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← TechnologyWhich outcome leads to potential compressor stall in a gas turbine engine at high altitudes?
A)Increased pressure ratio across stages
B)Decreased air density at intake✓
C)Raised turbine inlet temperature
D)Decreased fuel flow to combustor
💡 Explanation
Compressor stall risk is increased because decreased air density at the intake reduces mass flow. This causes increased angles of attack on compressor blades, therefore causing boundary layer separation (blade stall) rather than optimal compression, under ideal inlet air density.
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