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# GATE (CE) 2022 : HYDROLOGY AND IRRIGATION QUIZ#4

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Question 1

A conventional flow duration curve is a plot between

Question 2

If one wants to be 90% sure that the design flood in a dam project will not occur during the design life period of 100 years, the recurrence interval for such a flood would be

Question 3

The type of flood routing (Group I) and the equation(s) used for the purpose (Group II) are given below.
Group I
P. Hydrologic flood routing
Q. Hydraulic flood routing
Group II
1) Continuity equation
2) Momentum equation
3) Energy equation
The correct match is

Question 4

The inflow and outflow hydrographs of a reservoir routing are shown below

The peak attenuation (in m3/sec) and peak lag (in hr) are respectively

Question 5

An annual flood series contains 150 years of flood data with the return period of 220 years. The gumbel’s reduced variate is

Question 6

In a frequency analysis of rainfall based on years of data of 10 minutes storm, the following values are obtained :

Arithmetic mean data = 1.65 cm

Standard deviation = 0.45 cm

Using Gumbel’s extreme values distribution, the recurrence interval of a storm of ten minutes duration and depth equal to 3 cm is

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