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GATE Exam Questions - Engineering

Q1:

In deriving the equation for the hydraulic jump in a rectangular channel in terms of the conjugate depths and the initial Froude number.

A continuity equation and energy equation are used

B continuity equation and momentum equation are used

C equations of continuity, mementum and energy are used

D gradually varied flow equation is used

ANS:C - equations of continuity, mementum and energy are used

The derivation for equation of hydraulic jump in terms of conjugate depths and the initial provide number involves continuity and momentum equation. As hL is unknown hence y2 cannot be determined by energy equation.