Question

The culturable command area of a water course is 1200 ha. The duty of wheat at the head of the water course is 1800 ha/cumec. The design discharge at the outlet in rabi season assuming time factor to be 0.9 is _________ cumecs.

• A. 0.74

Answer 1

The correct option is A 0.74
Discharge required for wheat,
$=\frac{\text{Area}}{\text{Duty}}=\frac{1200}{1800}=0.667cumecs$
Actual design discharge,
$=\frac{\text{Discharge}}{\text{Time factor}}=\frac{0.667}{0.9}=0.74cumecs$