Indiana CDL School Bus Test study materials
Indiana CDL School Bus Test study resources

Indiana CDL School Bus Test key terms

Indiana CDL School Bus Test · Get comfortable with the vocabulary.

Pre-Trip Inspection

A systematic walk-around and in-cab check of the bus performed before every trip to confirm lights, brakes, tires, mirrors, emergency exits, and warning equipment are present and working.

Related: Air Brake Test, Emergency Exit, Post-Trip Inspection
Air Brake Test

A three-part check of air pressure buildup, static leakage, and warning buzzer or light activation, run before driving to confirm the air brake system holds pressure and signals low-pressure failure.

Related: Pre-Trip Inspection, Brake Adjustment Check
Brake Adjustment Check

A measurement of pushrod travel on each air brake chamber, or a visual check of slack adjusters, to confirm brakes are within adjustment limits before the bus is driven.

Related: Air Brake Test
Post-Trip Inspection

The walk-through completed after the last run of the day, checking for sleeping or left-behind students, damage, and mechanical problems, then reporting findings and securing the bus.

Related: Pre-Trip Inspection, Sleeping Child Check
Sleeping Child Check

A mandatory sweep of every seat, including the rear rows and under-seat areas, at the end of each route to make sure no student remains on the bus.

Related: Post-Trip Inspection
Emergency Exit

Any designated door, roof hatch, or window intended for rapid evacuation, which must be unobstructed, properly latched, and checked for operation during the pre-trip inspection.

Related: Pre-Trip Inspection, Evacuation
Stop Arm

The extendable sign on the left side of the bus that signals traffic to stop while students are loading or unloading, and which must be tested for full extension and retraction.

Related: Loading Zone, Danger Zone
Danger Zone

The area immediately around the bus, roughly ten feet in every direction, where students are hardest to see and where most loading and unloading injuries occur.

Related: Stop Arm, Crossing Gate
Loading Zone

The marked area at a stop where the bus positions itself to pick up or drop off students, kept clear of traffic hazards and selected so students need not cross the roadway if avoidable.

Related: Stop Arm, Right-Hand Pickup Rule
Right-Hand Pickup Rule

The practice of stopping on the right side of the road so students board and exit onto the shoulder, avoiding the need to cross traffic except where routing makes crossing unavoidable.

Related: Loading Zone, Danger Zone
Student Count

The practice of counting students as they board and again as they leave, and reconciling the numbers, so no student is unaccounted for after a stop or at the end of a run.

Related: Sleeping Child Check, Head Count Reconciliation
Head Count Reconciliation

Comparing the number of students who boarded with the number who exited at a stop or at school, and investigating any mismatch before the bus moves on.

Related: Student Count
Hand Signal

A standardized arm and hand gesture used by the driver to direct students to wait, cross, or stop, giving clear instructions when voice commands cannot be heard.

Related: Crossing Gate, Danger Zone
Crossing Gate

The driver's physical position at the front of the bus, or the act of stepping into the doorway, used to hold students back until it is safe for them to cross.

Related: Hand Signal, Danger Zone
Bully Prevention

The driver's duty to watch for and intervene in repeated intimidation, physical aggression, or exclusion among students, documenting incidents and reporting them to school officials.

Related: Incident Report, Behavior Management Plan
Behavior Management Plan

A written set of expected bus behaviors and graduated consequences, communicated to students and families, that gives the driver consistent responses to misconduct.

Related: Bully Prevention, Incident Report
Incident Report

A written record of a student conduct problem, describing what happened, who was involved, and what action the driver took, submitted to the school for follow-up.

Related: Behavior Management Plan, Bully Prevention
Distracted Driving

Any activity that takes the driver's eyes, hands, or attention off the road, including phone use, eating, or managing students, and which is prohibited while the bus is in motion.

Related: Behavior Management Plan
Seating Chart

An assigned-seat plan that helps the driver learn student names, separate students who disrupt each other, and identify who was sitting where after an incident.

Related: Behavior Management Plan, Incident Report
Railroad-Highway Grade Crossing

Any place where a public road crosses railroad tracks at the same level, requiring the bus driver to stop, look, and listen under specific rules before proceeding.

Related: Stop-Look-Listen, Crossing Clearance
Stop-Look-Listen

The required procedure at a grade crossing: stop the bus, open the door or window to listen, look both directions, and proceed only when certain no train is approaching.

Related: Railroad-Highway Grade Crossing, Crossing Clearance
Crossing Clearance

The confirmation that the bus can completely cross the tracks without stopping, so the vehicle never blocks the railroad right-of-way.

Related: Stop-Look-Listen, Railroad-Highway Grade Crossing
Passive Crossing

A grade crossing protected only by signs and pavement markings, without gates or flashing lights, which demands the driver's full stop and careful judgment.

Related: Active Crossing
Active Crossing

A grade crossing equipped with warning devices such as flashing lights, bells, or gates, which the driver must obey even when no train appears to be coming.

Related: Passive Crossing
Evacuation

The orderly removal of students from the bus through designated exits to a safe assembly point, practiced in drills and carried out during emergencies.

Related: Emergency Exit, Evacuation Drill
Evacuation Drill

A scheduled practice in which students rehearse leaving the bus through front, rear, and side exits, so they can act quickly and safely in a real emergency.

Related: Evacuation, Emergency Exit
Assembly Point

A pre-selected safe location away from the bus, traffic, and fire hazards where students gather after evacuation and are counted.

Related: Evacuation, Student Count
Fire Suppression

The use of the onboard extinguisher, aimed at the base of a small fire, only when the driver can do so safely before evacuating students.

Related: Evacuation
Emergency Notification

The radio or phone call to dispatch and emergency services reporting the location, nature of the emergency, injuries, and number of students aboard.

Related: Evacuation, Incident Report
Following Distance

The gap kept between the bus and the vehicle ahead, measured in seconds, increased for bad weather, heavy loads, or higher speeds to allow room to stop.

Related: Stale Green Light, School Zone Speed Limit
Stale Green Light

A green signal that has been green for some time and may change to yellow before the bus reaches the intersection, so the driver should prepare to stop.

Related: Following Distance
School Zone Speed Limit

A reduced speed limit posted near a school and in effect during specified hours or when children are present, requiring the driver to slow and watch for students.

Related: Following Distance
Tail Swing

The outward sweep of the rear of the bus when the front wheels turn, which can strike pedestrians, signs, or parked vehicles if the driver does not check mirrors.

Related: Danger Zone
Off-Tracking

The tendency of the rear wheels of a long bus to follow a tighter path than the front wheels in a turn, requiring the driver to swing wide and watch the rear.

Related: Tail Swing
Blind Spot

An area around the bus that cannot be seen in the mirrors, especially directly behind and alongside the rear, where the driver must account for unseen vehicles or students.

Related: Danger Zone, Tail Swing
Skid Recovery

The technique of releasing hard braking, steering in the direction the bus should go, and avoiding sudden inputs to regain traction on slippery pavement.

Related: Following Distance
Hazard Light Use

Activating the bus's four-way flashers to warn traffic during loading, unloading, or a roadside stop, in addition to the required red warning lamps.

Related: Stop Arm, Loading Zone