Top 550+ Solved Building Materials MCQ Questions Answer
Q. The setting and hardening of cement paste is mainly due to the hydration and hydrolysis of
a. tri-calcium silicate
b. di-calcium silicate
c. tri-calcium aluminate
d. all of these
Q. The process of adding the required quantity of water to quick lime in order to convert it into hydrated lime, is known as
a. calcination
b. hydration
c. slaking
d. quenching
Q. The fineness of cement is tested by
a. air-permeability method
b. Le-chatelier method
c. Vicat's apparatus
d. all of these
Q. The compressive strength of a good Portland cement and standard sand mortar after 3 days of curing should not be less than
a. 7 MN/m2
b. 11.5 MN/m2
c. 17.5 MN/m2
d. 21 MN/m2
Q. The compressive strength of second elass bricks should bot be less than
a. 7.5 MN/m2
b. 9 MN/m2
c. 10.5 MN/m2
d. 12 MN/m2
Q. The shrinkage of ordinary concrete is about
a. 0.1 to 0.3 mm/m
b. 0.3 to 0.6 mm/m
c. 0.6 to 1.2 mm/m
d. 1.2 to 2.1 mm/m
Q. A limestone containing about 30% of alumina and silica is called
a. granular limestone
b. compact limestone
c. magnesium limestone
d. kankar
Q. The frog of a brick is normally made on its
a. longer face
b. shorter face
c. bottom face
d. top face
Q. The lime which consists almost entirely of calcium oxide, is called
a. poor lime
b. rich lime
c. hydraulic lime
d. limestone
Q. The commonly used lime for works under water or in damp situations is
a. fat lime
b. lean lime
c. feebly hydraulic lime
d. eminently hydraulic lime
Q. The type of bond provided in brick masonry for carrying heavy loads is
a. Single Flemish bond
b. Double Flemish bond
c. English bond
d. Zigzag bond
Q. Blister steel
a. Is obtained by cementation process
b. Is full of fissures and cavities
c. Can be easily welded
d. All the above
Q. Gypsum is a
a. Mechanically formed sedimentary rock
b. Igneous rock
c. Chemically precipitated sedimentary rock
d. Metamorphic rock
Q. Seasoning of timber is done
a. To make it water proof
b. To paint its surface
c. To increase its temperature
d. To remove water