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Question

The Reynolds number of a flow is the ratio of :
  1. Gravity force to viscous force
  2. Gravity force to pressure force
  3. Viscous force to pressure forces
  4. Inertial force to viscous force

A
Gravity force to viscous force
B
Viscous force to pressure forces
C
Gravity force to pressure force
D
Inertial force to viscous force
Solution
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Answer is C.

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