If the area of storm hydrograph is equal to 10^{2} cm, the ordinates of a unit hydrograph may be obtained by dividing the ordinates of the storm hydrograph by

[A].

0.5

[B].

1

[C].

2

[D].

3

[E].

4

Answer: Option E

Explanation:

No answer description available for this question.

I think answer is 1. Since excess rainfall in unit hydrograph always in 1 order ie 1mm or 1 cm.

Vasanth S D said:
(Jul 11, 2018)

It is 1 cm only not mm.

Vishal Gupta said:
(Jan 25, 2019)

10/2.5 = 4.

Duhan said:
(May 12, 2019)

Best unit duration of storm for a UH is assuming 1/4 of basin lag so it's divided by 4.

Jayank said:
(Jul 26, 2019)

UH is assuming 1/4 of basin lag so it's divided by 4.

Nabinkafle said:
(Feb 16, 2020)

The synthetic unit hydrograph developed above is for a particular duration (Tr) of the storm, if the unit hydrograph of another duration D is required then the basin lag (Tl) is modified as Eqn= (Tl + (D-Tr/4) ).

So the answer is 4 definitely no doubt.

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