Which consequence results when an ultra-high-bypass turbofan engine exceeds max operating altitude?

💡 Explanation

Flameout occurs because at high altitudes, low air density leads to a significantly decreased mass flow rate through the engine. This causes the fuel-air _ratio_ to become excessively lean; therefore the engine can flameout, rather than suffer mechanical damage or icing issues in normally warm air.

• Which outcome occurs when a submarine's very low frequency (VLF) antenna attempts underwater radio propagation?
• Which risk increases when operating a multi-strand superconducting cable near its critical current?
• Which mode ensues when Reynolds number elevates excessively?
• Which outcome results when fusion within a reactor core drops below the Lawson criterion?
• Which consequence results when optical stress measurements neglect material birefringence?
• Which outcome occurs when a dielectric material's temperature in high-voltage capacitor exceeds its Curie temperature?