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Irrigation Engineering

Irrigation Engineering
A straight glacis type fall with a baffle platform and a baffle wall is called

Montague type fall
Vertical drop-fall
Glacis fall
Inglis fall

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Irrigation Engineering
The meander pattern of a river is developed by

Maximum discharge
Dominant discharge
Critical discharge
Average discharge

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Irrigation Engineering
According to Bligh's creep theory, percolating water flows along

Circular path under the foundation of the dam
The outline of the base of the foundation of the dam
None of these
Straight path under the foundation of the dam

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

during construction
sloughing of slope
steady seepage
sudden drawdown

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Irrigation Engineering
If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor downstream of the crest-wall, is given by the equation

t = (h - 1)/(G - t)
t = (h + 1)/(G + t)
t = (h + 1)/G
t = (h - 1)/(G + t)

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Irrigation Engineering
The field capacity of a soil is 25%, its permanent wilting point is 15% and specific dry unity weight is 1.5. If the depth of root zone of a crop, is 80 cm, the storage capacity of the soil, is

10 cm
14 cm
12 cm
8 cm

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