ASE A6 Electrical Electronics Practice Test

36. All the lights in a brake light circuit illuminate except one. The MOST likely cause is:

  • A. An open wire.
  • B. An open taillight switch.
  • C. A blown fuse.
  • D. A burned bulb.

36.

Answer A is wrong. It is most likely the individual bulb.

Answer B is wrong. This would have affected all the lights.

Answer C is wrong. This would have affected all the lights.

Answer D is correct. In a parallel circuit one bulb can burn out while the others are unaffected.

37. A vehicle has a starting problem. Technician A says to use an ammeter to test starter current draw. Technician B says that worn brushes result in high resistance in the starter circuit. Who is correct?

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

37.

Answer A is wrong. Both technicians are correct.

Answer B is wrong. Both technicians are correct.

Answer C is correct. Low current draw in a starter circuit is often caused by worn brushes. Worn or faulty bushings cause binding, turning resistance and high current draw. Use an ammeter to check amperage and current draw.

Answer D is wrong. Both technicians are correct.

38. If a technician reversed the leads of a digital voltmeter on a 12 volt circuit the readout would show:

  • A. 0.00 volts
  • B. -0.00 volts
  • C. 12.00 volts
  • D. -12.00 volts

38.

Answer A is wrong. Because the leads are crossed the output is -12.00 volts.

Answer B is wrong. The answer is -12.00 volts.

Answer C is wrong. The answer is -12.00 volts.

Answer D is correct. The answer is -12.00 volts. If the leads are reversed using a digital meter, the polarity is changed resulting in a negative voltage reading.

39. The hazard and turn signal lights are inoperative. Technician A says that they share the same circuit. Technician B says the vehicle may have a faulty flasher. Who is correct?

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

39.

Answer A is wrong. Both technicians are correct.

Answer B is wrong. Both technicians are correct.

Answer C is correct. Both technicians are correct. This indicates the use of a combination flasher.

Answer D is wrong. Both technicians are correct.

Voltage drop test

40. All of the following are true about the circuit in the diagram above EXCEPT.

  • A. It is a ground switched circuit.
  • B. It contains two relays.
  • C. The solid dots indicate a junction.
  • D. It is a positive pulse relay circuit.

40.

Answer A is wrong. The circuit is ground switched.

Answer B is wrong. There are two relays.

Answer C is wrong. Solid dots indicate connected wires.

Answer D is correct. This is a ground switched or negative controlled "pulsed" relay circuit.