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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A point, in a compressible flow where the velocity of fluid is zero, is called

Stagnation point
Critical point
None of the listed here
Vena contracta

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Hydraulics and Fluid Mechanics in ME
The specific speed from 160 to 500 r.p.m. of a centrifugal pump indicates that the pump is

Medium speed with radial flow at outlet
Slow speed with radial flow at outlet
High speed with radial flow at outlet
High speed with axial flow at outlet

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Hydraulics and Fluid Mechanics in ME
The cavitation in reaction turbines is avoided, to a great extent by

Installing the turbine below the tail race level
Using stainless steel runner of the turbine
All of these
Providing highly polished blades to the runner

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Hydraulics and Fluid Mechanics in ME
Barometer is used to measure

Atmospheric pressure
Very low pressure
Pressure in pipes, channels etc.
Difference of pressure between two points

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel develops 1750 kW under a head of 100 meters while running at 200 r.p.m. and discharging 2500 liters of water per second. The unit speed of the wheel is

10 r.p.m.
80 r.p.m.
20 r.p.m.
40 r.p.m.

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

Equal to
More than
None of the listed here
Less than

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