Question 1

Body control module (BCM)

Accepted Answer

A computerized control unit that manages various electrical functions in a school bus body.

Question 2

Multiplexing

Accepted Answer

A wiring system that allows multiple signals to be transmitted over a single wire.

Question 3

SAE J1939

Accepted Answer

A standard protocol used for communication between electronic control units (ECUs) in heavy-duty vehicles.

Question 4

HVAC system

Accepted Answer

The heating, ventilation, and air conditioning system in a school bus.

Question 5

ABS (Anti-lock Braking System)

Accepted Answer

A safety feature that prevents the wheels from locking up during braking, improving vehicle control.

Question 6

ADA (Americans with Disabilities Act)

Accepted Answer

Legislation that ensures accessibility for individuals with disabilities, including requirements for school buses.

Question 7

Roof hatch

Accepted Answer

A large opening in the roof of a school bus for emergency exit purposes.

Question 8

Destination sign

Accepted Answer

An electronic or manual display that indicates the route or destination of a school bus.

Question 9

Stop arm

Accepted Answer

A mechanical arm extending from the side of a school bus to signal other vehicles to stop when students are boarding or alighting.

Question 10

Cross-view mirror

Accepted Answer

A mirror mounted on the front of a school bus to provide the driver with a wider field of vision.

Question 11

Wheelchair lift

Accepted Answer

A motorized platform that raises and lowers to assist individuals using wheelchairs in boarding and exiting a school bus.

Question 12

A-pillar

Accepted Answer

The vertical support structure on either side of the windshield in a school bus.

Question 13

Air suspension

Accepted Answer

A suspension system that uses compressed air to support the weight of the school bus, providing a smoother ride.

Question 14

Flashing lights

Accepted Answer

Lights on the front and rear of a school bus that indicate its intention to stop and load or unload passengers.

Question 15

Multiplexed switches

Accepted Answer

Switches that communicate digitally with the body control module, allowing for centralized control of various functions.

Question 16

Fire suppression system

Accepted Answer

A system that automatically detects and extinguishes fires in the engine compartment or other areas of a school bus.

Question 17

Wheelchair securement system

Accepted Answer

Devices and restraints used to secure wheelchairs safely in a school bus.

Question 18

Child Check-Mate System

Accepted Answer

An alarm system designed to help prevent children from being left unattended on a school bus.

Question 19

Exterior mirrors

Accepted Answer

Mirrors mounted on the sides of a school bus to provide the driver with a view of surrounding traffic.

Question 20

Door interlock system

Accepted Answer

A safety feature that prevents the school bus from moving while the entry door is open.

Question 21

Retarder

Accepted Answer

A device used to slow down a school bus by providing additional resistance to the drivetrain.

Question 22

Rear emergency exit

Accepted Answer

A large window or door at the rear of a school bus that serves as an emergency exit.

Question 23

Air conditioning compressor

Accepted Answer

A device that pressurizes and circulates refrigerant in the HVAC system to cool the school bus interior.

Question 24

Rearview camera

Accepted Answer

A camera mounted at the rear of a school bus that displays the area behind the bus on a monitor for the driver.

Question 25

Strobe lights

Accepted Answer

High-intensity flashing lights used to increase the visibility of a school bus, especially during inclement weather or low light conditions.

Question 26

Accessible seating

Accepted Answer

Designated seating areas in a school bus reserved for passengers with disabilities.

Question 27

Battery cutoff switch

Accepted Answer

A switch that disconnects the battery from the electrical system to prevent battery drain when the school bus is not in use.

Question 28

Electronic stability control (ESC)

Accepted Answer

A safety feature that helps maintain vehicle stability during sudden maneuvers or loss of control.

Question 29

Emergency exit windows

Accepted Answer

Windows designed to be easily opened from the inside to serve as emergency exits in a school bus.

Question 30

Stop request system

Accepted Answer

A system that allows passengers to indicate their intention to exit the school bus at the next stop.

