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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 syphon, an air vessel is provided

at the summit
at the outlet
ay nay point between inlet and outlet
at the inlet

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for fans having constant wheel diameter, the air or gas capacity varies

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

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Hydraulics and Fluid Mechanics in ME
The efficiency of a hydraulic press is given by (where W = Weight lifted by ram, P = Force applied on plunger, A = Area of ram, and a = Area of plunger)

(p/W) × (A/a)
(W/p) × (a/A)
(W/p) × (A/a)
(p/W) × (a/A)

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Hydraulics and Fluid Mechanics in ME
Choose the correct relationship

gravity = specific gravity x density
kinematicviscosity = dynamicviscosity x density
dynamicviscosity = kinematicviscosity x density
specific gravity = gravity x density

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Hydraulics and Fluid Mechanics in ME
The volume of a fluid __________ as the pressure increases.

Remains same
Increases
Decreases
None of these

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Hydraulics and Fluid Mechanics in ME
Dynamic similarity is said to exist between the model and the prototype, if both of them

Are identical in shape, but differ only in size
None of these
Are equal in size and shape
Have identical velocities

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