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

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m3

All of the listed here
At mean sea level
At 4°C temperature
At normal pressure of 760 mm

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Hydraulics and Fluid Mechanics in ME
The two important forces for a floating body are

buoyancy, inertial
buoyancy, gravity
buoyancy, pressure
inertial, gravity

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Hydraulics and Fluid Mechanics in ME
The force present in a moving liquid is

All of these
Gravity force
Inertia force
Viscous force

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Hydraulics and Fluid Mechanics in ME
A point, in a compressible flow where the velocity of fluid is zero, is called

Critical point
None of the listed here
Vena contracta
Stagnation point

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

None of these
Decreases
Increases
Remain same

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