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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
A structure, whose width is __________ the width of the channel, is called a flumed structure.

More than
None of these
Equal
Less than

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Hydraulics and Fluid Mechanics in ME
The number of buckets on the periphery of a Pelton wheel is given by

(D/2d) + 15
(D/2d) + 5
(D/2d) + 10
(D/2d) + 20

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Hydraulics and Fluid Mechanics in ME
The increase of temperature results in

increase in viscosity of gas
decrease in viscosity of gas
decrease in viscosity of liquid
increase in viscosity of liquid

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Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Higher
None of these
Lower
Same as

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Euler's number
Weber's number
Reynold's number
Froude's number

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