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← TechnologyWhich 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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