ARC AND GAS WELDING - Practice Mode

Improve hardness Improve machinability Improve brittleness Improve weldability

Correct Answer: Improve machinability

More initial cost Freedom from arc blow More maintenance cost Un suitable for non ferrous metal

Correct Answer: Freedom from arc blow

Suitable for all ferrous and non-ferrous Initial cost is lower Maintenance cost in less Not special safety precaution required

Correct Answer: Suitable for all ferrous and non-ferrous

Motor generator set Engine generator set AC arc welding machine AC welding transformer with a rectifier

Correct Answer: Engine generator set

Brass Cast iron Mild steel High carbon steel

Correct Answer: Brass