Irrigation Engineering In a canal syphon, the flow is Pipe flow With critical velocity Under atmospheric pressure Under negative pressure Pipe flow With critical velocity Under atmospheric pressure Under negative pressure ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by B = 0.44 √(H + d) B = 0.22 √(H + d) B = 0.33 √(H + d) B = 0.55 √(H + d) B = 0.44 √(H + d) B = 0.22 √(H + d) B = 0.33 √(H + d) B = 0.55 √(H + d) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The most suitable chemical which can be applied to the water surface for reducing evaporation is Butyl alcohol Cetyl alcohol Methyl alcohol Ethyl alcohol Butyl alcohol Cetyl alcohol Methyl alcohol Ethyl alcohol 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 25 cm 20 cm 10 cm 15 cm 25 cm 20 cm 10 cm 15 cm ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Cross regulators in main canals are provided To regulate water supply in the distributaries To overflow excessive flow water To increase water head upstream when a main canal is running with low supplies None of these To regulate water supply in the distributaries To overflow excessive flow water To increase water head upstream when a main canal is running with low supplies None of these ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Side slopes generally kept for canals in loam soil, are: Neither (A) nor (B) 1½ : 1 in cutting and 2 : 1 in filling Both (A) and (B) 1 : 1 in cutting and 1½ : 1 in filling Neither (A) nor (B) 1½ : 1 in cutting and 2 : 1 in filling Both (A) and (B) 1 : 1 in cutting and 1½ : 1 in filling ANSWER DOWNLOAD EXAMIANS APP
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