ASE H3 Transit Bus Drive Train Practice Test

This is a practice test. The real ASE H3 drive train exam will test your knowledge of the diagnosis and repair of the automatic transmission, drive shaft, universal joint, and drive axle. Find a mechanic school near you.


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Not quite there yet, the study guide is linked below. 🙂

#1. A transit bus with a diesel engine and an electronic automatic transmission shifts late. Which of these could be the cause?

A bad throttle position (TP) sensor is correct

#2. An automatic transmission slips when cold, but shifts normally at operating temperature. Which of these could be the cause?

Low fluid level is correct

#3. Which of these could cause the rear axle seals to fail repeatedly?

A restricted axle housing breather is correct

#4. A transmission has no lock-up. During a pressure test, no pressure is found at the lock-up test port. This could be caused by:

a bad lock-up solenoid is correct

#5. A transit bus transmission is to be replaced. Technician A says that the transmission flex plate should be inspected each time the transmission is removed. Technician B says that the flywheel housing should be inspected each time the transmission is removed. Who is right?

Both A and B is correct

#6. An operator reports that the transit bus won’t go into gear. Technician A says that not engaging the high idle switch could be the cause. Technician B says that not stepping on the brake pedal could be the cause. Who is right?

B only is correct

#7. What operation is being performed in the setup shown in the illustration?

Checking ring gear runout is correct

#8. To most accurately check the fluid level in an automatic transmission, the technician should do all of these EXCEPT:

check while the fluid is cold is correct




This is a practice test based on the ASE transit bus study guide. Use it for entertainment purposes only.