Irrigation Engineering The water face of the guide banks, is protected by Two man stone pitching Three man stone pitching Four man stone pitching One men stone pitching Two man stone pitching Three man stone pitching Four man stone pitching One men stone pitching ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be 35 m3/sec 25 m3/sec 30 m3/sec 20 m3/sec 35 m3/sec 25 m3/sec 30 m3/sec 20 m3/sec ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The level of the floor of a syphon aqueduct can be obtained None of these Both (a) and (b) By subtracting the thickness of culvert plus the depth of the culvert from the canal bed level By subtracting the depth of the culvert from the canal bed level None of these Both (a) and (b) By subtracting the thickness of culvert plus the depth of the culvert from the canal bed level By subtracting the depth of the culvert from the canal bed level 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 (0.99)10 l-(0.9)100 (0.9)00 1 – (0.99)10 (0.99)10 l-(0.9)100 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is 2.00 D 1.50 D 1.75 D 1.25 D 2.00 D 1.50 D 1.75 D 1.25 D ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The uplift pressure on the roof of an inverted syphon, is maximum when Drain is running with H.F.L. Drain in running dry Canal is running dry Canal is running with F.S.L. Drain is running with H.F.L. Drain in running dry Canal is running dry Canal is running with F.S.L. ANSWER DOWNLOAD EXAMIANS APP