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ASE S1 Body Systems & Special Equipment (School Bus) Practice Questions - ASE S1 - Body Systems & Special Equipment (School Bus) Certification Exam
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Question
1
of 25
QUESTION 1 / 25
Under FMVSS 217, what is the minimum number of emergency exits a large school bus must have in addition to the rear door, based on seating capacity rules?
Choose one answer below.
A
The total exit area and number scale with passenger seating capacity per a published schedule
✓
B
A single rear exit is sufficient for any capacity bus
✓
C
Only side emergency doors are required, never roof hatches
✓
D
Emergency exits are optional if the bus has a stop arm
✓
QUESTION 2 / 25
A school bus emergency exit door warning buzzer sounds continuously even when all exits are fully closed and latched. Technician A says a stuck-open exit ajar switch can cause this. Technician B says a shorted-to-ground signal wire can cause this. Who is correct?
Choose one answer below.
A
Only Technician A
✓
B
Both A and B
✓
C
Only Technician B
✓
D
Neither A nor B
✓
QUESTION 3 / 25
FMVSS 131 governs the school bus stop signal arm. What does the standard primarily specify?
Choose one answer below.
A
The interior headliner flammability rating
✓
B
The maximum engine horsepower of a school bus
✓
C
The size, retroreflective/lamp markings, and operation of the stop arm
✓
D
The seat-back padding thickness
✓
QUESTION 4 / 25
The 8-way warning lamp system on a school bus typically sequences as the driver loads/unloads. What is the correct activation order?
Choose one answer below.
A
Only red lamps are used; amber lamps are decorative
✓
B
Red lamps first, then amber lamps after the door opens
✓
C
White strobe first, then amber, then red simultaneously
✓
D
Amber (yellow) warning lamps first, then red flashing lamps with stop arm and crossing gate
✓
QUESTION 5 / 25
When the service door is opened during a loading stop, which devices should deploy along with the alternating red lamps?
Choose one answer below.
A
The stop signal arm and the front crossing control gate
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B
Only the rear hazard lamps
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C
The wheelchair lift automatically
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D
The engine fast-idle only
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QUESTION 6 / 25
A school bus is equipped with a child reminder (child-check) alarm. What action is the driver normally required to take to silence it?
Choose one answer below.
A
Press the brake pedal twice from the driver seat
✓
B
Walk to the rear of the bus and press a switch at the back, forcing a child-check sweep
✓
C
Turn the ignition off only
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D
Open the service door
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QUESTION 7 / 25
FMVSS 111 addresses school bus mirrors. Which mirror requirement is part of this standard?
Choose one answer below.
A
A backup camera with a 12-inch screen
✓
B
A heated rear window defroster grid
✓
C
Cross-view (crossover) mirrors that let the driver see the danger zone in front of and beside the bus
✓
D
An interior dome light dimmer
✓
QUESTION 8 / 25
A driver complains the convex (cross-view) mirrors give a distorted, shrunken image of objects. What is the correct technician response?
Choose one answer below.
A
Disconnect the mirror heater
✓
B
Replace the mirrors with flat glass to fix the distortion
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C
Bend the mirror bracket to flatten the glass
✓
D
This is normal; convex mirrors widen the field of view at the cost of apparent object size
✓
QUESTION 9 / 25
The strobe lamp on the roof of a school bus does not illuminate, but all 8-way lamps work. Where should the technician begin diagnosis?
Choose one answer below.
A
At the dedicated strobe switch, its fuse/circuit, and the strobe power supply
✓
B
At the stop arm air solenoid
✓
C
At the crossing gate motor
✓
D
At the heater booster pump
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QUESTION 10 / 25
A roof emergency exit hatch will not stay latched and the buzzer sounds. Which inspection step is most appropriate first?
Choose one answer below.
A
Replace the entire roof skin
✓
B
Inspect the hatch latch mechanism, gasket, and the ajar switch adjustment
✓
C
Add weight to the hatch lid
✓
D
Disable the buzzer to stop the noise
✓
QUESTION 11 / 25
Every school bus must carry an emergency equipment kit. Which set of items is typically required?
Choose one answer below.
A
Extra coolant and a funnel only
✓
B
Spare alternator and starter motor
✓
C
First aid kit, body fluid cleanup kit, fire extinguisher, and warning triangles/reflectors
✓
D
A toolbox with metric sockets
✓
QUESTION 12 / 25
The school bus fire extinguisher gauge reads in the red (discharged) zone. What is the correct action?
Choose one answer below.
