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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The meatcentric height of a ship is 0.6 m and the radius of gyration is 4 m. The time of rolling of a ship is

5.2 sec
4.1 sec
14.1 sec
10.4 sec

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Hydraulics and Fluid Mechanics in ME
The Bernoulli's equation is based on the assumption that

All of these
The velocity of flow is uniform across any cross-section of the pipe
There is no loss of energy of the liquid flowing
No force except gravity acts on the fluid

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Hydraulics and Fluid Mechanics in ME
The rise of liquid along the walls of a revolving cylinder about the initial level is _________ the depression of the liquid at the axis of rotation.

Less than
None of these
More than
Same as

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Hydraulics and Fluid Mechanics in ME
The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe)

H/(H + hf )
H/(H - hf )
(H - hf )/H
(H + hf )/H

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

From sides
At the canter
At the top
At the bottom

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Hydraulics and Fluid Mechanics in ME
A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called

Steady flow
Streamline flow
Turbulent flow
Uniform flow

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