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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

absolute pressure
flow
rotation
velocity of fluid

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Hydraulics and Fluid Mechanics in ME
A tank of uniform cross-sectional area (A) containing liquid upto height (H1) has an orifice of cross-sectional area (a) at its bottom. The time required to empty the tank completely will be

(2A√H₁)/(Cd × a√2g)
(2AH₁²)/(Cd × a√2g)
(2AH₁)/(Cd × a√2g)
(2AH₁3/2)/(Cd × a√2g)

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Hydraulics and Fluid Mechanics in ME
A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow.

None of these
Viscous
Compressible
Incompressible

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Hydraulics and Fluid Mechanics in ME
An ideal flow of any fluid must satisfy

boundary layer theory
continuity equation
Pascal law
Newton’s law of viscosity

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Hydraulics and Fluid Mechanics in ME
When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

1
2
43924

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Hydraulics and Fluid Mechanics in ME
The volume of a fluid __________ as the pressure increases.

None of these
Remains same
Increases
Decreases

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