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Building Materials

Building Materials
Pig iron is manufactured from the ores by

Smelting
Calcination and roasting
Dressing
All of these

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Building Materials
A pug mill is used for

Moulding brick earth
Providing brick earth
Tempering brick earth
Softening brick earth

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Building Materials
Spirit varnish generally consists of

Pigment and synthetic resin
Alcohol, wax and turpentine
Oil, wax and resin
Spirit and shellac

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Building Materials
Excess of silica in brick earth results in

enhancing the impermeability of bricks
None of these
loss of cohesion
cracking and warping of bricks

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Building Materials
The preparation of surface of stone to obtain plain edges or to obtain stones of required size and shape is known as

Seasoning of stones
Dressing of stones
Quarrying of stones
Blasting of stones

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Building Materials
The fire clay contains pure

Lime
Hydrated aluminium silicate
Magnesium
Oxide of iron

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