If the coolant temperature is too low as it passes through internally cooled fuel injectors, the injectors can be damaged by __________.

Correct Answer: Option B — corrosion of the nozzle tip

Internally cooled fuel injectors require proper thermal balance. If coolant temperatures drop excessively, moisture from combustion gases can condense on the cooler nozzle tips, combining with sulfur compounds to promote aggressive external and internal corrosion, degrading spray patterns.