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Irrigation Engineering

Irrigation Engineering
The stream which does not have any base flow contribution is called

intermittent stream
perennial stream
ephemeral stream
None of these

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Irrigation Engineering
For the stability of a structure against seepage pressure according to Khosla's creep theory, the critical gradient is

1
0.25
0.5
Zero

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Irrigation Engineering
Seepage through foundation in an earthen dam is controlled by providing

rock toe
impervious cut off
horizontal blanket
chimney drain

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Irrigation Engineering
For a catchment area of 120 km2, the equilibrium discharge in m3/hour of an S-curve obtained by the summation of 6 hour unit hydro graph is

2.4 xlO6
7.2 xlO6
0.2 x 106
0.6 x 106

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Irrigation Engineering
Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey’s theory will be

19m
91m
38m
15m

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Irrigation Engineering
Attracting groynes are built

Perpendicular to the bank
None of these
Inclined up stream
Inclined down stream

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