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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Bernoulli's equation is applied to

Pitot tube
Orifice meter
All of the listed here
Venturimeter

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

adhesion
compressibility
viscosity
cohesion

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Hydraulics and Fluid Mechanics in ME
According to fan laws, for the fans having constant wheel diameters, the power demand varies

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

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

Have identical forces
Are identical in shape, but differ only in size
Have identical velocities
Are equal in size and shape

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Hydraulics and Fluid Mechanics in ME
If the surface of liquid is convex, men

Cohesion pressure is increased
There is no cohesion pressure
Cohesion pressure is negligible
Cohesion pressure is decreased

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Hydraulics and Fluid Mechanics in ME
Which of the following statement is correct as regard to water wheels?

They are suitable even for low water heads
All of these
They give constant efficiency, even if the discharge is not constant
They have slow speeds

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