What is the coolant mixture composition used in the system?

What is the coolant mixture composition used in the system?

• A. 60% clean water and 40% ethylene glycol
• B. 50% clean water and 50% ethylene glycol
• C. 40% clean water and 60% ethylene glycol
• D. 70% clean water and 30% ethylene glycol

Answer: (C)

Cooling systems rely on a mix of ethylene glycol antifreeze and water to control temperatures and protect against corrosion. Ethylene glycol lowers the freezing point and raises the boiling point of the coolant, while water provides effective heat transfer. In this system, the specified blend is sixty percent ethylene glycol and forty percent water, which gives strong freeze protection and a higher boiling point, matching the system’s protection and operation requirements. Using a higher glycol content also helps prevent freezing in very cold conditions, which is why this ratio is chosen over blends with more water. The water component is described as clean water to reduce mineral buildup and corrosion. The other mixtures would either weaken freeze protection or alter heat transfer in a way that isn’t aligned with the system’s design.

Cooling systems rely on a mix of ethylene glycol antifreeze and water to control temperatures and protect against corrosion. Ethylene glycol lowers the freezing point and raises the boiling point of the coolant, while water provides effective heat transfer. In this system, the specified blend is sixty percent ethylene glycol and forty percent water, which gives strong freeze protection and a higher boiling point, matching the system’s protection and operation requirements. Using a higher glycol content also helps prevent freezing in very cold conditions, which is why this ratio is chosen over blends with more water. The water component is described as clean water to reduce mineral buildup and corrosion. The other mixtures would either weaken freeze protection or alter heat transfer in a way that isn’t aligned with the system’s design.