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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)

(1 + cos φ)/2
(1 - cos φ)/2
(1 - sin φ)/2
(1 + sin φ)/2

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Hydraulics and Fluid Mechanics in ME
The flow in which each liquid particle has a definite path and their paths do not cross each other is called

one dimensional flow
streamline flow
turbulent flow
uniform flow

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Hydraulics and Fluid Mechanics in ME
For 450 m head of water, _________ shall be used.

Kaplan turbine
Pelton wheel
Francis turbine
None of these

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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
Low pressure
High velocity
Low velocity

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Hydraulics and Fluid Mechanics in ME
Head developed by a centrifugal pump is

Proportional to diameter of impeller
Proportional to speed of impeller
None of these
Proportional to diameter and speed of impeller

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Hydraulics and Fluid Mechanics in ME
The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared to that when the plate is normal to jet, is

43832
1
1/√2
√2

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