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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

kg-sec/meter
Newton-sec per meter²
Meters² per sec
Newton-sec per meter

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Hydraulics and Fluid Mechanics in ME
The increase of temperature results in

decrease in viscosity of liquid
decrease in viscosity of gas
increase in viscosity of liquid
increase in viscosity of gas

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Hydraulics and Fluid Mechanics in ME
The center of gravity of the volume of the liquid displaced by an immersed body is called

center of gravity
center of pressure
center of buoyancy
metacentre

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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

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

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

Decreases
Increases
Remains same
None of these

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Hydraulics and Fluid Mechanics in ME
A weir, generally, used as a spillway of a dam is

Narrow crested weir
Ogee weir
Submerged weir
Broad crested weir

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