1000+ Materials of Construction MCQ Questions and Answers - 1

Question: 1

Hydraulic lime is obtained by

(A) burning kankar

(B) calcinations of pure clay

(C) calcinations of limestone

(D) slaking quicklime

Question: 2

The constituent responsible for setting of hydraulic lime under water is

(A) carbon dioxide

(B) calcium oxide

(C) clay

(D) silica

Question: 3

Gypsum is added in the manufacture of Portland cement to

(A) to decrease grinding time

(B) to enhance the strength of cement

(C) increase setting time of cement

(D) reduce setting time of cement

Question: 4

Which one of the following is not a desirable property of sand?

(A) it should be well graded

(B) it should be hard

(C) it should contain sharp, angular grains

(D) it should be chemically active

Question: 5

Curing of concrete is the process of

(A) keeping the surrounding cool

(B) maintaining satisfactory moisture and temperature for a specific time

(C) bonding the water on the surface

(D) covering the surface with wet gunny bags