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Hydraulics and Fluid Mechanics in ME

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

Impulse turbine
Propeller turbine
None of the listed here
Francis turbine

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Hydraulics and Fluid Mechanics in ME
Centre of pressure compared to e.g. is

at same point
above it
above or below depending on area of body
below it

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Hydraulics and Fluid Mechanics in ME
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

equal
less at low temperature and more at high temperature
less
more

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

cohesion
adhesion
viscosity
compressibility

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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
The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of motion of ship is given by

[(Vr + v) v]/ Vr
[2(Vr - v) v]/ Vr²
[2(Vr + v) v]/ Vr²
[(Vr - v) v]/ Vr

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