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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Pascal-second is the unit of

pressure
surface tension
dynamic viscosity
kinematic viscosity

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Hydraulics and Fluid Mechanics in ME
Which of the following velocity potentials satisfies continuity equation ?

x2y
x2-y2
x2 + y2
cosx

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Hydraulics and Fluid Mechanics in ME
In the case of steady flow of a fluid, the acceleration of any fluid particle is

constant
zero
zero under limiting conditions
variable

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Hydraulics and Fluid Mechanics in ME
In a short cylindrical external mouthpiece, the vena contracta occurs at a distance __________ the diameter of the orifice from the outlet of orifice.

One-third
One-fourth
Equal to
One-half

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Hydraulics and Fluid Mechanics in ME
Mercury does not wet glass. This is due to property of liquid known as

viscosity
adhesion
cohesion
surface tension

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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.

Kinetic
Strain
Pressure
None of these

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