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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem

Venturimeter
pitot tube
Orifice plate
All of these

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Hydraulics and Fluid Mechanics in ME
An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.

Directly proportional
Inversely proportional
Equal to
None of these

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Hydraulics and Fluid Mechanics in ME
When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid

Falls on the front end
Becomes curved
Falls on the back end
Remains horizontal

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Hydraulics and Fluid Mechanics in ME
The depth of the bucket for a Pelton wheel is generally _________ the diameter of jet.

Double
Equal to
1.2 times
1.8 times

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Hydraulics and Fluid Mechanics in ME
The efficiency of a Pelton wheel working under constant head ________ with the increase in power.

Remain same
None of these
Decreases
Increases

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Hydraulics and Fluid Mechanics in ME
Ratio of inertia force to elastic force is known as

Reynold’s number
Weber’s number
Froude number
Mach number

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