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.

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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.

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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.

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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.

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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.

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