ASE A6 Electrical Electronics Practice Test

Automotive electrical symbol

11. The electrical symbol above is:

  • A. A resistor.
  • B. A splice.
  • C. An inductor.
  • D. A motor.

11.

Answer A is wrong. This is the symbol for a motor. Sometimes it has an M in the circle.

Answer B is wrong. Diagrams use symbols to represent components in a circuit. This is the symbol for a motor.

Answer C is wrong. This is the symbol for a motor.

Answer D is correct. View the symbol chart in the read more section for more symbols used in automotive schematics.

12. Two technicians are discussing a burned fuse element in a fan circuit. Technician A says the burned fuse was caused by high resistance in the fan circuit. Technician B says the burned fuse was the result of an open in this circuit. Who is correct?

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

12.

Answer A is wrong. Unwanted resistance in a circuit results in lower than normal current flow.

Answer B is wrong. A short in the circuit results in too much current and a blown circuit protection device (fuse). A blown fuse causes an open in the circuit. This is intentional. A fuse is a designed to protect electrical circuits.

Answer C is wrong. Neither technician is correct.

Answer D is correct. Neither technician is correct.

13. Technician A says a faulty cruise control switch can result in an inoperative cruise control system. Technician B says the cruise control system may not disengage if there’s a problem with the brake switch. Who is correct?

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

13.

Answer A is wrong. Both Technicians are correct.

Answer B is wrong. Both Technicians are correct.

Answer C is correct. The cruise control switch contains the on/off switch to activate the cruise control system. The brake switch is used to deactivate the system. A faulty brake switch may not disengage the system forcing the driver to use the other switch instead.

Answer D is wrong. Both Technicians are correct.

14. An electric seat will not move backward or forward. A noise is heard coming from the seat when the switch is pressed. The MOST likely cause of this problem is:

  • A. A short to ground between the power source and the seat.
  • B. A napkin wedged into the seat rail.
  • C. An intermittent open in the connection between the power source and the seat motor.
  • D. A loose plug from the harness to the seat motor.

14.

Answer A is wrong. A short to ground will most likely result in a blown fuse and no operation.

Answer B is correct. If something like a newspaper is wedged into the seats rail, the excessive resistance will result in little, or no seat movement. It may also damage the motor. Visually inspect the seat rail for debris.

Answer C is wrong. An intermittent open will result in on off operation or no operation at all. Sometimes the seat would move, other times it wouldn't.

Answer D is wrong. A loose plug will result in intermittent operation.

15. Two technicians are discussing an analog transmission range sensor on a late model vehicle. Technician A says that since these sensors use resistance to indicate gear selection, they can be tested with an ohmmeter. Technician B says to start the car and make sure the circuit is powered before using the meter. Who is correct?

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

15.

Answer A is correct. Ohmmeters test sensors and circuits for resistance.

Answer B is wrong. Never power a circuit when using an ohmmeter, this may damage the tester.

Answer C is wrong. Technician A is correct.

Answer D is wrong. Technician A is correct.