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ESE CE: Hydrology Champion Quiz 4
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Question 1
The Muskingham method of flood routing is a
Question 2
It is proposed to design a causeway along a village road. The return period for the annual maximum flood of a given magnitude was found to be 5 years. The probability that, this flood magnitude will be exceeded at least once during next 2 years is:
Question 3
probability of a 10 years flood to occur at least once in the next 5 years is
Question 4
The basic equation of flood routing through a reservoir can be modified for discrete successive intervals Δt by which one of the following
Question 5
From the analysis of rainfall data at a particular station, it was found that a rainfall of 400 mm had a return period of 20 years. What is the probability of rainfall equal to or greater than 400 mm occurring at least once in 10 successive years?
Question 6
During a flood in a stream of width 200 m (taken as rectangular section), the gauge reading was found to rise by 18 cm per hour. What would be the difference in discharges at two sections, each 250 m on either side of the gauge station?
Question 7
A triangular direct runoff hydrograph due to a strom has a time base of 60 hr and a peak flow of 30 m3/s occurring at 20 hr from the start. If the catchment area is 300km2, what is the rainfall excess in the strom?
Question 8
The top width and the depth of flow in a triangular channel were measured as 4 m and 1 m, respectively. The measured velocities on the centre line at the water surface, 0.2 m and 0.8 m below the surface are 0.7 m/s, 0.6 m/s and .4 m/s, respectively. Using two–point method of velocity measurement, the discharge (in m3/s) in the channel is
Question 9
The depth of flow in an alluvial channel is 1.5 m. If critical velocity ratio is 1.1 and Manning’s n is 0.018, the critical velocity of the channel as per Kennedy’s method is
Question 10
A 1–h rainfall of 10 cm magnitude at a station has a return period of 50 years. The probability that a 1–h rainfall of magnitude 10 cm or more will occur in each of two successive years is:
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Feb 13ESE & GATE CE
