Building Materials MCQs

Question 1

Due to attack of dry rot, the timber

Accepted Answer

Reduces to powder

Answer

Cracks

Answer

Shrinks

Answer

None of these

Question 2

Rapid hardening cement attains early strength due to

Accepted Answer

Larger proportion of lime grounded finer than normal cement

Answer

Lesser proportion of lime grounded coarser than normal cement

Answer

Lesser proportion of lime grounded finer than normal cement

Answer

Excess percentage of gypsum

Question 3

The yield strength and tensile strength of low carbon steel may be improved by the addition of

Accepted Answer

Vanadium

Answer

Manganese

Answer

Chromium

Answer

Nickel

Question 4

Commonly used thinner in

Accepted Answer

All the above

Answer

Lacquer paints, is alcohol

Answer

Cellulose paints is ethyl acetate

Answer

Oil paints, is naphtha

Question 5

Which of the following trees yields hard wood?

Accepted Answer

Shishum

Answer

Deodar

Answer

Chir

Answer

Pine

Question 6

The practical limit of moisture content achieved in air drying of timber is

Accepted Answer

15%

Answer

5%

Answer

25%

Answer

35%

Question 7

Which of the following represents a metamorphic rock? (i) Slate (ii) Shale (iii) Quartzite

Accepted Answer

Both (i) and (iii)

Answer

Only (iii)

Answer

Both (ii) and (iii)

Answer

All (i), (ii) and (iii)

Question 8

The rocks formed from molten magma, are called

Accepted Answer

igneous rocks

Answer

sedimentary rocks

Answer

metamorphic rocks

Answer

none of these.

Question 9

Rocks formed due to alteration of original structure due o heat and excessive pressure, are called

Accepted Answer

metamorphic rocks

Answer

sedimentary rocks

Answer

igneous rocks

Answer

none of these.