Hydraulics and Fluid Mechanics in ME
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm". The pressure at 2.5 m below the oil surface will be

4 m of water column
2 metres of water column
3.5 metres of water column
3 metres of water column

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Hydraulics and Fluid Mechanics in ME
The meatcentric height is the distance between the

Metacentre and centre of buoyancy
Centre of gravity of the floating body and the centre of buoyancy
Original centre of buoyancy and new centre of buoyancy
Centre of gravity of the floating body and the metacentre

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Hydraulics and Fluid Mechanics in ME
For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal

all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity
ratio of inertial force to force due to viscosity
ratio of inertial force to force due to gravitation
ratio of inertial force to force due to surface tension

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