Question 31

Low-floor bus

Accepted Answer

A type of school bus with a reduced floor height, providing easier accessibility for passengers with mobility limitations.

Question 32

DPF (Diesel Particulate Filter)

Accepted Answer

A device that captures and removes particulate matter from the exhaust gases of a diesel engine.

Question 33

CCTV (Closed-Circuit Television)

Accepted Answer

A system of video cameras and monitors used for surveillance and security purposes in a school bus.

Question 34

Electronic door control

Accepted Answer

A system that electronically controls the opening and closing of the entry door in a school bus.

Question 35

Interlock system

Accepted Answer

A safety feature that prevents the school bus from starting or moving unless certain conditions, such as the seat belt being fastened, are met.

Question 36

Roof-mounted air conditioning unit

Accepted Answer

An air conditioning system installed on the roof of a school bus, providing cooling for the interior.

Question 37

Wheelchair ramp

Accepted Answer

A folding or telescoping ramp that allows individuals using wheelchairs to board and exit a school bus.

Question 38

Tire pressure monitoring system (TPMS)

Accepted Answer

A system that continuously monitors the air pressure in the school bus tires and alerts the driver of any significant deviations.

Question 39

Emergency lighting

Accepted Answer

Illumination devices, such as strobe lights or LED beacons, used to provide visibility and signal emergencies in a school bus.

Question 40

Electronic throttle control (ETC)

Accepted Answer

A system that electronically controls the throttle opening in response to driver inputs, improving engine performance and fuel efficiency.

Question 41

Electrically operated door

Accepted Answer

An entry door in a school bus that is opened and closed using an electrical motor or actuator.

Question 42

Collision avoidance system

Accepted Answer

A system that uses sensors and alerts to warn the driver of potential collisions with other vehicles or obstacles.

Question 43

Side-view camera

Accepted Answer

A camera mounted on the side of a school bus that provides a view of the blind spots and assists the driver in lane changes or turns.

Question 44

Defroster system

Accepted Answer

A system that removes condensation and ice buildup from the windshield and other windows in a school bus.

Question 45

Electronic stability program (ESP)

Accepted Answer

An advanced safety system that helps maintain stability and control during driving maneuvers, such as skidding or swerving.

Question 46

Horn

Accepted Answer

An audible device used to alert other drivers, pedestrians, or students of the presence of a school bus.

Question 47

Remote engine shutdown

Accepted Answer

A feature that allows the engine of a school bus to be shut down remotely in case of theft or unauthorized use.

Question 48

Electronic instrument cluster

Accepted Answer

A digital display panel that provides the driver with information about vehicle speed, fuel level, engine temperature, and other parameters.

Question 49

Wheelchair securement station

Accepted Answer

A designated area in a school bus equipped with anchorages and restraints to secure wheelchairs during transit.

Question 50

GPS (Global Positioning System)

Accepted Answer

A satellite-based navigation system that provides real-time positioning information for tracking the location of a school bus.

Question 51

Radiator fan

Accepted Answer

A mechanical fan that draws air through the radiator to cool the engine coolant in a school bus.

Question 52

Fire extinguisher

Accepted Answer

A portable device used to suppress or extinguish small fires in the event of an emergency in a school bus.

Question 53

Lane departure warning system

Accepted Answer

A safety feature that alerts the driver if the school bus unintentionally drifts out of its lane without signaling.

Question 54

Heater core

Accepted Answer

A component in the HVAC system that uses engine coolant to provide heat for the interior of a school bus.

Question 55

EGR (Exhaust Gas Recirculation)

Accepted Answer

A system that reduces nitrogen oxide (NOx) emissions by recirculating a portion of the exhaust gases back into the engine.

Question 56

Retractable step

Accepted Answer

A folding or retractable step near the entry door of a school bus that provides a lower step height for easier boarding.

ASE School Bus Certification Tests S1 - Body Systems & Special Equipment Flashcards