ASE A6 Electrical and Electronic Quiz

1. A vehicle's factory alarm system activates on its own. Technician A says this could be a faulty courtesy light switch. Technician B says the alarm system's control module uses current sensitive switches. Who is correct?
Electrical symbol

2. The electrical symbol above is:

3. Two technicians are discussing a battery that discharges overnight, even after it's been fully charged the day before. Technician A says this could be a slow drain caused by a faulty alternator. Technician B says this is most likely caused by a parasitic drain. Who is correct?
Glove box lamp circuit.

4. The lamp in the glove box does not operate. The test light is illuminated at point C with the glove box open and the switch closed. The inoperative lamp is caused by:

5. An alternator output test is being performed on a vehicle's charging system. Technician A says engine idle must be increased during this test. Technician B says the vehicle's accessories must be turned on during this test. Who is correct?
6. 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?
7. 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?
8. 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:
Parking Brake Circuit

9. The parking brake warning light in the diagram is continuously illuminated. Which of these is MOST likely the cause?

10. 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?
11. A vehicle's battery is being tested for capacity. Technician A says during a battery capacity test the voltage should not drop below 9.6 volts at 70° F. Technician B says a battery's voltage reading should increase as temperature decreases. Who is correct?
12. Technician A says changing the field current changes the alternator's voltage output. Technician B says the control module adjusts voltage regulation according to battery temperature and voltage. Who is correct?
13. A technician is looking for the wire to an airbag sensor. The color of this airbag sensor's wire is MOST likely:
14. The headlights get brighter as a vehicle is accelerated. Technician A says this is caused by a high capacity battery. Technician B says this is caused by high charging system voltage. Who is correct?
15. A vehicle's engine will not crank. Technician A says to check the starter circuit first. Technician B says to check the condition of the battery first. Who is correct?
16. All the lights in a brake light circuit illuminate except one. The MOST likely cause is:
17. A vehicle has a starting problem. Technician A says to use an ammeter to test for starter current draw. Technician B says worn brushes will cause high resistance in the starter circuit. Who is correct?
18. If a technician reversed the leads of a digital voltmeter on a 12 volt circuit the readout would show:
19. 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?
20. A technician replaces a blown fuse in a dome light circuit and the element in the fuse melts immediately. Technician A says if a dome light keeps blowing fuses to check for a short to ground. Technician B says resistance in this circuit has increased current flow. Who is correct?
Please select an answer