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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

4.1 sec
14.1 sec
10.4 sec
5.2 sec

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Hydraulics and Fluid Mechanics in ME
Stoke is the unit of

Dynamic viscosity in S. I. units
Kinematic viscosity in C. G. S. units
Dynamic viscosity in M. K. S. units
Kinematic viscosity in M. K. S. units

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Hydraulics and Fluid Mechanics in ME
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

1.585 a.√(2gH)
5.85 aH.√(2g)
0.855 a.√(2gH)
1.855 aH.√(2g)

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Hydraulics and Fluid Mechanics in ME
Kinematic viscosity is dependent upon

Flow
Density
Distance
Pressure

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Hydraulics and Fluid Mechanics in ME
The length of a liquid stream while flowing over a weir __________ at the ends of the sill.

Expands
Contracts
None of these
Does not change

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Hydraulics and Fluid Mechanics in ME
Froude's number is the ratio of inertia force to

Surface tension force
Gravity force
Pressure force
Elastic force

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