Irrigation Engineering The peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be 30 m3/sec 20 m3/sec 25 m3/sec 35 m3/sec 30 m3/sec 20 m3/sec 25 m3/sec 35 m3/sec ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The aqueduct or superpassage type of works are generally used when None of these high flood drainage discharge is small high flood drainage discharge is large and continues for a long time high flood drainage discharge is large and short lived None of these high flood drainage discharge is small high flood drainage discharge is large and continues for a long time high flood drainage discharge is large and short lived ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The field capacity of a soil depends upon Capillary tension in soil Porosity of soil Both (a) and (b) Neither (a) nor (b) Capillary tension in soil Porosity of soil Both (a) and (b) Neither (a) nor (b) ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering To estimate the magnitude of a flood with a return period of T years, Gumbel’s distribution method requires the following data pertaining to annual flood seriesi) mean valueii) standard deviationiii) length of recordiv) coefficient of skewThe correct answer is (i), (ii) and (iv) (i),(ii) and (iii) (i), (ii), (iii) and (iv) (i) and (ii) (i), (ii) and (iv) (i),(ii) and (iii) (i), (ii), (iii) and (iv) (i) and (ii) 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 + (0.9)010 1/(1-0.9°10) 1/(1+ 0.9010) 1 – (0.9)°l0 1 + (0.9)010 1/(1-0.9°10) 1/(1+ 0.9010) 1 – (0.9)°l0 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The uplift pressure on a dam can be controlled byi) constructing cutoff under upstream faceii) constructing drainage channels between the dam and its foundationiii) by pressure grouting in foundationThe corret answer is both (i) and (ii) (i), (ii) and (iii) only (i) both (i) and (iii) both (i) and (ii) (i), (ii) and (iii) only (i) both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
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