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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a free vortex motion, the radial component of velocity everywhere is

zero
maximum
minimum
non-zero and finite

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Hydraulics and Fluid Mechanics in ME
An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called

Weir
Orifice
Notch
None of these

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Hydraulics and Fluid Mechanics in ME
The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is

0.116 stoke
0.611 stoke
0.0116 stoke
0.0611 stoke

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Hydraulics and Fluid Mechanics in ME
The height of a water column equivalent to a pressure of 0.15 MPa is

15.3 m
45.3 m
25.3 m
35.3 m

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Hydraulics and Fluid Mechanics in ME
Choose the correct relationship

dynamicviscosity = kinematicviscosity x density
kinematicviscosity = dynamicviscosity x density
gravity = specific gravity x density
specific gravity = gravity x density

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Hydraulics and Fluid Mechanics in ME
The factional resistance of a pipe varies approximately with __________ of the liquid.

Cube of velocity
Velocity
Square of velocity
Pressure

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