Using a cooling water temperature of 225°F (107.2°C), instead of 180°F (82.2°C) in an auxiliary diesel engine, will __________.

Correct Answer: Option C — reduce the opportunity for the formation of sulfuric acid in the cylinder bore exhaust passages

Elevating jacket water temperature to 225°F maintains cylinder liner wall temperatures above the dew point of sulfurous and sulfuric acid vapors formed during combustion, significantly reducing corrosive wear in the cylinder bore and exhaust passages when burning high-sulfur fuels.