Hydrology-Hydrological Cycle [IES-ESE (Engineering Services) Civil Engineering]: Questions 1 - 3 of 13

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Question 1

Appeared in Year: 2017

Question Assertion-Reason▾

Assertion(Ꭺ)

Collin՚s method for the determination of the unit hydrograph for a multi-period storm considers residuals as attributable to the unit graph of the period of the largest rain.

Reason(Ꭱ)

Collin՚s method is ab initio premised on the Bernard method where a unit graph is necessarily to be proportional to the net rain.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

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Question 2

Appeared in Year: 2016

Question MCQ▾

Over a basin of area , there was a storm for 6 h with a uniform intensity of 2 cm/h. The observed runoff was . The average rate of infiltration for the basin was

Choices

Choice (4)Response

a.

10 mm/h

b.

40 mm/h

c.

5 mm/h

d.

20 mm/h

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Question 3

Appeared in Year: 2015

Question MCQ▾

A 4-hour rainfall in a catchment of 250 produces rainfall depths of 6.2 cm and 5 cm in successive 2-hour unit periods. Assuming the - index of the soil to be 1.2 cm/hour, the runoff volume is

Choices

Choice (4)Response

a.

16 ha-m

b.

1.6 ha-m

c.

1600 ha-m

d.

160 ha-m

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