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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of

0.75
1
1.2
0.8

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Hydraulics and Fluid Mechanics in ME
A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used?

Kaplan turbine
Pelton wheel with two or more nozzles
Pelton wheel with one nozzle
Francis turbine

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Hydraulics and Fluid Mechanics in ME
The fluid forces considered in the Navier Stokes equation are

gravity, pressure and turbulent
pressure, viscous and turbulent
gravity, viscous and turbulent
gravity, pressure and viscous

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Hydraulics and Fluid Mechanics in ME
One cubic metre of water weighs

1000 liters
100 liters
500 liters
250 liters

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

Less than 2000
None of these
More than 2800
Between 2000 and 2800

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Hydraulics and Fluid Mechanics in ME
The specific speed of a centrifugal pump, delivering 750 liters of water per second against a head of 15 meters at 725 r.p.m., is

48.2 r.p.m
24.8 r.p.m.
248 r.p.m
82.4 r.p.m.

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