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Irrigation Engineering

Irrigation Engineering
Which of the following canal outlets maintains a constant discharge ?

non-modular outlet
flexible outlet
None of these
rigid module

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Irrigation Engineering
The most suitable location of a canal head work, is

Boulders stage of the river
Trough stage of the river
Rock stage of the river
Delta stage of the river

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Irrigation Engineering
If L is total length of a canal in kilometers, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is

100 PLC
PL/1000C
PC/100L
PLC/1000

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Irrigation Engineering
Generally the weir is aligned at right angles to the direction of the main river current because

It ensures less length of the weir
All of these
It gives better discharging capacity
It is economical

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Irrigation Engineering
The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be

20 m3/sec
35 m3/sec
25 m3/sec
30 m3/sec

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Irrigation Engineering
A multipurpose reservoir is the one which is

both (A) and (B)
planned and constructed to serve various purposes
designed for one purpose but serves more than one purpose
None of these

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