Top 550+ Solved Building Materials MCQ Questions Answer
Q. A limestone found in seams of great thickness in non-crystalline texture with earthy appearance, is called
a. granular limestone
b. compact limestone
c. magnesium limestone
d. lankar
Q. The process of mixing clay, water and other ingredients to make bricks, is known as
a. tempering
b. pugging
c. kneading
d. moulding
Q. The compound responsible for the initial setting of cement, is
a. tri-calcium aluminate
b. tetra-calcium alumino ferrite
c. both (a) and (b)
d. none of these
Q. Eminently hydraulic lime is one in which the percentage of silica, alumina and iron oxide is
a. 5 to 10%
b. 10 to 25%
c. 25 to 30%
d. 30 to 40%
Q. The time required for seasoning of timber in kilm seasoning is
a. 2 to 5 days
b. 5 to 10 days
c. 10 to 20 days
d. 20 to 40 days
Q. The shrinkage of concrete
a. is proportional to contents of cement
b. is directly proportional to water contents at the time of mixing
c. increases with increase in the percentage of concrete
d. all of the above
Q. The expansion in Portland cement can be tested by
a. fineness test
b. soundness test
c. setting time test
d. normal consistency test
Q. The hapd hardening Portland cement is obtained by
a. grinding the clinker to a high degree of fineness
b. adding calcium sulphate to the mixture
c. adding gypsum after grinding
d. burning the mixture at a lower temperature
Q. The percentage of alumina and silica in good fire clay vary respectively is
a. 25, 75
b. 30, 70
c. 35, 65
d. All of these
Q. The proportions of lime and sand in the mortar normally used in brick construction are
a. 1 : 2
b. 1 : 4
c. 1 : 6
d. 1 : 8