Engineering Materials & Metallurgy Questions and Answers Pdf - 1

Question: 1

Major constituent of phosphor bronze is

(A) Copper

(B) Lead

(C) Zinc

(D) Aluminium

Question: 2

Which of the following material is generally not used as deoxidizer for producing killed steel?

(A) Aluminium

(B) Copper

(C) Ferro-silicon

(D) Ferro-manganese

Question: 3

The stainless steels owe their resistance to corrosion to the presence of

(A) Sulphur

(B) Manganese

(C) Carbon

(D) Chromium

Question: 4

Plasticizers are added to plastic compounds to

(A) Improve softness and flexibility

(B) Improve resistance to alkalies

(C) Improve resistance to acids

(D) Provide a protective layer

Question: 5

Which metal has the highest melting point?

(A) Stainless steel

(B) Gold

(C) Chromium

(D) Antimony