Building materials and Construction. Sheet - 23
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1) Question.
Refractory bricks resist
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2) Question.
Stones used for the construction of retaining walls must be
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3) Question.
Stone used for rubble masonry must be
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4) Question.
Stones used for ornamental work must be
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5) Question.
A stone is rejected if it absorbs water more than
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6) Question.
A good quality stone absorbs water less than
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7) Question.
Good quality stones must
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8) Question.
Laterite is found in
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9) Question.
The rock generally used for roofing, is
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10) Question.
Shingle is
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11) Question.
The specific gravity of marble, is
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12) Question.
The hardest rock is
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13) Question.
The rocks having alumina or clay as their major constituents, are known as
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14) Question.
Black marble is generally found in the district of
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15) Question.
The colous of statuary marble used for sculptor's work, is
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16) Question.
Dolomite is a lime stone which contains carbonate of magnesia upto
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17) Question.
Gniess is obtained form
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18) Question.
Granite mainly composed of quartz and felsper particles, is obtained form
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19) Question.
Laterite is a/an
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20) Question.
Pegmatite is a/an
Answer.Pegmatite is an intrusive igneous rock with extremely large crystals sometimes greater than 10cm. Pegmatites are usually composed of feldspars, quartz and micas but may also contain minerals such as tourmaline (a silicate mineral that contains boron).