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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following is not a reaction turbine?

Fourneyron turbine
Pelton wheel
Thomson's turbine
Journal turbine

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Hydraulics and Fluid Mechanics in ME
The power transmitted through the nozzle is maximum when the head lost due to friction in the pipe is __________ of the total supply head.

One-third
Two-third
None of these
One-half

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Hydraulics and Fluid Mechanics in ME
The force exerted by a jet of water (in a direction normal to flow) impinging on a fixed plate inclined at an angle θ with the jet is

(waV/g) × sin θ
(waV²/2g) × sin 2θ
(waV²/g) × sin θ
(waV/2g) × sin θ

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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
Low velocity
High velocity

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Hydraulics and Fluid Mechanics in ME
The major loss of energy in long pipes is due to

gradual contraction or enlargement
sudden enlargement
friction
sudden contraction

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Hydraulics and Fluid Mechanics in ME
During the opening of a valve in a pipe line, the flow is

Uniform
Steady
Unsteady
Laminar

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