Prepare for the ASE H6 Transit Bus Electrical/Electronic Systems certification with our specialized practice test. This assessment is designed to evaluate your proficiency in diagnosing and repairing electrical and electronic systems specific to transit buses, including battery and starting systems, charging systems, lighting, and related vehicle systems.
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#1. The headlights on a transit bus work OK on low beam, but they are very dim on high beam. Which of these could be the cause?
Corroded dimmer switch contacts is correct
#2. The operator notices battery odor while the transit bus is being driven. Which of these could be the cause?
The alternator is overcharging is correct
#3. Technician A says that a battery equalizer ensures that both batteries charge at the same rate. Technician B says that a battery equalizer converts 24 volts to 12 volts in a 24-volt/two-battery system. Who is right?
B only is corrct
#4. A transit bus’s windshield wipers work sporadically. Technician A says that an open (broken) wire could be the cause. Technician B says that a loose wiring connection could be the cause. Who is right?
B only is correct
#5. An engine will not crank when the start button is pressed, but cranks normally when the starter relay is activated. Which of these could be the cause?
An open between the start button and the relay is correct
#6. According to the ladder logic in the schematic shown, the MAG brake solenoid will release only when the:
service brake is applied is correct
#7. When arc welding on a transit bus, a technician should disconnect all of these EXCEPT the:
starter is correct
#8. All of these could cause high starter current draw EXCEPT:
a bad starter relay is correct
By engaging with these practice questions, you’ll enhance your understanding and readiness for the official ASE H6 examination.
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This is not an official test. Use it for entertainment purposes only.