Irrigation Engineering In gravity canals, F.S.L. is Only a few cm above the ground level Always at the ground level Always below the ground level Generally 4 to 5 metres above the ground level Only a few cm above the ground level Always at the ground level Always below the ground level Generally 4 to 5 metres above the ground level ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering A minimum of 90 cm free board is provided if the discharge in the canal is between 30 to 60 cumecs Over 100 cumecs Over 60 cumecs 30 to 33 cumecs 30 to 60 cumecs Over 100 cumecs Over 60 cumecs 30 to 33 cumecs ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering The useful moisture of soil, is equal to its Difference between filed capacity and permanent wilting point within the root zone of plants Saturation capacity Field capacity Moisture content at permanent wilting point Difference between filed capacity and permanent wilting point within the root zone of plants Saturation capacity Field capacity Moisture content at permanent wilting point ANSWER DOWNLOAD EXAMIANS APP
Irrigation Engineering For wave action in dams, the maximum height of freeboard is generally taken to be equal to (where hw is height of wave.) 1.25 hw 0.75 hw 1.50 hw 0.5 hw 1.25 hw 0.75 hw 1.50 hw 0.5 hw 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 A runoff river plant is a high head scheme None of these a medium head scheme a low head scheme a high head scheme None of these a medium head scheme a low head scheme ANSWER DOWNLOAD EXAMIANS APP
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