Water Supply Engineering - Water Supply Engineering objective questions and answers


11.  Copper sulphate is the most common chemical used for controlling


   A. Bacteria

   B. Algae

   C. Silt

   D. Mineral water


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B. Algae

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12.  The ratio of total capacity and dead storage is kept


   A. 8

   B. 6

   C. 4

   D. 3


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C. 4

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13.  The strainer tubewell is unsuitable for


   A. Coarse gravels

   B. Fine sandy strata

   C. Clean gravels

   D. None of the above


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B. Fine sandy strata

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14.  The specific retention is least in case of


   A. Clay

   B. Sand

   C. Coarse gravel

   D. Silt


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C. Coarse gravel

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15.  The capability of a soil mass of full width and depth to transmit water, is known


   A. Porosity

   B. Permeability

   C. Transmissibility

   D. None of the above


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B. Permeability

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