Irrigation Engineering The most suitable chemical which can be applied to the water surface for reducing evaporation is Cetyl alcohol Ethyl alcohol Butyl alcohol Methyl alcohol Cetyl alcohol Ethyl alcohol Butyl alcohol Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Silt excluders are constructed on the river bed downstream of head regulator river bed upstream of head regulator canal bed upstream of head regulator canal bed downstream of head regulator river bed downstream of head regulator river bed upstream of head regulator canal bed upstream of head regulator canal bed downstream of head regulator ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Attracting groynes are built Inclined up stream Perpendicular to the bank Inclined down stream None of these Inclined up stream Perpendicular to the bank Inclined down stream None of these ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called effective rainfall net irrigation requirement consumptive use consumptive irrigation requirement effective rainfall net irrigation requirement consumptive use consumptive irrigation requirement ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The maximum rainfall depth of 300 mm in 24 hours has a return period of 100 years. The probability of 24 hours rainfall equal to or greater than 300 mm occurring at least once in 10 years is given by (0.99)10 l-(0.9)100 (0.9)00 1 – (0.99)10 (0.99)10 l-(0.9)100 (0.9)00 1 – (0.99)10 ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering Seepage through foundation in an earthen dam is controlled by providing impervious cut off rock toe horizontal blanket chimney drain impervious cut off rock toe horizontal blanket chimney drain ANSWER DOWNLOAD EXAMIANS APP
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