Question

please note: leaving this page before submitting your assessment will result in failing this attempt. if you exceed the number of allowed attempts, you will be locked out of your course and required to re-register. 17) which statement best describes the correct way to add coolant to a vehicles radiator? a) coolant that is already a 50/50 mix of antifreeze and water can be added directly to the radiator. b) coolant that is pure antifreeze should be poured into the radiator without mixing. c) coolant should always be mixed with oil before adding to the radiator. d) coolant that is 100% water is recommended for all vehicles.

Explanation:

• Option a: A 50/50 mix of antifreeze and water is a standard ready - to - use coolant mix and can be added directly to the radiator.
• Option b: Pure antifreeze needs to be mixed with water (usually in a 50/50 ratio) as it doesn't provide optimal cooling or freezing protection on its own, so this is incorrect.
• Option c: Coolant should never be mixed with oil as they serve different purposes in the vehicle (coolant for cooling, oil for lubrication) and mixing them would damage the engine, so this is incorrect.
• Option d: 100% water is not recommended as it has poor freezing and boiling point properties compared to a proper coolant mix, so this is incorrect.

Answer:

a) Coolant that is already a 50/50 mix of antifreeze and water can be added directly to the radiator.