GATE CE 2018 Set 2 — Question 34
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Water Resources Engineering → Irrigation Systems & Water Need → Duty
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Question
The intensity of irrigation for the Kharif season is 50% for an irrigation project with culturable command area of 50,000 hectares. The duty for the Kharif season is 1000 hectare/cumec. Assuming transmission loss of 10%, the required discharge (in cumec, up to two decimal places) at the head of the canal is ______
Correct answer
27 to 28
Solution
1.Calculate the area to be irrigated during the Kharif season:
Area () = Intensity of Irrigation Culturable Command Area (CCA)hectares.
2.Calculate the required discharge at the field ():
cumec.3.Account for transmission losses to find the discharge at the head of the canal ():
Transmission loss = 10%Conveyance Efficiency () =
cumec.Rounding to two decimal places, the required discharge at the head of the canal is 27.78 cumec, which falls within the accepted range of 27.00 to 28.00.
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