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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called

reaction
metacentre
upthrust
buoyancy

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water travelling out of opening in a tank filled with water is proportional to

h2
V/T
h2
head of water (h)

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Hydraulics and Fluid Mechanics in ME
For centrifugal pump impeller, the maximum value of the vane exit angle is

10° to 15°
15° to 20°
20° to 25°
25° to 30°

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

Five times
Double
Three times
Four times

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Hydraulics and Fluid Mechanics in ME
The specific speed (Ns) of a centrifugal pump is given by

(N√Q)/H2/3
(N√Q)/H5/4
(N√Q)/H3/4
(N√Q)/H

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Hydraulics and Fluid Mechanics in ME
If the surface of liquid is convex, men

There is no cohesion pressure
Cohesion pressure is negligible
Cohesion pressure is increased
Cohesion pressure is decreased

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