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Which outcome impairs a turbojet engine during ascent?

A)Compressor surge inducing flow reversal
B)Combustion instability causing thermal runaway
C)Nozzle erosion decreasing thrust efficiency
D)Turbine creep impacting blade clearance

💡 Explanation

Compressor surge disrupts airflow because reduced air density leads to insufficient pressure rise across compressor blades; therefore flow reversals and stalls occur, rather than balanced combustion or turbine damage in properly controlled engines.

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