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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Water is _________ liquid.

Both A and B
An incompressible
A compressible
None of these

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Hydraulics and Fluid Mechanics in ME
The bulk modulus of elasticity with increase in pressure

increases
increases first upto certain limit and then decreases
decreases
remains constant

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a straight line, is called __________ dimensional flow.

Three
One
Four
Two

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Hydraulics and Fluid Mechanics in ME
The total pressure on the top of a closed cylindrical vessel of radius (r) completely filled up with liquid of specific weight (w) and rotating at (ω) rad/s about its vertical axis, is

π w ω² r²/4g
π w ω² r²/2g
π w ω² r³/4g
π w ω² r⁴/4g

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Hydraulics and Fluid Mechanics in ME
Capillary action is due to the

Adhesion of the liquid molecules and the molecules on the surface of a solid
All of the listed here
Cohesion of the liquid
Surface tension

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is generally used to pump highly viscous fluid?

Reciprocating pump
Centrifugal pump
Screw pump
Air lift pump

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