Irrigation Engineering The most suitable chemical which can be applied to the water surface for reducing evaporation is Cetyl alcohol Methyl alcohol Ethyl alcohol Butyl alcohol Cetyl alcohol Methyl alcohol Ethyl alcohol Butyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering S-hydrograph is used to obtain unit hydrograph of None of these longer duration from shorter duration both (A) and (B) shorter duration from longer duration None of these longer duration from shorter duration both (A) and (B) shorter duration from longer duration ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Wetted perimeter of a regime channel for a discharge of 64 cumecs as per Lacey’s theory will be 15m 19m 38m 91m 15m 19m 38m 91m ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The uplift pressure on a dam can be controlled by i) constructing cutoff under upstream face ii) constructing drainage channels bet-ween the dam and its foundation iii) by pressure grouting in foundation The corret answer is both (i) and (ii) both (i) and (iii) only (i) (i), (ii) and (iii) both (i) and (ii) both (i) and (iii) only (i) (i), (ii) and (iii) 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 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 Q = 1.71 BD1/2 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The meander pattern of a river is developed by Maximum discharge Critical discharge Average discharge Dominant discharge Maximum discharge Critical discharge Average discharge Dominant discharge ANSWER DOWNLOAD EXAMIANS APP