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

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Hydraulics and Fluid Mechanics in ME
Stream lines and path lines always coincide in case of

turbulent flow
steady flow
laminar flow
uniform flow

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Hydraulics and Fluid Mechanics in ME
General energy equation holds for

turbulent flow
steady flow
laminar flow
non-uniform flow

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Hydraulics and Fluid Mechanics in ME
Which of the following manometer has highest sensitivity

U-tube with mercury
inclined U-tube
U-tube with water
micro-manometer with water

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Hydraulics and Fluid Mechanics in ME
When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface.

None of these
Concave
Convex
Plane

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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

turbulent flow
uniform flow
one dimensional flow
streamline flow

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