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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the liquid enters the pump

At the bottom
From sides
At the canter
At the top

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

None of these
Free
Full
Partially

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Hydraulics and Fluid Mechanics in ME
A balloon lifting in air follows the following principle

All of these
principle of buoyancy
law of gravitation
Archimedes principle

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Hydraulics and Fluid Mechanics in ME
The speed of a pressure wave through a pipe depends upon

the original head
the bulk modulus for the fluid
the length of pipe
the viscosity of fluid

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Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)

(2/3) Cd × b × √(2g) × H3/2
(2/3) Cd × b × √(2g) × H
(2/3) Cd × b × √(2gH)
(2/3) Cd × b × √(2g) × H2

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Hydraulics and Fluid Mechanics in ME
Which of the following is used to measure the discharge ?

venturimeter
hotwire anemometer
current meter
pitot tube

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