Which of the following stone is best suited for construction of piers and abutments of a railway bridge?
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Acrylic sheets
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Wrought iron contains carbon about
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The usual percentages of clay and metal in cermet are:
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Good quality stones must
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Spalling hammer is used for
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In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is
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Chemically, marble is known as
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Geologically, marble is known as
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The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:
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Percentage of silica in a good brick earth lies between
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The percentage of alumina in a good brick earth lies between
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Asbestos . . . . . . . .
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Asbestos . . . . . . . .
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Asbestos cement . . . . . . . .
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Asbestos is
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The standard size of masonry bricks, is
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The stone suitable for rubble masonry should be.
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The filler used in plastic bitumen, is
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Softer variety of steel may be obtained by
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