Building Materials MCQs

Question 1

Ultimate strength to cement is provided by

Accepted Answer

Di-calcium silicate

Answer

Tricalcium silicate

Answer

Tr-calcium aluminate

Answer

Tetra calcium alumino ferrite.

Question 2

To retard the initial setting time of cement, the compound responsible, is

Accepted Answer

Gypsum

Answer

Tricalcium silicate

Answer

Di-calcium silicate

Answer

Tri calcium aluminate.

Question 3

The compound of Portland cement which reacts immediately with water and also sets first is

Accepted Answer

Tr-calcium aluminate

Answer

Tr-calcium silicate

Answer

Di-calcium silicate

Answer

Tetra calcium alumino ferrite.

Question 4

The commonly used raw material in the manufacture of cement, is

Accepted Answer

lime stone

Answer

slate

Answer

sand stone

Answer

basalt,

Question 5

The compound of Portland cement which contributes to the strength after two to three years is

Accepted Answer

Di-calcium silicate

Answer

Tricalcium silicate

Answer

Tricalcium aluminate

Answer

Tetracalcium alumino ferrite.

Question 6

Rapid hardening cement attains early strength due to

Accepted Answer

larger proportion of lime grounded finer than normal cement

Answer

lesser proportion of lime grounded coarser than normal cement

Answer

lesser proportion of lime grounded finer than normal cement

Answer

larger proportion of lime grounded coarser than normacement

Question 7

Portland cement manufactured from pure white chalt. and clay but free from iron-oxide, is known as

Accepted Answer

white cement

Answer

quick setting cement

Answer

rapid hardening cement

Answer

all the above.

Question 8

Portland pozzolana cement possesses

Accepted Answer

all the above.

Answer

higher resistance to chemical attack

Answer

lower heat of hydration

Answer

lower shrinkage on drying

Question 9

The percentage of water for normal consistency, is

Accepted Answer

15% to 25%

Answer

5% to 15%

Answer

10% to 25%

Answer

20% to 30%