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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of buoyancy
center of gravity
center of pressure
water surface

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Hydraulics and Fluid Mechanics in ME
The runaway speed of a hydraulic turbine is the speed

At which the turbine will run freely without load
At full load
Corresponding to maximum overload permissible
At which there will be no damage to the runner

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Hydraulics and Fluid Mechanics in ME
A nozzle placed at the end of a water pipe line discharges water at a

High pressure
High velocity
Low velocity
Low pressure

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Hydraulics and Fluid Mechanics in ME
The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is

8 km
4 km
32 km
20 km

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Hydraulics and Fluid Mechanics in ME
The total pressure on the top of a closed cylindrical vessel completely filled up with a liquid is

Inversely proportional to (radius)2
Directly proportional to (radius)2
Inversely proportional to (radius)4
Directly proportional to (radius)4

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Hydraulics and Fluid Mechanics in ME
Liquids transmit pressure equally in all the directions. This is according to

Pascal's law
Boyle's law
Archimedes principle
Newton's formula

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