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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

viscosity
surface tension forces
air resistance
atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
If no resistance is encountered by displacement, such a substance is known as

Gas
Ideal fluid
Fluid
Water

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Hydraulics and Fluid Mechanics in ME
Which place in hydraulic turbine is most susceptible for cavitations?

Guide blade
Penstock
Blade inlet
Inlet of draft rube

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Hydraulics and Fluid Mechanics in ME
A model of a reservior is drained in 4 mts by opening the sluice gate. The model scale is 1: 225. How long should it take to empty the prototype ?

4 x V225 minutes
4 (225)1/3 minutes
4 x (225)3/2 minutes
4 minutes

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Hydraulics and Fluid Mechanics in ME
The discharge in an open channel corresponding to critical depth is

Zero
None of these
Maximum
Minimum

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Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

mass of liquid displaced
pressure of the liquid displaced
viscosity of the liquid
depth of immersion

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