1000+ Construction Materials Objective Questions & Answers - 1

Question: 1

Limestone used for manufacture of cement is

(A) compact limestone

(B) granular limestone

(C) magnesium limestone

(D) kankar

Ans: D


Question: 2

Red colour of brick is due to the presence of

(A) iron oxide

(B) manganese

(C) silica

(D) lime

Ans: A

iron oxide

Question: 3

The ore from which aluminium is extracted economically is

(A) bauxite

(B) corundum

(C) kryolite

(D) kaolin

Ans: A


Question: 4

Which one of the following is not a variety of brass

(A) brown brass

(B) red brass

(C) yellow brass

(D) white brass

Ans: A

brown brass

Question: 5

The process of heating limestone to redness is termed as

(A) calcination

(B) carbonation

(C) oxidation

(D) hydration

Ans: A


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