Building Materials MCQs

Question 1

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Rusting is caused due to combined action of air, moisture and carbon dioxide

Answer

During rusting, first ferrous bicarbonates are formed

Answer

On further oxidation ferrous bicarbonates get converted to ferric bicarbonates

Question 2

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Slaked lime contains calcium hydroxide

Answer

Quick lime contains calcium oxide

Answer

Slaked lime may be obtained from quick lime

Question 3

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Soft stones are required for carving

Answer

Light stones are required for arches

Answer

Hard stones are required to stand high pressure

Question 4

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Solder material is an alloy which melts at a temperature above 400°C

Answer

Brazing is done at temperature above 600°C to 1100°C

Answer

Brazing joint is stronger than the solder joint

Question 5

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Steel produced by open hearth process is milder than that obtained by the Bessemer process

Answer

Engineers prefer open hearth steel for structural purpose as it is more homogenous

Answer

Basic Bessemer process is suitable for converting poor ore containing a large proportion of sulphur and phosphorus into steel

Question 6

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

Styrene resin is produced from ethylene which is made from petroleum

Answer

Styrene resin is light in weight

Answer

Styrene resin transmits ultraviolet waves of light

Question 7

Pick up the compound responsible for early strength of cement from the following:

Accepted Answer

Tri-calcium silicate

Answer

Tetra-calcium alumino-ferrite

Answer

Tri-calcium aluminate

Answer

Di-calcium silicate

Question 8

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

The average crushing strength of hand moulded bricks is 6000 t/m2

Answer

The average tensile strength of hand moulded brick is 200 t/m2

Answer

The average shearing strength of hand moulded brick is 600 t/m2

Question 9

Pick up the correct statement from the following:

Accepted Answer

All the above

Answer

The distinct plane of division along which a stone can easily be split, is called natural bed of stone

Answer

The natural bed of sedimentary rocks is along the planes of stratification

Answer

The natural bed of igneous rocks is not defined