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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of pressure
center of buoyancy
center of gravity
water surface

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

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Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank, and g = Acceleration due to gravity)

tanθ = a/g
tanθ = a2/2g
tanθ = 2 a/g
tanθ = a/2g

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Hydraulics and Fluid Mechanics in ME
Which of the following is the unit of kinematic viscosity

poise
stoke
pascal
faraday

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Hydraulics and Fluid Mechanics in ME
The pressure of a liquid measured with the help of a Piezometer tube is

Atmospheric pressure
Vacuum pressure
Gauge pressure
Absolute pressure

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Hydraulics and Fluid Mechanics in ME
The width of the bucket for a Pelton wheel is generally ________ the diameter of jet.

Four times
Three times
Five times
Double

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