A
Move it to the rear of the bus
✓
B
Shake the extinguisher to repressurize it
✓
C
Ignore it if the pin is still in place
✓
D
Remove from service for that item and recharge or replace the extinguisher before the bus runs a route
✓
QUESTION 13 / 25
The stop signal arm extends but the red lamps on the arm do not flash. The body red roof lamps work. Most likely cause?
Choose one answer below.
A
Open circuit or burned bulbs/LEDs in the stop-arm lamp feed or its flasher
✓
B
The stop-arm air or electric actuator is seized
✓
C
The crossing gate motor is bad
✓
D
The service door switch is unplugged
✓
QUESTION 14 / 25
What is the purpose of the front crossing control gate on a school bus?
Choose one answer below.
A
To block oncoming traffic from passing
✓
B
To push students far enough forward that they cross in the driver's view, out of the front blind spot
✓
C
To hold the hood closed
✓
D
To support the front bumper
✓
QUESTION 15 / 25
During pre-trip, the amber warning lamps will not activate but the red lamps and stop arm work when the door opens. Best diagnostic focus?
Choose one answer below.
A
The stop-arm actuator
✓
B
The service door ajar switch
✓
C
The amber-lamp pre-stop switch and amber lamp circuit/bulbs
✓
D
The child-check rear switch
✓
QUESTION 16 / 25
A side emergency exit window is hard to push out and requires excessive force. Why is this a safety concern under FMVSS 217?
Choose one answer below.
A
The window force only matters when the engine is running
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B
High force makes the window more weatherproof, which is desirable
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C
Emergency windows are not required to open at all
✓
D
FMVSS 217 limits the force and specifies the motions required to open emergency exits for rapid evacuation
✓
QUESTION 17 / 25
Technician A says the school bus must have an audible alarm if the emergency exit door is not closed and the ignition is on. Technician B says emergency exits must also have legible operating instructions posted near each exit. Who is correct?
Choose one answer below.
A
Both A and B
✓
B
Only Technician A
✓
C
Only Technician B
✓
D
Neither A nor B
✓
QUESTION 18 / 25
The crossing control gate extends slowly and incompletely. Which cause is most likely on an air-operated gate?
Choose one answer below.
A
A burned amber bulb
✓
B
Low system air pressure, a restricted air line, or a weak gate actuator
✓
C
A cracked windshield
✓
D
A dirty interior air filter
✓
QUESTION 19 / 25
Why must school bus warning lamp lenses be inspected for fading and cracks?
Choose one answer below.
A
Lens condition only affects fuel economy
✓
B
Faded lenses improve aerodynamics
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C
Faded or cracked lenses reduce light output and visibility, weakening the legally required warning signal
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D
Cracked lenses are required for ventilation
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QUESTION 20 / 25
A school bus rear emergency door opens but the engine continues to run with no warning. What should be verified?
Choose one answer below.
A
The tire pressure
✓
B
The front amber lamp flasher
✓
C
The heater core coolant level
✓
D
The rear emergency door ajar switch and its warning buzzer/lamp wiring
✓
QUESTION 21 / 25
FMVSS 222 specifies school bus passenger crash protection primarily through compartmentalization. What does compartmentalization rely on?
Choose one answer below.
A
Closely spaced, high, energy-absorbing padded seat backs to protect occupants without seat belts on large buses
✓
B
Five-point harnesses on every seat in all large buses
✓
C
Airbags in every seating row
✓
D
Removing seats to add open standing space
✓
QUESTION 22 / 25
A school bus seat frame is loose at the floor track. What is the correct repair priority?
Choose one answer below.
A
Add a cushion and return the bus to service
✓
B
Properly re-secure the seat anchorage to the rated torque so compartmentalization integrity is restored
✓
C
Leave it; passenger seats do not need to be tight
✓
D
Weld the seat permanently in any nearby position
✓
QUESTION 23 / 25
Interior trim and seat upholstery on a school bus must meet which flammability standard?
Choose one answer below.
A
FMVSS 131 stop arm
✓
B
FMVSS 217 emergency exits
✓
C
FMVSS 302 flammability of interior materials
✓
D
FMVSS 111 mirrors
✓
QUESTION 24 / 25
A technician finds rust perforation in the school bus floor pan under a seat track. Why is this critical?
Choose one answer below.
A
Rust there strengthens the seat track
✓
B
Floor rust only affects appearance
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C
It improves drainage so it can be left alone
✓
D
Floor corrosion can compromise seat anchorage strength and structural integrity needed for crash protection
✓
QUESTION 25 / 25
The school bus service door operates very slowly and binds. On an air-operated door, what should be checked first?
Choose one answer below.
A
Air pressure to the door cylinder, the door control valve, and the door linkage/track for binding
✓
B
The heater blend door
✓
C
The strobe lamp
✓
D
The first aid kit contents
✓
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