Water Supply Engineering - Water Supply Engineering objective questions and answers


46.  Air valves are generally provided in pressure pipes of water supply


   A. At pipe junctions

   B. At summits

   C. At low points

   D. Near service pipes


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B. At summits

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47.  The temporary hardness of water can be removed bye


   A. Boiling

   B. Adding lime

   C. Adding alum

   D. Filteration


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A. Boiling

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48.  Standard process of chlorination of water is done by


   A.. Plain chlorination

   B. Pre chlorination

   C. Post chlorination

   D. Double chlorination


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C. Post chlorination

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49.  For maximum alkalinity of water pH value should be


   A. Zero

   B. 14

   C. Less than 7

   D. 21


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B. 14

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50.  Disinfection of drinking water is done to remove


   A. Odour

   B. Bacterias

   C. Turbidity

   D. Colour


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B. Bacterias

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