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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Medium specific speed of turbine implies it is

Impulse turbine
Propeller turbine
Francis turbine
Any one of the above

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of discharge is __________ the value of coefficient of velocity.

Same as
More than
Less than
None of these

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Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

0.417 H5/2
7.141 H5/2
1.417 H5/2
4.171 H5/2

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Hydraulics and Fluid Mechanics in ME
Motion of a liquid in a volute casing of a centrifugal pump is an example of

Forced spiral vortex flow
Rotational flow
Radial
Spiral vortex flow

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Hydraulics and Fluid Mechanics in ME
The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity.

Ax̅ / IG above
Ax̅ / IG below
IG / Ax̅ below
IG / Ax̅ above

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Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Double
Eight times
Sixteen times
Four times

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