ARTICLES QUIZ

Quartz sand

Pure gypsum

Granite

Magnesite

Is used as damp proofing material

Is used as water proofing material

Is made from bitumen and hessian fibres

All listed here

8 grades

10 grades

4 grades

2 grades

Tetra calcium alumino ferrite

Di-calcium silicate

Tri-calcium aluminate

Tri-calcium silicate

Deodar wood

Shishum wood

Ply wood

Teak wood

Olive oil

Linseed oil

Acetate of lead

Kerosene oil

Both (i) and (ii)

Both (i) and (iii)

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

Only (i)

Carbon dioxide with carbon forms carbon mono-oxide

Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2

All listed here

Forms carbon dioxide

It has less initial cost

It gives more output of first class bricks

It takes less time for burning

It is suitable when bricks are required in large numbers

Cannot be bent more easily than ordinary wood of same thickness

Has good strength along the panel only

Has greater impact resistance to blows than ordinary wood

Can be spilt in the plane of the panel