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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

Potential line
Path line
Stream line
Steak line

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Hydraulics and Fluid Mechanics in ME
A flow is called sub-sonic, if the Mach number is

Between 1 and 6
Less than unity
More than 6
Unity

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Hydraulics and Fluid Mechanics in ME
In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be

Partially running full
Running free
Partially running free
Running full

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Hydraulics and Fluid Mechanics in ME
The value of mass density in kg-sec-V-m⁴ for water at 0°C is

1000
1
100.9
101.9

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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

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

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

Decreases
Increases
Remain same
None of these

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