Civil Engineering MCQAE Level Civil Engineering
A 1-hour rainfall of 10 cm has a return period of 50 years. The probability of a 1-hour rainfall of 10 cm or more occurring in each of two successive years is
HydrologyHydrologyMEDIUM
Choose the correct answer
A
0.02
B
0.04
C
0.0002
D
0.0004
Correct Answer
D. 0.0004
Why is this the answer?
P = 1/50 = 0.02 per year; for both successive years P×P = 0.02×0.02 = 0.0004.
Related Hydrology MCQs
More solved Hydrology questions for AE/JE Civil Engineering exams.
- The 'SCS Curve Number' (CN) method for estimating runoff uses CN values that depend on:
- The 'design storm' for urban drainage uses IDF (Intensity-Duration-Frequency) curves...
- If the coefficient of variation of the rainfall values of the existing rain-gauge...
- If base period is 150 days and delta is 0.6 m, duty is
- For base period 120 days and duty 600 ha/cumec, delta is
- Darcy's law for groundwater flow states that the discharge velocity (Darcy flux) v...
Practice more Civil Engineering questions
This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.