Civil UPSC ESE Exam Solution 2021
UPSC ESE Exam Solution 2021 for Civil Engineering UPSC ESE 2021 GS Paper 1 download exam paper from telegram https://telegram.me/civil_experiences
A bridge has an expected life of 25 years and is designed for a flood magnitude of return period 100 years. What is the risk of this hydrologic design?
ANSWER= [C] 1 – (99/100)25
Detailed Solution for Civil Engineering Exam
Given data
Design life (n) = 25 years
Return Period (T) = 100 years
Risk = 1 – qn
= 1 – (1 – p)n = 1 – ( 1 – (1/T) )n
Risk = 1 – (1-(1/100))25
Risk = 1 – (99/100)25
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