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← TechnologyWhich consequence results when lubricating oil supply fails within an internal combustion engine?
A)Piston scoring and cylinder seizure✓
B)Increased fuel injector nozzle clogging
C)Premature catalytic converter deterioration
D)Elevated exhaust manifold backpressure
💡 Explanation
Piston scoring and cylinder seizure occur because the oil film normally prevents direct metal contact, a *boundary lubrication failure*. Therefore, increased friction causes overheating and galling, rather than affecting the fuel injectors or catalytic converter due to lack of lubrication.
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