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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

14.1 sec
5.2 sec
10.4 sec
4.1 sec

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Hydraulics and Fluid Mechanics in ME
Ratio of inertia force to surface Jension is known as

Reynold’s number
Mach number
Weber’s number
Froude number

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Hydraulics and Fluid Mechanics in ME
The total pressure on the top of a closed cylindrical vessel of radius (r) completely filled up with liquid of specific weight (w) and rotating at (ω) rad/s about its vertical axis, is

π w ω² r²/4g
π w ω² r⁴/4g
π w ω² r³/4g
π w ω² r²/2g

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Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

minimum
zero
non-zero finite
maximum

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Hydraulics and Fluid Mechanics in ME
A hydraulic intensifier normally consists of

Two cylinders, two rams and a storage device
Two coaxial rams and two cylinders
A cylinder, a piston, storage tank and control valve
A cylinder and a ram

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Hydraulics and Fluid Mechanics in ME
The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is

3.0 m
2.5 m
4.0 m
2.4 m

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