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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The depth of the bucket for a Pelton wheel is generally _________ the diameter of jet.

1.8 times
Equal to
Double
1.2 times

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Hydraulics and Fluid Mechanics in ME
Viscous force is the __________ of shear stress due to viscosity and cross-section area of flow.

Ratio
Product
Sum
Different

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Hydraulics and Fluid Mechanics in ME
The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called

Newton's law of resistance
Newton's law of cooling
Newton's law of motion
Newton's law of viscosity

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

very low pressure
pressure in pipes, channels etc
atmospheric pressure
difference of pressure between two points

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Hydraulics and Fluid Mechanics in ME
Metacentre is the point of intersection of

All of these
vertical upward force through e.g. of body and center line of body
buoyant force and the center line of body
mid point between e.g. and center of buoyancy

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Hydraulics and Fluid Mechanics in ME
A flow is called hyper-sonic, if the Mach number is

None of these
Less than unity
Between 1 and 6
Unity

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