Pick up the correct statement from the following : A hydrograph is a plot of dis

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Question
Pick up the correct statement from the following :
Options
A. A hydrograph is a plot of discharge versus time
B. A mass curve is a plot of accumulated flow versus time
C. The mass curve continuously rises
D. The slope of the mass curve at any time is a measure of the inflow rate at that time
E. All the above.

Correct Answer

All the above.

Water Supply Engineering problems

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5. If intensity of rainfall in cm per hour is I, percentage coefficient of run-off is P, area of catchment in square kilometres is A, the total run-off Q, is given by
Options
A. Q = 1.758 x 10² x API
B. Q = 2.758 x 10² x API
C. Q = 2.758 x 10³ x API
D.
E.

6. If d is the diameter of the pipe, p is the total internal pressure, f is the permissible tensile stress and n is the effective of the joint, the thickness t of metal pipe, is
Options
A.
B.
C.
D.
E. none of these.

7. Pick up the correct statement from the following :
Options
A. The amount of rainfall in 24 hours, is known as daily rainfall
B. The amount of rainfall in one year, is known as annual rainfall
C. The rain cycle period in India is taken as 35 years
D. The ratio of the actual rainfall in the year to the normal rainfall at a place, is called index of the wetness
E. All the above.

9. At the socket and spigot joint,
Options
A. enlarged end of the pipe is called socket
B. normal end of the pipe is called spigot
C. spigot is fitted into the socket
D. molten lead is used for water proofing
E. all the above.

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