BUILDING MATERIALS QUIZ

Cast iron

All listed here

Is manufactured in required shapes

May contain 2 to 5 per cent of carbon with other impurities

Is obtained by purifying pig iron

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Wrought iron is used for

Structural works in beams

Columns and struts

Small sized water pipes

None to these

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In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is

Parallel

45°

60°

Right angles

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The pressure acting on the stones in stone masonry construction should be

Along the direction of bedding planes

Perpendicular to the direction of bedding planes

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Portland cement manufactured from pure white chalk and clay but free from iron-oxide, is known as

Rapid hardening cement

White cement

Low heat Portland cement

Quick setting cement

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Duco paints are

Emulsion paints

Oil paints

Cellulose paints

Plastic paints

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Inner part of a timber log surrounding the pitch, is called

None to these

Sapwood

Cambium layer

Heart wood

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The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to

White cast iron

Grey cast iron

Mottled cast iron

Toughed cast iron

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The variety of pig iron used for manufacture of wrought iron, is

White forge pig

Bessemer pig

Mottled pig

Grey or foundry pig

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Jhumb bricks are

Over burnt

None of these

Under burnt

Kutcha

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