# Civil Engineering - Water Supply Engineering

### Exercise :: Water Supply Engineering - Section 1

46.

If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is

 A. 1880 kilo litres B. 2880 kilo litres C. 3880 kilo litres D. 4880 kilo litres.

Explanation:

No answer description available for this question. Let us discuss.

47.

The fire demand of a city may be worked out by

 A. Kuichling's formula B. Freeman formula C. Under Writers formula D. Bustan's formula E. All the above.

Explanation:

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48.

Aeration of water is done to remove

 A. odour B. colour C. bacterias D. hardness E. turbidity.

Explanation:

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49.

The yield of a rapid gravity filter as compared to that of slow sand filter, is

 A. 10 times B. 15 times C. 20 times D. 30 times E. 35 times.