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 these is correct?

  • A. This is a normal condition.
  • 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. Answer B is correct. 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. Answer B is correct. Worn brushes result in excessive resistance.

Answer D is wrong. Answer B is correct. 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 this could be caused by a short circuit. 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 will result in high current flow. This excessive current will melt the fuse element resulting in an open circuit.

Answer B is wrong. Installing a fuse with a higher amperage rating may damage the circuit. This is because a higher rated fuse allows more current to flow through the circuit than it's rated for. Small wires burn and open and components, especially electronic components will be damaged.

Answer C is wrong. Technician A is correct.

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. A faulty motor may turn slowly, slowing down window operation. Many window motors and circuits contain self resetting circuit breakers.

Answer B is wrong. A kink in the window gasket or run will result in mechanical resistance and cause the window to drag.

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

Answer D is correct. An open in the window switch would prevent 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 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. Both technicians are correct. Use a scan tool to diagnose an engine fan control circuit.

Answer B is wrong. Both technicians are correct. Use a scan tool to diagnose a fuel level sensors circuit. This can help a technician to diagnose a stuck high or low fuel gauge by filling the tank while monitoring the sensors output.

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

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