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← ScienceWhich risk increases when a fluid handling system exceeds design Reynolds number?
A)Increased laminar sublayer thickness
B)Predictable pressure drop reduction
C)Onset of turbulent flow instability✓
D)Decreased friction factor at interfaces
💡 Explanation
Exceeding the Reynolds number promotes turbulent transition because inertial forces dominate viscous forces; therefore, turbulent flow instability increases, rather than ordered laminar behavior, and also increases, instead of reducing, friction.
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