Irrigation Engineering If D is the depth of scour below original bed, then the width of launching apron is generally taken as 2.0 D 1.2 D 2.5 D 1.5 D 2.0 D 1.2 D 2.5 D 1.5 D ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The unit hydrograph due to a storm may be obtained by dividing the ordinates of the direct runoff hydrograph by period of storm None of these total rainfall direct runoff volume period of storm None of these total rainfall direct runoff volume ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering 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 20 cm 25 cm 15 cm 10 cm 20 cm 25 cm 15 cm 10 cm ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hectare/cumec, the relationship which holds good, is D = (8.6 Δ/B) B = Δ (8.64 B/D) D = Δ (8.64 D/B) Δ = (8.6 B/D) D = (8.6 Δ/B) B = Δ (8.64 B/D) D = Δ (8.64 D/B) Δ = (8.6 B/D) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The uplift pressure on the face of a drainage gallery in a dam is taken as hydrostatic pressure at toe two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel None of these average of hydrostatic pressure at toe and heel hydrostatic pressure at toe two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel None of these average of hydrostatic pressure at toe and heel ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milli equivalent per litre respectively will be classified as low sodium water high sodium water very high sodium water medium sodium water low sodium water high sodium water very high sodium water medium sodium water ANSWER DOWNLOAD EXAMIANS APP
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