Solved UPSC CDS/OTA Question
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Q · Fluid MechanicsMedium · 45s
The flow is said to be laminar when Reynolds number is:
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.
Flow in a pipe is laminar if
Re<2000, turbulent if
Re>4000, and transitional in between.
Final Answer: Option A - Less than 2000