Water Supply Engineering - Water Supply Engineering objective questions and answers


21.  Reverse osmonics process is used for


   A. Desalinization

   B. Fluoridation

   C. Distillation

   D. Freezing


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A. Desalinization

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22.  The starch iodide test is performed to test


   A. Residual bromine

   B. Residual iodine

   C. Residual chlorine

   D. Residual CO2


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C. Residual chlorine

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23.  Field of a well is


   A. The maximum amount of water available

   B. Water available continuously for one hour

   C. Water that can be drawn in 24 hours

   D. The maximum quantity of water that can be continuously drawn with fixed depression


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D. The maximum quantity of water that can be continuously drawn with fixed depression

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24.  Potassium permanganate is used for


   A. Reducing hardness

   B. Reducing acidity

   C. Improving colour

   D. De-chlorination


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D. De-chlorination

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25.  Air binding in rapid sand filters is caused due to


   A. High Pressure

   B. Atmospheric pressure

   C. Negative pressure

   D. Excessive turbidity


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C. Negative pressure

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