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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The volume of a fluid __________ as the pressure increases.

Remains same
Decreases
Increases
None of these

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Hydraulics and Fluid Mechanics in ME
The major loss of energy in long pipes is due to

sudden contraction
gradual contraction or enlargement
sudden enlargement
friction

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Hydraulics and Fluid Mechanics in ME
The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific weight of water in N/m3, a = Cross-sectional area of jet in m², and V = Velocity of jet in m/s)

waV / 2g
waV² / 2g
waV² / g
waV / g

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Hydraulics and Fluid Mechanics in ME
The value of bulk modulus of a fluid is required to determine

Froude's number
Mach number
Reynold's number
Euler's number

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Hydraulics and Fluid Mechanics in ME
The motion of air mass in a tornado is a

forced vortex motion
forced vortex at center and free vortex outside
free vortex motion
free vortex at center and forced vortex outside

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Hydraulics and Fluid Mechanics in ME
The centre of gravity of the volume of the liquid displaced is called

Metacentre
None of the listed here
Centre of buoyancy
Centre of pressure

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