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Irrigation Engineering

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

Meandering type
Degrading type
Aggrading type
Sub-critical type

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Irrigation Engineering
While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available. These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3

A super passage
A syphon aqueduct
A syphon
An aqueduct

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

14 cumecs
6 cumecs
10 cumecs
20 cumecs

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Irrigation Engineering
Canals taken off from ice-fed perennial rivers, are known

Permanent canals
Perennial canals
Inundation canals
Ridge canals

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Irrigation Engineering
For the upstream face of an earthen dam, the most adverse condition for stability of slope is

sloughing of slope
during construction
sudden drawdown
steady seepage

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Irrigation Engineering
If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by

B = 0.33 √(H + d)
B = 0.22 √(H + d)
B = 0.44 √(H + d)
B = 0.55 √(H + d)

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