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UPSC Civil Service Exam Questions - Engineering

Q1:

The given figure shows gradually varied flow in an open channel with a beak in bed slope. Types of water surface profiles occurring from left to right are

A H2 , S3

B H2 , S2

C H2 , M2

D H3 , M2

ANS:B - H2 , S2

Slope is zero therefore horizontal.

Drawdown in water level from CDL to NDL therefore S2 profile.

NDL is above the CDL therefore steep slope.