Civil Engineering - Water Supply Engineering

1. 

While determining the yield of open wells by the pumping test

A. velocity of recharging water, increases with depression head
B. depression head resulting at critical velocity, is called critical depression head
C. working head is generally limited to rd of the critical depression head
D. maximum safe yield of an open well, is expected at critical depression head.

Answer: Option D

Explanation:

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2. 

Increase in population of a rapidly growing city, may be estimated by

A. arithmetical mean method
B. geometrical method
C. incremental increase method
D. graphical comparison method.

Answer: Option B

Explanation:

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3. 

Pick up the correct statement from the following regarding the pressure conduits :

A. Pressure conduits are permitted to run th full
B. Pressure conduits are always laid along down grades
C. The hydraulic gradient line always coincides the invert of the conduit
D. None of these.

Answer: Option D

Explanation:

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4. 

The standard B.O.D. at 20&Deg;C, is taken for the consumption in

A. one day
B. 2 days
C. 3 days
D. 4 days
E. 5 days.

Answer: Option E

Explanation:

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5. 

The superimposed load transmitted to the pipe, is generally evaluated by Bousiness formula

A.
B.
C.
D.

Answer: Option B

Explanation:

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