Civil Engineering :: Building Materials
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When a brick is immersed in water for 24 hours and then dried, if
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In arches, stratified stones are placed so that their planes are
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Pick up the correct statement from the following:
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Pick up the correct characteristic of Pyroxene from the following:
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For sanitary pipes and chemical stonewares,
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The steel used for rails under heavy traffic and on sharp curves, is
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The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick
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Snowcrete is one of the patent forms of
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The usual percentages of clay and metal in cermet are :
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A.
no grey or white deposits appear on the surface, the brick is free from soluble salts |
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B.
10 per cent surface is covered with grey or white deposits, the brick has slight efflorescence |
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C.
50 per cent surface is covered with grey or white deposits, the brick has serious efflorescence |
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D.
All the above. |
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A.
Acid test is done to find out the weathering quality of stones |
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B.
Attrition test is done to find out the rate of wear of stones which are used in road construction |
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C.
Crushing test is done to find out the compressive strength of the stone |
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D.
Impact test is done to determine toughness of a stone |
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E.
All the above. |