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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to

100 kg
10 kg
1 kg
1000 kg

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is

0.36
0.46
0.56
0.26

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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

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

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Hydraulics and Fluid Mechanics in ME
Unit of surface tension is

It has no units
Both of the above
Velocity/unit area
Energy/unit area

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Hydraulics and Fluid Mechanics in ME
The total pressure on an immersed surface inclined at an angle θ with the liquid surface is

wAx/sinθ
wAx
wx
wA

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Hydraulics and Fluid Mechanics in ME
The viscosity of water at 20°C is

One stoke
One poise
One centistoke
One centipoise

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