Building Materials MCQs

Question 1

The silica is used for preparing

Accepted Answer

all of these.

Answer

silica bricks

Answer

coke oven

Answer

lining for glass furnaces

Question 2

The sequence of refractory materials according to increasing melting points is :

Accepted Answer

Bauxite, Chromite, Dolomite, Magnesia

Answer

Dolomite, Magnesia, Bauxite, Chromite

Answer

Magnesia, Bauxite, Dolomite, Chromite.

Question 3

The high quality refractory materials which contain pure clay are oxides of

Accepted Answer

all of these.

Answer

pure alumina oxide

Answer

pure magnesia oxide

Answer

pure carbides

Question 4

Pick up the metal refractory from the following :

Accepted Answer

All of these.

Answer

Molyblendum

Answer

Tungsten

Answer

Zicronium

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

lronoxide

Answer

Magnesia.

Question 6

Porcelain is used as:

Accepted Answer

reactor chambers

Answer

sanitary wares

Answer

electric insulators

Answer

storage vessels

Question 7

Pick up the correct statement from the following :

Accepted Answer

The low voltage porcelain is prepared by dry process

Answer

The low voltage porcelain is prepared by wet process

Answer

The high voltage porcelain is prepared by dry process

Answer

None of the above.

Question 8

The low voltage porcelain is mainly used for

Accepted Answer

All of these.

Answer

switch block

Answer

insulating tubes

Answer

lamp sockets

Question 9

The presence of sand in brick earth prevents :

Accepted Answer

warping of bricks

Answer

cracking of bricks

Answer

shrinkage of bricks

Answer

none of these.