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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator is a device used to store _________ energy which may be supplied to a machine later on.

None of these
Kinetic
Pressure
Strain

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Hydraulics and Fluid Mechanics in ME
The property by virtue of which a liquid opposes relative motion between its different layers is called

Coefficient of viscosity
Surface tension
Viscosity
Osmosis

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Hydraulics and Fluid Mechanics in ME
With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

a circular disc of plate held normal to flow
a streamlined body
a sphere
a cylinder

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is

0.26
0.56
0.36
0.46

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Hydraulics and Fluid Mechanics in ME
For starting an axial flow pump, its delivery valve should be

Could be either open or closed
Open
Depends on starting condition and flow desired
Closed

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Hydraulics and Fluid Mechanics in ME
The units of kinematic viscosity are

kg sec/meter
newton-sec per meter
metres² per sec
newton-sec per meter

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