WELDING AND HEAT TREATMENT - Quiz

1) Which type of thread is used in acetylene gas cylinder?

Single Start thread Multi Start thread Right hand thread Left hand thread

2) Which one is the heat treatment process?

Casting Machining Welding Annealing

3) What is the purpose of hardening?

Increase ductility Increase malleability Increase strength Increase britlenesss

4) 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

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

Suitable for all ferrous and non-ferrous Initial cost is higher Maintenance cost is more Special safety precaution required