BUILDING MATERIALS QUIZ

Hydraulic lime is obtained by

Burning of kankar

Adding water to quick lime

Burning of lime stone

Calcination of pure clay

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Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth?

Alkalies and magnesium

Silica and alkalies

Lime stone and alumina

Alumina and iron

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Plastic asphalt is

A mixture of cement and asphalt

A refinery product

A natural asphalt

Used as a water proofing layer over roof

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Soundness of cement is tested by

Vicat's apparatus

None of these

Compressive strength testing apparatus

Le-chatelier apparatus

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Paints with white lead base are suitable for painting of

Both wood work and iron work

Iron work

None of these

Wood work

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Second class bricks

Are of dark brown color

Produce a metallic sound when struck

Are well burnt

Are under burnt

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Glazing of clay products, is done

All listed here

To protect them from corrosive action

To improve their appearance

To protect them from atmospheric effect

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The lime which contains mainly calcium oxide and slacks with water, is

Quick lime

Poor lime

Hydraulic lime

Fat lime

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Fibre glass

All listed here

Is shock proof and fire retardant

Retains heat-longer

Has a higher strength to weight ratio

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Brass is an alloy of

Zinc and nickel

Tin and silver

Zinc and lead

Copper and zinc

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