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← ScienceWhich outcome results when a pulse jet engine flameout occurs?
A)Rapid pressure wave destruction follows✓
B)Fuel-air mixture auto-ignites spontaneously
C)Resonance suddenly overcomes the intake
D)The engine inefficiently burns remaining fuel
💡 Explanation
Detonation occurs after pulse jet flameout because uncontrolled auto-ignition initiates a supersonic deflagration known as Deflagration-to-Detonation Transition (DDT); therefore, destructive pressure waves become present, rather than a controlled burn.
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