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Which outcome results when laminar flow transitions to turbulence?

A)Increased drag force on submerged objects
B)Decreased pipe friction losses significantly
C)Enhanced heat transfer across streamlines
D)Reduced mixing of different fluid layers

💡 Explanation

Increased drag occurs because transitioning from laminar to turbulent flow involves increased momentum transfer due to small chaotic changes known as eddies; this increases the Reynolds number toward and beyond the critical point. Therefore, drag increases rather than reduces friction losses because laminar flow remains more streamlined.

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