Hydraulics and Fluid Mechanics in ME
The discharge through a channel of trapezoidal section is maximum when

Depth of channel is equal to the width at the bottom
The sloping side is equal to the width at the bottom
Width of channel at the top is equal to twice the width at the bottom
The sloping side is equal to half the width at the top

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Hydraulics and Fluid Mechanics in ME
Which of the following is an incorrect statement ?

Flow nozzle is cheaper than venturimeter but has higher energy loss
Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined
Coefficient of contraction of a venturimeter is unity
None of these

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