Final answer:
When checking radiator coolant levels by removing the radiator cap, the coolant level should be even with the top of the filler neck. (option C)
Step-by-step explanation:
The correct response is that the coolant level should be even with the top of the filler neck when checking the radiator coolant levels. Additionally, to calculate the volume of coolant that would overflow upon heating, the coefficient of expansion and temperature change is used in a formula.
This ensures that there is enough coolant in the system to circulate without causing overpressure by having too much liquid. Regarding the volume expansion of coolant, we use the formula ΔV = βV₀ΔT, where ΔV is the volume change, β is the volume coefficient of expansion, V₀ is the initial volume, and ΔT is the temperature change.
For a radiator filled to a 16.0-L capacity at 10.0°C, with a β of 400*10-6/°C, and a temperature increase to 95.0°C, the calculation would show the volume of coolant that will overflow when the system reaches operating temperature.