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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Jet pump
Hydraulic coupling
Air lift pump
Hydraulic press

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Hydraulics and Fluid Mechanics in ME
General energy equation holds for

steady flow
turbulent flow
non-uniform flow
laminar flow

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Hydraulics and Fluid Mechanics in ME
The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.

None of these
Product
Difference
Sum

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Hydraulics and Fluid Mechanics in ME
The maximum thickness of boundary layer in a pipe of radius r is

2r
r
r/2

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Hydraulics and Fluid Mechanics in ME
For pipes, turbulent flow occurs when Reynolds number is

less than 2000
more than 4000
between 2000 and 4000
less than 4000

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Hydraulics and Fluid Mechanics in ME
Bulk modulus of a fluid is the ratio of

Increase in pressure to the volumetric strain
Shear stress to shear strain
Critical velocity to the viscosity of fluid
Increase in volume to the viscosity of fluid

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