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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.)

(2 L.A.N)/60
L.A.N
2 L.A.N
(L.A.N)/60

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Hydraulics and Fluid Mechanics in ME
In a free nappe,

The pressure below the nappe is negative
The pressure above the nappe is atmospheric
The pressure below the nappe is atmospheric
The pressure above the nappe is negative

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a pressure gauge is called

Mean pressure
Absolute pressure
Atmospheric pressure
Gauge pressure

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Hydraulics and Fluid Mechanics in ME
When the flow parameters at any given instant remain same at every point, then flow is said to be

uniform
laminar
quasi static
steady state

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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.

None of these
Strain
Kinetic
Pressure

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Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

non-zero finite
maximum
minimum
zero

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