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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The buoyancy depends on

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

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Hydraulics and Fluid Mechanics in ME
In a Kaplan turbine runner, the numbers of blades are generally between

16 to 24
4 to 8
8 to 16
2 to 4

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Hydraulics and Fluid Mechanics in ME
An ideal flow of any fluid must fulfill the following

Continuity equation
Newton’s law of viscosity
Pascal’ law
Newton’s law of motion

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Hydraulics and Fluid Mechanics in ME
An average value of coefficient of velocity is

0.97
0.62
0.76
0.84

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of discharge is __________ the value of coefficient of velocity.

None of these
Less than
More than
Same as

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the pressure varies

Square root of fan speed
Cube of fan speed
Square of fan speed
Directly as fan speed

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