Irrigation Engineering Lacey's equation for calculating flood discharge in rivers, is V = 10.8 R1/3 S2/3 V = 10.8 R2/3 S1/3 V = 10.8 R1/2 S1/2 V = 10.8 R2/3 S1/2 V = 10.8 R1/3 S2/3 V = 10.8 R2/3 S1/3 V = 10.8 R1/2 S1/2 V = 10.8 R2/3 S1/2 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering For a flood control reservoir, the effective storage is equal to useful storage – valley storage useful storage + surcharge storage useful storage + surcharge storage + valley storage useful storage + surcharge storage -valley storage useful storage – valley storage useful storage + surcharge storage useful storage + surcharge storage + valley storage useful storage + surcharge storage -valley storage ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering V and R are the regime mean velocity and hydraulic mean depth respectively in meters. Lacey's silt factor f is 5V²/2R 3V²/4R 2V²/√3 R 2V²/5R 5V²/2R 3V²/4R 2V²/√3 R 2V²/5R ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The maximum rainfall depth of 300 mm in 24 hours has a return period of 100 years. The probability of 24 hours rainfall equal to or greater than 300 mm occurring at least once in 10 years is given by (0.9)00 1 – (0.99)10 l-(0.9)100 (0.99)10 (0.9)00 1 – (0.99)10 l-(0.9)100 (0.99)10 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering In a chute spillway, the flow is usually subcritical critical super critical uniform subcritical critical super critical uniform ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called consumptive irrigation requirement consumptive use effective rainfall net irrigation requirement consumptive irrigation requirement consumptive use effective rainfall net irrigation requirement ANSWER DOWNLOAD EXAMIANS APP
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