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UPSC Civil Service Exam Questions - Engineering

Q1:

A model of a weir made to a horizontal scale of 1/40 and vertical scale of 1/9 discharges 1 litre/sec. Then the discharge in the prototype is estimated as

A 1 lps

B 108 lps

C 1080 lps

D 10800 lps

ANS:C - 1080 lps

Give an explanation.