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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The unit power developed by a turbine is (where P = Power developed by the turbine under a head of water (H).

P/ H²
P/ H3/2
P/ H
P/ √H

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Hydraulics and Fluid Mechanics in ME
A weir is said to be broad crested weir, if the width of the crest of the weir is ________ half the height of water above the weir crest.

Equal to
Less than
More than
None of these

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Hydraulics and Fluid Mechanics in ME
The mercury does not wet the glass. This is due to the property of the liquid known as

Adhesion
Viscosity
Surface tension
Cohesion

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

Up-thrust
Metacentre
Reaction
Buoyancy

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Hydraulics and Fluid Mechanics in ME
The specific weight of sea water is __________ that of pure water.

More than
Less than
Same as
None of these

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Hydraulics and Fluid Mechanics in ME
The efficiency of a hydraulic press is given by (where W = Weight lifted by ram, P = Force applied on plunger, A = Area of ram, and a = Area of plunger)

(W/p) × (A/a)
(W/p) × (a/A)
(p/W) × (a/A)
(p/W) × (A/a)

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