Solved UPSC CDS/OTA Question
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Q · Fluid MechanicsMedium · 45s
Which dimensionless number signifies the ratio of inertial forces to viscous forces? Option: 21
TopicFluid Mechanics
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Reynolds number = (Inertial forces) / (Viscous forces).
21
Final Answer: Option (b