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← ScienceWhich risk is increased if a municipal water pipe's Reynolds number exceeds 4000?
A)Onset of turbulent fluid flow✓
B)Increased laminar boundary layer thickness
C)Reduced pressure from static head
D)Decreased average fluid velocity
💡 Explanation
Turbulent flow occurs because, at a Reynolds number above 4000, inertial forces dominate viscous forces, leading to chaotic flow. Therefore turbulent flow is the consequence, rather than laminar flow, occurring at lower numbers.
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