7000+ Metallurgy Solved MCQS Questions Pdf - 1

Question: 1

Transverse cracking occurs due to the presence of

(A) Sulphur

(B) Silicon

(C) Phosphorous

(D) Nitrogen

Question: 2

Curie-Weiss law is obeyed by

(A) Antiferromagnetic materials

(B) Paramagnetic materials

(C) Ferromagnetic materials below Curie temperature

(D) Ferromagnetic materials above Curie temperature

Question: 3

Which of the following materials has the highest specific heat?

(A) Water

(B) Polyethylene

(C) Concrete

(D) Aluminium

Question: 4

Surface hardness of materials is improved by

(A) Process annealing

(B) Tempering

(C) Carburising

(D) Spheroidising

Question: 5

Total solidification time is defined as which one of the following?

(A) Time to give up the heat of fusion

(B) Time between solidification and cooling to room temperature

(C) Time between pouring and cooling to room temperature

(D) Time between pouring and complete solidification