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Which increased risk follows when volatile liquid rocket propellant experiences rapid depressurization?

A)Detonation via rapid phase explosion
B)Sublimation dominating convective heat transfer
C)Oxidizer condensation halting combustion
D)Turbopump housing embrittlement accelerating fatigue

💡 Explanation

Rapid depressurization can lead to flash boiling and explosive vaporisation— a rapid phase explosion; hence, detonation. The extremely fast vaporisation exceeds the propellant's ability to manage the phase transition via controlled bubbling, because the sudden volume increase generates intense pressure waves, rather than regulated expansion.

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