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 = 0.55 √(H + d) B = 0.33 √(H + d) B = 0.22 √(H + d) B = 0.44 √(H + d) B = 0.55 √(H + d) B = 0.33 √(H + d) B = 0.22 √(H + d) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The best unit duration of storm for a unit hydrograph is 1 hour one-half of basin lag one-fourth of basin lag equal to basin lag 1 hour one-half of basin lag one-fourth of basin lag equal to basin lag ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be 1/(1+ 0.9010) 1/(1-0.9°10) 1 + (0.9)010 1 – (0.9)°l0 1/(1+ 0.9010) 1/(1-0.9°10) 1 + (0.9)010 1 – (0.9)°l0 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. doesnot touch the underside of the supporting structure, the structure so provided, is called Syphon-aqueduct Super passage Aqueduct Syphon Syphon-aqueduct Super passage Aqueduct Syphon ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering For smooth entry of water in a canal, the angle between head regulator and water is generally kept 120° 80° 110° 90° 120° 80° 110° 90° ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering A divide wall is provided Parallel to the axis of weir and downstream of it At right angle to the axis of weir At an inclination to the axis of weir Parallel to the axis of weir and upstream of it Parallel to the axis of weir and downstream of it At right angle to the axis of weir At an inclination to the axis of weir Parallel to the axis of weir and upstream of it ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS