What should be done to prevent an engine fire from spreading? Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question What should be done to prevent an engine fire from spreading? Answers Leave the engine turned on Turn the engine turned off Open the hood Explanation To help stop an engine fire from spreading, turn the engine off as soon as possible. This questions appears in the following tests: Iowa Passenger Oklahoma Class B Knowledge Test Oklahoma Passenger