Question Brake linings should be: Answers Loose. Free of oil. Soft. Explanation Brake linings should not be loose or soaked with oil or grease. They shouldn't be dangerously thin. This questions appears in the following tests: Arkansas Air Brakes California Air Brakes Delaware Air Brakes Idaho Air Brakes Louisiana Bus Michigan Tank Mississippi Class A Knowledge Test Mississippi Double Missouri Class A Knowledge Test Missouri Air Brakes Montana Class A Knowledge Test Montana Air Brakes Nevada Air Brakes New Hampshire Air Brakes Ohio Class B Knowledge Test Ohio Air Brakes Oklahoma Class A Knowledge Test Rhode Island Class A Knowledge Test Washington Class A Knowledge Test Washington Class B Knowledge Test Washington Air Brakes Wisconsin Tank