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 (i), (ii) and (iii) only (i) both (i) and (ii) both (i) and (iii) (i), (ii) and (iii) only (i) both (i) and (ii) both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Variability of rainfall isi) largest in regions of high rainfallii) largest in coastal areasiii) largest in regions of scanty rainfallThe correct answer is only (i) (ii) and (iii) (i) and (ii) only (iii) only (i) (ii) and (iii) (i) and (ii) only (iii) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is 25 cm 20 cm 15 cm 10 cm 25 cm 20 cm 15 cm 10 cm ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If the intensity of rainfall is more than the infiltration capacity of soil, then the infiltration rate will be more than infiltration capacity equal to infiltration capacity equal to rate of rainfall more than rate of rainfall more than infiltration capacity equal to infiltration capacity equal to rate of rainfall more than rate of rainfall ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls Of R.C.C. or steel plate 8 cm thick Of height ⅓rd to ¼th the depth of water in the main canal Spaced at interval of 1½ times their heights All listed here Of R.C.C. or steel plate 8 cm thick Of height ⅓rd to ¼th the depth of water in the main canal Spaced at interval of 1½ times their heights All listed here ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering If the critical shear stress of a channel is XC, then the average value of shear stress required to move the grain on the bank is 0.5 XC 0.75 TC XC 1.33 TC 0.5 XC 0.75 TC XC 1.33 TC ANSWER DOWNLOAD EXAMIANS APP
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