7000+ Welding Metallurgy MCQ Questions and Answers - 2

Question: 6

Thermit welding is a form of _____ welding.

(A) resistance

(B) fusion

(C) arc

(D) gas

Question: 7

Round bars are joined by _____ welding process.

(A) seam

(B) spot

(C) projection

(D) none of these

Question: 8

Plasma is a type of ionised gas. In plasma arc welding process, shielding gas used is

(A) carbon monoxide

(B) carbon dioxide

(C) oxygen

(D) argon

Question: 9

Electrode is consumed in the _____ welding.

(A) arc

(B) gas

(C) tungsten inert gas

(D) thermit

Question: 10

Metals like copper and brass are welded using ____ flame.

(A) oxidising

(B) neutral

(C) carburising

(D) none of these