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← TechnologyWhich risk increases when aircraft altitude is excessively reduced after ice accumulation?
A)Adverse pressure gradient formation✓
B)Hypersonic boundary layer transition
C)Spanwise flow stall initiation
D)Flap-induced flutter escalation
💡 Explanation
Adverse pressure gradient formation increases because ice disrupts laminar flow, creating turbulent flow and early boundary layer separation; therefore stall speed increases precipitously rather than a gradual change with altitude loss alone due to mass conservation.
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