Building Materials MCQ Question with Answer

Building Materials MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

Question No : 50
The main constituent of fly-ash, is

Aluminium oxide

Silica

Ferrous oxide

All of these

Question No : 51
Index number expressing the relative sizes of both coarse and fine aggregates, is called

Proportioning of aggregates

Fineness modulus

Grading of aggregates

None of these

Question No : 52
French polish is

Oil paint

Distemper

Spirit varnish

None to these

Question No : 53
Which of the following trees yields hard wood?

Deodar

Chir

Shishum

Pine

Question No : 54
Which of the following is the purest form of iron?

Cast iron

Wrought iron

Mild steel

High carbon steel

Question No : 55
Bitumen felt

Is used as water proofing material

Is used as damp proofing material

Is made from bitumen and hessian fibres

All the above

Question No : 56
Seasoning of timber is done

To make it water proof

To paint its surface

To increase its temperature

To remove water