Irrigation Engineering The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called consumptive use effective rainfall consumptive irrigation requirement net irrigation requirement consumptive use effective rainfall consumptive irrigation requirement net irrigation requirement ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Generally the weir is aligned at right angles to the direction of the main river current because It gives better discharging capacity It ensures less length of the weir It is economical All of these It gives better discharging capacity It ensures less length of the weir It is economical All of these ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is Q = 1.71 BD1/2 Q = 1.71 BD Q = 1.71 BD3/2 Q = 1/71 BD2/3 Q = 1.71 BD1/2 Q = 1.71 BD Q = 1.71 BD3/2 Q = 1/71 BD2/3 ANSWER DOWNLOAD EXAMIANS APP
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 (1/200) × (B + d)2/3 (1/150) × (B + d)2/3 (1/50) × (B + d)2/3 (1/100) × (B + d)2/3 (1/200) × (B + d)2/3 (1/150) × (B + d)2/3 (1/50) × (B + d)2/3 (1/100) × (B + d)2/3 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Infiltration capacity changes with both time and location is a constant factor changes with time changes with location changes with both time and location is a constant factor changes with time changes with location ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If A is the area of the surface, x̅ is the depth of its C.G. from the surface of the water and ω is the density of water, then Depth of the centre of pressure is 2/3H vertically below the surface All listed here Total pressure on the surface is equal to ωx̅ Depth of the point at which total pressure acts is equal to its moment of inertia divided by Ax̅ Depth of the centre of pressure is 2/3H vertically below the surface All listed here Total pressure on the surface is equal to ωx̅ Depth of the point at which total pressure acts is equal to its moment of inertia divided by Ax̅ ANSWER DOWNLOAD EXAMIANS APP
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