Civil Engineering :: Irrigation
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A deficit of sediments in flowing water may cause a river
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Pick up the correct statement from the following:
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If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hactare/cumec, the relationship which holds good, is
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Meandering of a river generally occurs, in
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The consumptive use of water for a crop
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The velocity of drainage water in the barrels of a syphon-aqueduct, is normally limited to
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A fall in a canal bed is generally provided, if
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According to Khosla, the exist gradient of surface flow
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Pick up the correct statement from the following:
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If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is
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A.
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B.
According to Lacey, regime conditions require a particular slope for a given discharge and silt factor |
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C.
In case the ground slope is less than the required bed slope, the silt factor must be reduced by permitting the entry of coarse sil |
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D.
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