Civil Engineering MCQAE Level Civil Engineering
A 6 h storm had 6 cm rainfall and resulting runoff was 3 cm. If phi-index remains same, runoff due to 12 cm rainfall in 9 h is
HydrologyHydrologyMEDIUM
Choose the correct answer
A
9.0 cm
B
4.5 cm
C
6.0 cm
D
7.5 cm
Correct Answer
D. 7.5 cm
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Phi-index = (6-3)/6 = 0.5 cm/h; loss in 9 h = 4.5 cm, runoff = 12 - 4.5 = 7.5 cm
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.