ASVAB Automotive Information Practice Test 88677

Question 1 of 5

Modern car engines are cooled by liquid which circulates through the engine block and cylinder heads absorbing excess heat. This liquid is made up of half water and half antifreeze (commonly, ethylene glycol) which both keeps the water from freezing at low temperatures and raises its boiling point making heat transfer more efficient.

Which of the following is not a function of antifreeze?

lubricates the cooling system

keeps water from freezing at low temperatures

aids heat transfer

raises the boiling point of water