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Irrigation Engineering

Irrigation Engineering
In a Sarda type fall, the rectangular crest, may be used for discharge upto

6 cumecs
20 cumecs
10 cumecs
14 cumecs

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Irrigation Engineering
Instantaneous unit hydrograph is a hydrograph of
i) unit duration
ii) unit rainfall excess
iii) infinitely small duration
iv) infinitely small rainfall excess
The correct answer is

(ii) and (iii)
(i)and(iv)
(iii) and (iv)
(i) and (ii)

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Irrigation Engineering
A deficit of sediments in flowing water may cause a river

Meandering type
Sub-critical type
Aggrading type
Degrading type

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Irrigation Engineering
The ratio of the average load to the installed capacity of the plant whose reserve capacity is zero will be equal to

Load factor
Plant factor
Both load and plant factor
Utilization factor

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Irrigation Engineering
The minimum size of stone that will remain at rest in a channel of longitudinal slope S and hydraulic mean depth R is given by

4RS
15 RS
11RS
7RS

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Irrigation Engineering
The scour depth D of a river during flood, may be calculated from the Lacey's equation

D = 0.47 (Q/f)1/3
D = 0.47 (Q/f)1/2
D = 0.47 (Q/f)
D = 0.47 (Q/f)2/3

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