Irrigation Engineering If B and d are the bed width and depth of a channel in meters, the combined losses due to evaporation and seepage in cumecs per kilometer length of the channel, is (1/50) × (B + d)2/3 (1/150) × (B + d)2/3 (1/100) × (B + d)2/3 (1/200) × (B + d)2/3 (1/50) × (B + d)2/3 (1/150) × (B + d)2/3 (1/100) × (B + d)2/3 (1/200) × (B + d)2/3 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The major resisting force in a gravity dam is water pressure self-weight of dam wave pressure uplift pressure water pressure self-weight of dam wave pressure uplift pressure ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor downstream of the crest-wall, is given by the equation t = (h - 1)/(G - t) t = (h + 1)/(G + t) t = (h + 1)/G t = (h - 1)/(G + t) t = (h - 1)/(G - t) t = (h + 1)/(G + t) t = (h + 1)/G t = (h - 1)/(G + t) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The downstream expansion head of a guide bank is extended to subtend an angle at the centre, equal to 30° 45° 90° 60° 30° 45° 90° 60° ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering In gravity canals, F.S.L. is Always below the ground level Only a few cm above the ground level Always at the ground level Generally 4 to 5 metres above the ground level Always below the ground level Only a few cm above the ground level Always at the ground level Generally 4 to 5 metres above the ground level ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering As per Lacey’s theory, the silt factor is directly proportional to square root of average particle size inversely proportional to average par¬ticle size not related to average particle size directly proportional to average par¬ticle size directly proportional to square root of average particle size inversely proportional to average par¬ticle size not related to average particle size directly proportional to average par¬ticle size ANSWER DOWNLOAD EXAMIANS APP
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