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Hydraulics and Fluid Mechanics in ME

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

Three times
Four times
Five times
Double

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Hydraulics and Fluid Mechanics in ME
High specific speed of a pump implies it is

Mixed flow pump
Any one of the above
Centrifugal pump
Axial flow pump

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Hydraulics and Fluid Mechanics in ME
The number of buckets on the periphery of a Pelton wheel is given by

(D/2d) + 15
(D/2d) + 10
(D/2d) + 20
(D/2d) + 5

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Hydraulics and Fluid Mechanics in ME
Falling drops of water become spheres due to the property of

adhesion
surface tension
cohesion
viscosity

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m3

At 4°C temperature
At mean sea level
At normal pressure of 760 mm
All of the listed here

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Hydraulics and Fluid Mechanics in ME
The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)

waV / 2g
waV / g
waV² / g
waV² / 2g

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