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Mechanical Engineering : Hydraulics and Fluid Mechanics - Quiz(MCQ)
When is a fluid called turbulent?
A)
High viscosity of fluid
B)
The density of the fluid is low
C)
Reynolds number is greater than 2000
D)
Reynolds number is less than 2000

Correct Answer : Option (D) :   Reynolds number is less than 2000


Explanation : Reynolds number is a dimensionless quantity. It helps to predict the flow pattern in fluid mechanics. At high Reynolds number, the flow has a very high density, due to which the value of Reynolds number is greater than 2000.

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