Hydraulics and Fluid Mechanics in ME
Venturimeter is used to

Measure the pressure difference of liquid flowing between two points in a pipe line
Measure the discharge of liquid flowing in a pipe
Measure the velocity of a flowing liquid
Measure the pressure of a flowing liquid

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

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

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