Building Materials - Civil Engineering Questions and Answers

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The process of mixing clay, water and other ingredients to make brick is known as

Kneading

Moulding

Pugging

Drying

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Which of the following cements contains maximum percentage of dicalcium silicate?

Ordinary Portland cement

Low heat cement

Rapid hardening cement

Sulphate resisting cement

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Cast iron

Is obtained by purifying pig iron

Is manufactured in required shapes

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

All the above

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Soundness test of cement determines

Quality of free lime

Ultimate strength

Durability

Initial setting

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Which of the following cements is suitable for use in massive concrete structures such as large dams?

Ordinary Portland cement

Low heat cement

Rapid hardening cement

Sulphate resisting cement

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The internal size of mould used in brick preparation is

Equal to the size of a fully burnt brick

Smaller than the size of a fully burnt brick

Greater than the size of a fully burnt brick

None of the above

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The stretcher bond in brick masonry can be used only when the thickness of wall is

90 mm

180 mm

190 mm

280 mm

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The slump recommended for mass concrete is about

25 mm to 50 mm

50 mm to 100 mm

100 mm to 125 mm

125 mm to 150 mm

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Second class bricks

Are of dark brown color

Produce a metallic sound when struck

Are well burnt

Are under burnt