Question When checking the exhaust system, it should be: Answers Loose. Leaking. Fastened securely. Cracked. Explanation When checking the exhaust system, you should verify that no parts of the system are loose, broken, or missing. Take a FREE Practice Test Now This questions appears in the following tests: Georgia Knowledge Test Class A , Montana Knowledge Test Class A , South Dakota Knowledge Test Class A , District Of Columbia Knowledge Test Class B , Oregon Knowledge Test Class B ,