strength

16) What is the purpose of annealing?

Improve hardness

Improve machinability

Improve brittleness

Improve weldability

Answer is:

Improve machinability

17) What is the advantage of AC arc welding machine?

More initial cost

Freedom from arc blow

More maintenance cost

Un suitable for non ferrous metal

Answer is:

Freedom from arc blow

18) What is the advantage of using rectifier set in arc welding machine?

Suitable for all ferrous and non-ferrous

Initial cost is lower

Maintenance cost in less

Not special safety precaution required

Answer is:

Suitable for all ferrous and non-ferrous

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