ASE A6 Electrical Electronics Practice Test

26. A technician is performing a starter current draw test on a four-cylinder engine. The engine cranks slowly and has a current draw of 340 amps. Which of the following is correct?

  • A. The current draw is within specifications.
  • B. The starter has worn bushings.
  • C. The starter has worn brushes.
  • D. There is excessive resistance in the circuit.

26.

Answer A is wrong. There is excessive current draw in the starter circuit.

Answer B is correct. A typical four-cylinder engine requires 150-170 amps. A current draw of 340 amps is too high. Worn bushings result in high current draw.

Answer C is wrong. Worn brushes result in excessive resistance.

Answer D is wrong. There is excessive current draw in the circuit.

27. A power antenna is inoperative. The technician replaces the recommended 15 amp fuse, and the element melts immediately. Technician A says a short circuit could cause this problem. Technician B says to use a 20 amp fuse to protect this circuit. Who is correct?

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

27.

Answer A is correct. A short circuit results in an excessive current that melts the fuse element resulting in an open circuit.

Answer B is wrong. Installing a fuse with a higher amperage rating may damage the circuit. A higher rated fuse allows more current to flow through the circuit than it can handle.

Answer C is wrong. Small wires burn and open, and electronic components and circuit boards overheat from the excessive current.

Answer D is wrong. Technician A is correct.

28. The driver's power window moves very slowly, and the window switch must be pressed several times to open or close the window. All of these could cause this problem EXCEPT:

  • A. A faulty circuit breaker.
  • B. A binding window gasket.
  • C. A binding window regulator.
  • D. An open in the window switch.

28.

Answer A is wrong. Many window motors and circuits contain self-resetting circuit breakers.

Answer B is wrong. A kink in the window gasket or run results in mechanical resistance and causes the window to drag.

Answer C is wrong. A loose or faulty window regulator causes window misalignment.

Answer D is correct. An open in the window switch prevents window motor operation. All the other choices would slow window operation.

Parking Brake Circuit

29. The parking brake warning light in the diagram is continuously illuminated. Which of these is MOST likely the cause?

  • A. A short to ground at point C of the diagram.
  • B. An open at point D of the diagram.
  • C. High Resistance at point A of the diagram.
  • D. A short to ground at point B of the diagram.

29.

Answer A is correct. A short to ground after the bulb in a ground controlled circuit will illuminate the bulb.

Answer B is wrong. An open in the ground will prevent the light from illuminating.

Answer C is wrong. High resistance in the circuit would likely make the light dim or possibly not functional at all.

Answer D is wrong. A short to ground before the bulb would likely leave the bulb not illuminated at all. A short to ground in a circuit will likely blow the fuse.

30. Technician A says to use the scan tool's datastream feature to evaluate input from the (ECT) engine coolant temperature sensor. Technician B says to use a scan tool to analyze input from a fuel gauge that reads full at all times. Who is correct?

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

30.

Answer A is wrong. Use a scan tool to diagnose the ECT sensor and the engine fan control circuit.

Answer B is wrong. Use a scan tool to diagnose a fuel level sensors circuit.

Answer C is correct. Both technician A and B are correct.

Answer D is wrong. Both technician A and B are correct.