When may a bus be driven with an emergency exit door or emergency exit window open?
Correct answer: D – Never
The Utah handbook instructs bus drivers never to operate with an emergency exit door or emergency exit window open. Emergency exits must be closed during the exterior inspection before driving. Drivers must also verify that exit handles, warning lights, and required emergency-exit signs are in proper condition.
Source: Utah Commercial Driver License Handbook — § 4.1.2, “Access Doors and Panels”, Utah Commercial Driver License Handbook — § 4.1.3, “Bus Interior”

