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← ScienceWhich risk increases when the bypass valve in a turbojet engine fails?
A)Compressor surge exceeds design limits✓
B)Turbine over-temperature from rich burn
C)Fuel flow reduces toward lean limit
D)Air intake experiences supersonic effects
💡 Explanation
Compressor blades stall because bypass valve failure prevents flow rate regulation which is necessary for stable operation, leading to exceeded limits; stall surge occurs rather than turbine damage because blade flow disturbance happens before changes in the combustion regime.
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