21.   A vehicles alarm keeps setting off on its own. Technician A says this may be the courtesy light switch. Technician B says this type of alarm control module uses current sensitive switches. Who is correct?

A. Technician A

B. Technician B

C. Both Technician A and B

D. Neither Technician A or B

26.   Which of these best represents the image above.

A. The are both sine waves.

B. Number 1 is an analog signal and number 2 is digital.

C. Number 1 is an digital signal and number 2 is analog.

D. The are both digital signals.

22.   The electrical symbol above is :

A. a variable resister

B. a capacitor

C. an inductor

D. none of these.

27.   Two technicians are checking a circuit powered by placing the key in the run position for continuity. Technician A says the test light should illuminate on both sides of the 15 amp fuse contained in this circuit. Technician B says you may use a 20 amp. fuse to protect this circuit. Who is correct?

A. Technician A

B. Technician B

C. Both Technician A and B

D. Neither Technician A or B

23.   The dome light in a vehicle flickers on and off with the switch in the on position. The most likely cause of this problem is:

A. a short to ground between the power source and the dome light.

B. an open in the wire leading from the power source to the dome light.

C. an intermittent open in the connection between the power source and the dome light.

D. a burned dome bulb.

28.   The drivers power window in a vehicle is moving very slowly. All of these could cause this problem except.

A. a faulty motor.

B. high resistance in the window motor circuit.

C. binding linkage.

D. an open in the window switch.

24.   The lamp in the glove box is inoperative. The test light is illuminated at point C with the glove bow open and the switch closed. The most likely cause of this problem is:

A. a burned bulb filament.

B. an open between the switch and the ground.

C. a short to ground at point B of the circuit.

D. a short to ground at point D of the 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 .

25.   A full-fielded 70 amp alternator only produces 45 amps. The most likely cause of this is a:

A. Worn Brush

B. Open Regulator

C. Worn Commutator

D. Burned Diode

30.   A pedal mounted brake switch is being discussed. While probing the brake switch with the a test light and the pedal depressed there is power going in but no power coming out. Technician A says with the brake pedal depressed there should be power present at both ends of the brake switch. Technician B says this condition indicates that there is an open in this brake switch. Who is correct?

A. Technician A

B. Technician B

C. Both Technician A and B

D. Neither Technician A or B