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Which risk increases when connecting rod bearing clearance in an internal combustion engine decreases below specification?

A)Crankshaft seizure due to oil starvation
B)Increased fuel consumption at low RPM
C)Reduced engine power at high RPM
D)Increased exhaust emissions of NOx

💡 Explanation

Crankshaft seizure becomes more likely with decreased bearing clearance because insufficient space impairs oil flow, generating heat and causing direct metal-to-metal contact; this then causes seizure rather than excess emissions because of friction increases.

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