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Concept drill

return period

GATE Civil Engineering · Floods · 1998-2026

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2026 Q32

The probability (in %) that a storm having return period of 15 years may occur in the next 10 years is ________ (rounded off to two decimal places).

mediumanswer key
2026 Q55

A bridge with an expected life of 50 years is designed for a flood of 10000 m³/s corresponding to the return period of 100 years. The risk associated with this design is ________ (...

mediumanswer key
2025 Q34

A water resources project with an expected life of 25 years has to be designed for an acceptable risk of 5% against a design flood. The return period for the design flood (in years...

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2025 PYQ

A water resources project with an expected life of 25 years has to be designed for an acceptable risk of $5 \%$ against a design flood. The return period for the design flood (in y...

mediumbasic explanation
2024 Q47

The return period of a large earthquake for a given region is 200 years. Assuming that earthquake occurrence follows Poisson's distribution, the probability that it will be exceede...

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2024 PYQ

The return period of a large earthquake for a given region is 200 years. Assuming that earthquake occurrence follows Poisson’s distribution, the probability that it will be exceede...

mediumbasic explanation
2022 PYQ

A flood control structure having an expected life of n years is designed by considering a flood of return period T years. When T = n, and n $$\to$$ $$\infty$$, the structures hydro...

mediumbasic explanation
2020 Q18

The probability that a 50 year flood may NOT occur at all during 25 years life of a project (round off to two decimal places), is _________.

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2019 Q23

The probability that the annual maximum flood discharge will exceed 25000 m³/s, at least once in next 5 years is found to be 0.25. The return period of this flood event (in years,...

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2013 PYQ

A 1-hour rainfall of 10 cm has a return period of 50 years. The probability that 1 hour of rainfall 10 cm or more will occur in each of two successive years is

easyanswer key
1998 PYQ

The return period for the annual maximum flood of a given magnitude is 8 years. The probability that this flood magnitude will be executed once during the next 5 years is

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