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Irrigation - Engineering

Q1:

A minimum of 90 cm free board is provided if the discharge in the canal is between

A 30 to 33 cumecs

B 30 to 60 cumecs

C Over 60 cumecs

D Over 100 cumecs

ANS:C - Over 60 cumecs

Q(m3/sec) = f.b(meter).

<.75 = .45,
.75-1.5 = .60,
1.5-85.0 = .75,
>85 = .90.