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Fluid Mechanics

Fluid Mechanics
Laminar flow is characterised by the nonexistence of

Deviating velocities
Eddies
All of these
Pressure fluctuation

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Fluid Mechanics
The value of critical Reynolds number for pipe flow is

1300
10000
None of these
100000

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Fluid Mechanics
What causes cavitation in centrifugal pump?

Low suction pressure
Low barometric pressure
High suction pressure
High suction velocity

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Fluid Mechanics
In laminar flow through a round tube, the discharge varies

Inversely as the pressure drop
As the square of the radius
Inversely as the viscosity
Linearly as the viscosity

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Fluid Mechanics
Transition from laminar flow to turbulent flow is aided by the

Surface roughness and curvature (i.e.sharp corners)
Pressure gradient and the compressibility of the flowing medium
Vibration
All of these

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Fluid Mechanics
A lubricant 100 times more viscous than water would have a viscosity (in Pa.s)

10
1
0.01
0.1

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MORE MCQ ON Fluid Mechanics

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