Water Supply Engineering - Water Supply Engineering objective questions and answers


16.  The main disadvantage of hard water is


   A. High density

   B. More turbidity

   C. Foul smell

   D. Increased soap consumption


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D. Increased soap consumption

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17.  pH value of sea water is usually


   A. 1

   B. Between 3 to 5

   C. Between 5 to 7

   D. Between 8 to 8.3


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D. Between 8 to 8.3

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18.  The cost of production of palatable water is minimum if the water source is a


   A. River

   B. Spring

   C. Ground

   D. Infiltration gallery


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B. Spring

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19.  Non pathologic bacteria cause the following water borne disease,


   A. Cholera

   B. Typhoid

   C. Infectious hepatitis

   D. None of these


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D. None of these

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20.  Underground water is obtained from


   A. Rains

   B. Rivers

   C. Springs

   D. Lakes


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C. Springs

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