Vehicle Inspection and Basic Control
The Vehicle Inspection and Basic Control domain tests the school-bus-specific items you must check before each trip and the low-speed skills that keep a long, heavy bus out of trouble: tail swing, off-tracking, mirror use, and backing.
Pre-trip items that are easy to miss
Beyond the standard CDL items - service brake, parking brake, steering, tires, lights, horn, wipers, mirrors - check the stop arm and its red lights, the crossing gate if equipped, the amber and red warning-light system, all emergency exits and their buzzers, the fire extinguisher charge and mount, first-aid kit, body-fluid cleanup kit, and three reflector triangles. Operate each exit; a rear door that opens but does not sound the buzzer is a defect.
Control skills
Tail swing: when the front of the bus turns, the rear corners swing the opposite way. Off-tracking: the rear wheels cut inside the front wheels in a turn, so watch the rear tires in the convex mirrors. Backing is the highest-risk maneuver; back only when necessary, use a spotter, and if you have no spotter, get out and check behind the bus before moving.
Worked example
You must turn around in a crowded cul-de-sac. Reasoning: first look for a legal, safer alternative. If backing is unavoidable, stop, set the parking brake, place the transmission in neutral or park, walk to the rear and check for children and obstacles, then use a spotter. Back slowly, watching both convex mirrors and stopping whenever the rear path is unclear. Do not let a passenger guide you from inside the bus.
Traps
Common misses: testing lights but not the stop arm; opening the rear door without listening for the buzzer; assuming the rear wheels follow the front wheels; and backing before checking behind the bus.