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

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

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure

Increases linearly as its radial distance
Increases as the square of the radial distance
Decreases as the square of the radial distance
Varies as the square of the radial distance

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