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← ScienceWhich outcome leads when a heat engine's exhaust valve sticks open?
A)Reduced engine efficiency and overheating✓
B)Increased compression chamber pressure
C)Lubrication oil breakdown accelerates rapidly
D)Fuel injection timing becomes erratic
💡 Explanation
Inefficient exhaust scavenging and residual hot gases hinders cylinder cooling under the thermodynamic cycle because heat is retained into each cycle causing thermal inefficiencies; therefore, decreased engine performance and overheating occur, rather than only affecting pressure increase.
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