1000+ Metallurgy Objective Questions and Answers Pdf - 1

Question: 1

The flux used in brazing is usually

(A) alum

(B) borax

(C) common salt

(D) lime

Question: 2

Highest specific gravity is of

(A) steel

(B) lead

(C) copper

(D) brass

Question: 3

The flux used in blast furnace while melting iron ore is

(A) limestone

(B) sodium chloride

(C) carbon

(D) oxygen

Question: 4

Which of the following element does not impact hardness to steel?

(A) copper

(B) chromium

(C) silicon

(D) nickel

Question: 5

Ferrites are a subgroup of

(A) paramagnetic materials

(B) diamagnetic materials

(C) ferrimagnetic materials

(D) ferromagnetic materials