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← ScienceWhich outcome occurs when exhaust turbine blades in a turbocharger experience prolonged exposure to extremely high temperatures?
A)Creep deformation, reducing efficiency✓
B)Spark knock, causing engine damage
C)Thermal shock, cracking the manifold
D)Bearing seizure, halting oil flow
💡 Explanation
When turbine blades endure high temperatures over extended periods, creep deformation—slow plastic deformation under stress—occurs because the increased thermal energy allows atoms to move within the metal lattice, reducing blade efficiency. Therefore creep deformation results, rather than knock, shock or seizure, requiring different mechanical circumstances.
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