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Which outcome occurs when fluid velocity exceeds design limits in aircraft fuel lines?

A)Increased heat exchanger efficiency
B)Unstable fuel pressure oscillations
C)Laminar boundary layer thickening
D)Decreased pump cavitation risk

💡 Explanation

Unstable fuel pressure results because exceeding designed velocity induces turbulent flow within the fuel lines, leading to pressure fluctuations according to the "Rayleigh-Plesset equation"; therefore, oscillations occur, rather than stable laminar flow.

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