Civil Engineering MCQJE Level Civil Engineering
For a crop with a duty of 1000 hectares per cumec and a base period of 120 days, the delta (total depth of water required) is:
Irrigation EngineeringWater Requirement of CropsHARD
Choose the correct answer
A
0.52 m
B
1.04 m
C
1.56 m
D
2.08 m
Correct Answer
B. 1.04 m
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Δ = 8.64 × B / D = 8.64 × 120 / 1000 = 1036.8 / 1000 = 1.037 m ≈ 1.04 m. Here 8.64 converts cumec-days to million litres; duty D is in ha/cumec, base period B in days, delta Δ in metres.
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