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

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Q. Dry rot

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Q. Which one of the following polymers is obtained from condensation polymerization ?

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Q. The weight of 1 m³ of brick earth, is about

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Q. Pozzolana (or surkhi) is used in lime

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Q. The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called:

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Q. The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called

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Q. In paints, the pigment is responsible for

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Q. The operation of removal of impurities or clay adhering to iron ores, is known as

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Q. If water required for 1 bag of cement is 30 litres, the water cement ratio is :

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Q. The silica is used for preparing

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Q. Wrought iron is manufactured from pig iron by

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Q. Pick up the correct statement from the following:

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Q. Fibre boards can be

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Q. Pick up the correct statement from the following:

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Q. Mastic asphalt is normally used for

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Q. Lime stone is not a

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Q. The size of modular bricks, is

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Q. A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called

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Q. Pig iron is manufactured from the ores by

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