A pre-trip inspection should include: Question A pre-trip inspection should include: Answers A check of the engine oil level. Removing coolant. Spraying WD-40 into the air filter. Removing a tire. Explanation A pre-trip inspection should include a check of components in the engine compartment, including a check of the engine oil level. This questions appears in the following tests: Illinois HazMat Illinois Passenger Mississippi Class A Knowledge Test
