When inspecting the engine compartment, you should not: Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in Ohio Do you currently have car insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance. Click here to compare rates from our insurance partner. Question When inspecting the engine compartment, you should not: Answers Check the engine oil level. Check the coolant level in the radiator. Drain the brake fluid. Check the windshield washer fluid level. Explanation When inspecting the engine compartment, you should check the oil level, coolant level, and windshield washer fluid level, among other things. This questions appears in the following tests: District Of Columbia Class B Knowledge Test Illinois HazMat Illinois Passenger Nevada Tank New Hampshire Class B Knowledge Test Oregon Class B Knowledge Test South Dakota Class B Knowledge Test West Virginia Tank Wyoming Class B Knowledge Test