Civil Engineering - Water Supply Engineering

21. 

According to Kuichling's formula, fire demand in litres per minute for a population of P thousands, is

A. 3182 P
B.
C. 4637 P [1 - 0.01 P]
D. 5663 P.

Answer: Option A

Explanation:

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

22. 

The maximum permissible nitrites in public water supplies, is

A. Nil
B. 0.5 P.P.M.
C. 1.0. P.P.M.
D. 1.5 P.P.M.
E. 200 P.P.M.

Answer: Option A

Explanation:

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

23. 

A high velocity of wash water is required for

A. rapid gravity filter with strainers
B. rapid gravity filter without strainers
C. slow sand filter with strainers
D. slow sand filter without strainers
E. none of these.

Answer: Option B

Explanation:

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

24. 

In distribution pipes, drain valves are provided at

A. lower point
B. higher point
C. junction points
D. any where.

Answer: Option A

Explanation:

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

25. 

Corrosion of well pipes may not be reduced by

A. reducing the draw down and the pumping rate
B. reducing the flow velocity
C. using thicker pipes
D. using screens having larger area of openings
E. none of these.

Answer: Option D

Explanation:

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