BUILDING MATERIALS QUIZ

The main function of alumina in brick earth is

To make the brick impermeable

To prevent shrinkage

To make the brick durable

To impart plasticity

TRUE ANSWER : ?
YOUR ANSWER : ?

Study the following statements. (i) Hydraulic lime is suitable for white washing, (ii) Fat lime is suitable for whitewashing, (iii) Hydraulic lime is suitable for making mortar, (iv) Fat lime is suitable for making mortar.

(ii) and (iii)

(i) and (ii)

(i) and (iv)

(iii) and (iv)

TRUE ANSWER : ?
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Whitworth compressed steel is obtained when molten steel is subjected to a pressure of

5 kg/mm²

9 kg/mm²

15 kg/mm²

13 kg/mm²

TRUE ANSWER : ?
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Most commonly used solvent in oil paints, is

Spirit

Petroleum

Coal tar

Turpentine

TRUE ANSWER : ?
YOUR ANSWER : ?

Lime concrete is generally used for

Flooring at ground level

Both (A) and (B)

Wall foundations

Neither (A) nor (B)

TRUE ANSWER : ?
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Lime stone is not a

Aqueous rock

Metamorphic rock

Stratified rock

Sedimentary rock

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The commonly used base for iron and steel work, is

Titanium white

Red lead

White lead

Zinc white

TRUE ANSWER : ?
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The most important tool in brick laying for lifting and spreading mortar and for forming joints is

Scutch

Bolster

Trowel

Square

TRUE ANSWER : ?
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Formula for quick lime, is

CaCO₃

Ca(OH)₂

CO₃CO₂

None to these

TRUE ANSWER : ?
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Brittleness of cold is due to an excess of

Carbon

Phosphorus

Sulphur

Silicon

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