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Irrigation Engineering

Irrigation Engineering
According to Khosla’s theory, the exit gradient in the absence of a downstream cutoff is

infinity
very large
unity

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Irrigation Engineering
According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase

Water surface elevation during floods
Rate of flood wave
Surface slope of streams above the levied portion
Maximum discharge

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Irrigation Engineering
Canals constructed for draining off water from water logged areas, are known

Contour canals
Valley canals
Inundation canals
Drains

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Irrigation Engineering
A river bend characterized by silting

scouring on concave side and silting on convex side
scouring on concave side
silting on convex side
scouring on convex side and on concave side

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Irrigation Engineering
Side slopes generally kept for canals in loam soil, are:

1½ : 1 in cutting and 2 : 1 in filling
Both (A) and (B)
Neither (A) nor (B)
1 : 1 in cutting and 1½ : 1 in filling

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

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

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