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

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Hydraulics and Fluid Mechanics in ME
A flow through an expanding tube at constant rate is called

Steady uniform flow
Unsteady uniform flow
Steady non-uniform flow
Unsteady non-uniform flow

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Hydraulics and Fluid Mechanics in ME
The gross or total head of the turbine is the ___________ of the water levels at the head race and tail race.

None of these
Difference
Sum
Product

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Hydraulics and Fluid Mechanics in ME
In a Kaplan turbine runner, the numbers of blades are generally between

2 to 4
4 to 8
16 to 24
8 to 16

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Hydraulics and Fluid Mechanics in ME
The viscosity of a liquid __________ its rate of flow through a hole in a vessel.

Both A and B
Effects
Does not effect
None of these

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Hydraulics and Fluid Mechanics in ME
The mass per unit volume of a liquid at a standard temperature and pressure is called

Specific weight
None of these
Specific gravity
Mass density

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