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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Viscosity
Capillarity
Surface tension
Compressibility

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Hydraulics and Fluid Mechanics in ME
The unit of viscosity is

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

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Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator normally consists of

A cylinder and a ram
Two cylinders, two rams and a storage device
A cylinder, a piston, storage tank and control valve
Two coaxial rams and two cylinders

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Hydraulics and Fluid Mechanics in ME
The velocity distribution for laminar flow through a circular tube

varies parabolically with maximum at the centre
varies linearly from zero at walls to maximum at centre
None of these
is constant over the cross-section

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Hydraulics and Fluid Mechanics in ME
The flow rate in gear pump

Increases with increase in pressure
Unpredictable
Decreases with increase in pressure
More or less remains constant with increase in pressure

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Hydraulics and Fluid Mechanics in ME
Water is _________ liquid.

Both A and B
None of these
A compressible
An incompressible

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