Question 81Motor Plants - QMED70% to pass
Ethylene glycol, when used as a coolant in a closed cooling system for a diesel engine, is more advantageous than untreated raw water because it_______________.
AI Explanation
The correct answer is B) has a lower freezing point and higher boiling point.
Ethylene glycol is commonly used as a coolant in closed cooling systems for diesel engines because it has a lower freezing point and higher boiling point compared to untreated raw water. This allows the coolant to effectively absorb and dissipate heat, preventing the cooling system from freezing in cold weather and boiling over in hot weather. The other options are incorrect because they do not accurately describe the key advantages of using ethylene glycol as a coolant over raw water.
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