Building Materials MCQs

Question 1

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Acid test is done to find out the weathering quality of stones

Answer

Attrition test is done to find out the rate of wear of stones which are used in road construction

Answer

Crushing test is done to find out the compressive strength of the stone

Question 2

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38%

Answer

The bulking of fine sand is more than that of coarse sand

Answer

If the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing

Question 3

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer

Answer

Cupola furnace is used for the manufacture of cast iron

Answer

Red short iron is of no value for welding purpose

Question 4

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Alexander Parkes, a Scottish chemist prepared a hard material by mixing camphor and alcohol with nitro cellulose and called it, as Parkesite

Answer

Dr. L. Bakeland, a Belgian scientist prepared a product known as Bakelite

Answer

Pollark, an Austrian scientist prepared a substance from urea and formaldehyde and called it Plastic

Question 5

Pick up the constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, from the following:

Accepted Answer

Alumina

Answer

Lime

Answer

Iron-oxide

Answer

Magnesia

Question 6

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Blistering may be cured by applying water paint finished with oil paint dried with a little copal varnish

Answer

Cracked paints may be cured by removing paint and giving a fresh coat of paint

Answer

Crawling paints may be cured by sand preparing the surface and giving a fresh coat with plenty of turps

Question 7

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Blisters in the finished wrought iron, are caused due to the reaction between oxide of iron and carbon

Answer

The edges of a finished wrought iron are rough due to red shortage

Answer

Pig iron (charcoal) is manufactured from magnetic ore (Fe3O4)

Question 8

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Bull's trench kiln a trench excavated in ground

Answer

Hoffman's kiln is constructed over ground

Answer

Tunnel Kiln is constructed as a tunnel

Question 9

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Catalysts are added to assist and accelerate the hardening of resin

Answer

The fillers are inert materials and they impart strength and hardness

Answer

Fibrous fillers increase thermal resistance