ASE A2 Automatic Transmission Practice Test

Gear ratio chart

6. Refer to the chart above. Which gear ratio best represents overdrive?

  • A. 4.027:1
  • B. 0.852:1
  • C. 3.064:1
  • D. None of these.

6.

Answer A is wrong. This ratio (4.027:1) represents gear reduction.

Answer B is correct. This ratio (0.852:1) represents overdrive.

Answer C is wrong. This ratio (3.064:1) represents gear reduction.

Answer D is wrong. Answer B (0.852:1) represents overdrive.

7. A transaxle's final drive assembly has been replaced. Use which of the following to measure ring gear backlash?

  • A. An inch-pound torque wrench.
  • B. An outside micrometer.
  • C. A dial indicator.
  • D. A straightedge and feeler gauge.

7.

Answer A is wrong. Use an inch-pound torque wrench to check for proper pinion preload.

Answer B is wrong. Use an outside micrometer to measure journals, shafts, shims, and thrust bearing thickness.

Answer C is correct. Check ring gear backlash with a dial indicator. Always compare readings with manufacturer specifications.

Answer D is wrong. Use a straightedge and a feeler gauge to measure for warpage on a flat surface like a bellhousing.

8. Technician A says an automatic transmission multiple friction disc clutch can drive a member of the planetary gearset. Technician B says a multiple friction disc clutch can ground a member to the transmission case. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

8.

Answer A is wrong. When the piston applies pressure to the disc assembly, the clutch applies and either drives or holds a member.

Answer B is wrong. Automatic transmissions use multiple friction disc clutches that can lock a member to the transmission housing.

Answer C is correct. Both technicians are correct. Multiple friction disc clutches hold and drive members of the planetary gearset.

Answer D is wrong. Brake bands and drums connect and hold a member of the gearset to the transmission case.

9. An automatic transmission will not shift out of PARK. Technician A says a faulty shift interlock solenoid will result in this condition. Technician B says this could be caused by a faulty brake switch. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

9.

Answer A is wrong. The shift interlock solenoid is a member of the shifter assembly in the center console or the steering column. It locks the shifter in PARK until the brake pedal has been depressed.

Answer B is wrong. If the shifter does not shift out of PARK, check brake light operation to rule out the stoplight fuse and the brake switch as the cause.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Both technicians are correct.

10. Technician A says the test ports to retrieve hydraulic pressure readings for the line, clutch, and servo circuits are located on the transmission case. Technician B says to perform air pressure tests before and after transmission disassembly. Who is correct?

  • A. Technician A
  • B. Technician B
  • C. Both A and B
  • D. Neither A or B

10.

Answer A is wrong. Perform a hydraulic pressure test to diagnose hard shifting and poor shift timing. The transmission's service manual provides these test port locations. A pressure difference beyond specifications, usually 8-15 psi indicates a leak in the circuit. Check the manufacturer's specifications before proceeding.

Answer B is wrong. After removing the valve body, test ports are available for air testing individual circuits. Test plates label and identify the different circuits. Retrieve the transmission manufacturer's test specifications, identify the desired circuit, and apply low air pressure.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Before diagnosing and troubleshooting a transmission, the vehicle's engine must be operating correctly.