Building Materials MCQs

Question 1

Second class bricks

Accepted Answer

Produce a metallic sound when struck

Answer

Are of dark brown color

Answer

Are well burnt

Answer

Are under burnt

Question 2

The coefficient of hardness of stones used in road work should be greater than

Accepted Answer

17

Answer

10

Answer

12

Answer

15

Question 3

The normal consistency of ordinary Portland cement is about

Accepted Answer

30%

Answer

10%

Answer

20%

Answer

40%

Question 4

The rock generally used for roofing, is

Accepted Answer

Slate

Answer

Granite

Answer

Basalt

Answer

Pumice

Question 5

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

Accepted Answer

Gypsum

Answer

Tri-calcium silicate

Answer

Di-calcium silicate

Answer

Tri-calcium aluminate

Question 6

Distemper is

Accepted Answer

A paint consisting of powdered chalk, pigments and water

Answer

A water proofing agent

Answer

A paint consisting of colored cement and water

Answer

A drying agent

Question 7

Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is

Accepted Answer

90°

Answer

0°

Answer

30°

Answer

45°

Question 8

Duco paints are

Accepted Answer

Cellulose paints

Answer

Plastic paints

Answer

Emulsion paints

Answer

Oil paints

Question 9

During pudding

Accepted Answer

All the above

Answer

Molten metal is kept clear of the fuel

Answer

Carbon is converted into carbonic acid gas

Answer

Silicon forms a slag