What must be true of a bus emergency exit door or window before the bus is driven?
Correct answer: D – It must be closed
The Oregon manual instructs drivers never to operate a bus with an emergency exit door or window open. Open emergency exits should be closed during the exterior inspection before the bus moves. This rule does not prevent certain emergency roof hatches from being locked in a partly open ventilation position, but those hatches should not routinely be left open.
Source: Oregon Commercial Driver Manual — § 4.1.2, “Access Doors and Panels”, Oregon Commercial Driver Manual — § 4.1.3, “Bus Interior”, Oregon Commercial Driver Manual — § 4.1.4, “Roof Hatches”

