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Which consequence results when exceeding the design limits of a pulse detonation engine?

A)Inefficient energy transfer occurs
B)Decreased cycle repetition frequency
C)Transition to deflagration mode
D)Sublimation cooling of the casings

💡 Explanation

Transition to deflagration mode results when exceeding design pressure because autoignition cannot be maintained; the mechanism is fuel-air mixing during rapid compression increases temperature, therefore only deflagration can occur, rather than controlled detonation.

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