1000+ Engineering Materials Objective Questions and Answers Pdf - 1

Question: 1

Toughness of a material means

(A) machinability

(B) stress relieving

(C) fatigue resistance

(D) strength

Ans: D

strength

Question: 2

Aluminium alloys for pressure die casting

(A) must be light

(B) must have iron as one of the constituents

(C) must not be free from hot shortness

(D) must possess considerable fluidity

Ans: D

must possess considerable fluidity

Question: 3

Galvanizing is generally done on

(A) non metallic substances

(B) non ferrous metals

(C) low carbon steels

(D) cast irons

Ans: C

low carbon steels

Question: 4

Muntz metal contains

(A) copper-aluminium

(B) copper-tin

(C) copper-zinc

(D) copper-nickel

Ans: C

copper-zinc

Question: 5

The phenomenon of weld decay is associated with

(A) stainless steels

(B) aluminium alloys

(C) manganese steels

(D) cast iron

Ans: A

stainless steels

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