Question When checking the engine compartment: Answers The parking brake should not be engaged. Wheels should be chocked. The engine should be running. The gearshift should be in first gear. Explanation Before inspecting the engine compartment, make sure that the parking brakes are on and/or the wheels are chocked. Check the engine compartment before entering the cab and starting the engine. Take a FREE Practice Test Now This questions appears in the following tests: Mississippi Knowledge Test Class A , New York Knowledge Test Class A , West Virginia Knowledge Test Class A , Montana Double ,