Civil Engineering :: Building Materials
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Softer variety of steel may be obtained by
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Pick up the correct statement from the following:
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Calcination of iron ores is done
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Strength of cement concrete primarily depends upon
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Rapid hardening cement contains
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Bitumen emulsion is
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The cast iron when heated to red heat with powdered red haemetite in an oven for increasing its toughness, is converted to
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Plastic bitumen is generally used for
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Pick up the correct statement from the following:
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A.
The baked earth is called terra-cotta |
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B.
The articles prepared from clay which is burnt at low temperature and cooled down slowly, are called earthen-ware |
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C.
The articles prepared from refractory clays which as mixed with stone and crushed pottery, are called stone ware |
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D.
The articles prepared from fine earthen ware which is white, thin and semi-transparent, are called procelain |
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E.
All the above. |