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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a siphon, an air vessel is provided

At the inlet
At the summit
At the outlet
At any point between inlet and outlet

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Hydraulics and Fluid Mechanics in ME
Gauge pressure at a point is equal to the absolute pressure ___ the atmospheric pressure.

Multiply
Divide
Plus
Minus

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Hydraulics and Fluid Mechanics in ME
A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is

18,000 kg
13,500 kg
27,000 kg
9,000 kg

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Hydraulics and Fluid Mechanics in ME
The wake

always occurs before a separation point
always occurs after a separation point
is a region of high pressure intensity
None of these

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Hydraulics and Fluid Mechanics in ME
If the net positive suction head (NPSH) requirement for the pump is not satisfied, then

Excessive power will be consumed
No flow will take place
Efficiency will be low
Cavitation will be formed

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Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

4.171 H5/2
7.141 H5/2
1.417 H5/2
0.417 H5/2

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