1000+ Materials of Construction Objective Questions & Answers Pdf - 1

Question: 1

Spray dryer for evaporating milk to produce milk powder is made of

(A) cast iron

(B) aluminium

(C) lead lined steel

(D) stainless steel

Ans: D

stainless steel

Question: 2

German silver is an alloy of

(A) silver, nickel and zinc

(B) silver, zinc and aluminium

(C) copper, aluminium and silver

(D) copper, nickel and zinc

Ans: D

copper, nickel and zinc

Question: 3

Duralumin is an alloy of

(A) aluminium and nickel

(B) aluminium, nickel and silicon

(C) aluminium, copper and manganese

(D) none of these

Ans: C

aluminium, copper and manganese

Question: 4

Which metal is protected by the layer of its own oxide?

(A) aluminium

(B) calcium

(C) silver

(D) iron

Ans: A

aluminium

Question: 5

Mercury is transported in metal containers made of

(A) copper

(B) lead

(C) aluminium

(D) iron

Ans: D

iron

Related Questions
Read More Engineering Topics