Welding Metallurgy Objective Questions and Answers Pdf - 1

Question: 1

For welding aluminium in inert gas arc welding, we use

(A) CO₂ and high speed

(B) Straight polarity direct current

(C) Combustible electrode and argon with alternating current

(D) Non combustible electrode with helium and direct current

Question: 2

_____ based alloys are used as filler material in brazing.

(A) Copper

(B) Cadmium

(C) Tin

(D) None of these

Question: 3

A pool of molten metal is used in _____ arc welding.

(A) TIG

(B) MIG

(C) Carbon

(D) Submerged

Question: 4

Oxy-acetylene welding mostly employs the _____ flame.

(A) Neutral

(B) Carburising

(C) Oxidising

(D) Reducing

Question: 5

Electrodes get consumed in ______ welding.

(A) Arc

(B) Resistance

(C) Gas

(D) Thermit