Question

final exam
you must score at least 80% to earn your certificate of completion. a failing score will result in course failure and forfeiture of your course fee—no refunds will be issued.

what are two main functions of coolant (antifreeze) in your vehicles engine cooling system?
○ cleans the fuel injectors
○ powers the air conditioning system
○ prevents freezing in winter and overheating in all seasons

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Explanation:

The main functions of coolant (antifreeze) in a vehicle's engine cooling system are to prevent the liquid from freezing in cold temperatures (winter) and to absorb and dissipate heat to avoid engine overheating in all seasons. The other options are unrelated: cleaning fuel injectors is not a coolant function, and powering the AC system is done by other components.

Answer:

Prevents freezing in winter and overheating in all seasons