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Which consequence results when thermal energy input increases drastically within a Sterling engine?

A)Engine temperature rises uncontrollably
B)Reduced volumetric expansion occurs rapidly
C)Increased mechanical wear accelerates greatly
D)Isothermal compression happens discontinuously

💡 Explanation

Increased thermal energy causes accelerated mechanical wear due to increased frictional forces; this is caused by greater pressure and velocity within the engine, a form of tribological failure. Therefore wear accelerates, rather than thermal runaway or reduced expansion because lubrication systems would struggle.

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