GATE Exam Questions

Q1:

A direct runoff hydrograph due to an isolated storm with an effective rainfall of 2 cm was trapezoidal in shape as shown in the below figure. The hydrograph corresponds to a catchment area (in sq. km) of

A 790.2

B 599.4

C 689.5

D 435.3

ANS:B - 599.4

Area of given DRH = volume of direct run off.

[(1/2)(70+4) * (60)*(60) * (90) ] m3=11988000 m3,
Effective rainfall = 2 cm,
Catchment area = Volume of DRH/Effective rainfall.
11988000 / (2 * 10-2) m2 = 599.4 m2.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.