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

steady seepage
during construction
sloughing of slope
sudden drawdown

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Irrigation Engineering
The intensity of irrigation means

Percentage of gross commanded area to be irrigated annually
Percentage of culturable commanded area to be irrigated annually
Total depth of water supplied by the number of waterings
Percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually

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Irrigation Engineering
For a standing crop, the consumptive use of water is equal to the depth of water

Evaporated by the crop
Transpired by the crop
Used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil
Transpired and evaporated by the crop

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