ASE A6 - Electrical/Electronic Systems
ACTUAL QUESTIONS AND CORRECT
ANSWERS
An air bag system is being serviced, Technician A says to disconnect the yellow SRS
connectors at the front of the vehicle. Technician B says to disconnect and isolate the
negative battery cable.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is B. Always disconnect
the negative battery cable and wrap with tape so contact cannot be made. Follow the specific
vehicle's disarming instructions, as some SRS system can retain backup power for an
additional period of time.
Which of these should be used when soldering electrical wiring connections?
A. Rosin core flux
B. Acid core flux
C. Sulfur core flux
D. None of the above - CORRECT ANSWERS✅✅The correct answer is A. For best results
and less corrosion at the solder point, a rosin core flux should be used.
When testing computer-controlled systems, a digital multimeter should be used with an input
impedance of at least:
A. 10k ohms
B. 100k ohms
C. 1 megohm
D. 10 megohms - CORRECT ANSWERS✅✅The correct answer is D. For maximum
protection to the computer-controlled system, or any electronic circuit, it is best to use at least
a 10-megohm impedance digital multimeter.
,When troubleshooting a slow drain on the battery, which of these diagnostic tools should be
used?
A. Ohmmeter
B. Ammeter
C. Voltmeter
D. Test light - CORRECT ANSWERS✅✅The correct answer is B. Always us an ammeter
or a low amperage amp clamp with your DMM to troubleshoot a slow drain in an electrical
circuit.
The condition of a lead-acid battery is being checked. Technician A says to use a
galvanometer. Technician B says to use a capacitive battery tester. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is B. A galvanometer is
an analog type voltmeter. OEMs almost universally recommend the use of a non-intrusive
conductive-capacitive type battery tester.
While testing a starting circuit on a 5.7L V8 engine, the technician finds that the engine
cranks slowly. The starter current draw is 90 amps, and the battery voltage while cranking is
11 volts. What should the technician do next?
A. Check voltage drop of the starter motor circuit
B. Test the battery capacity
C. Replace starter motor, as a short is indicated
D. Determine condition of the engine - CORRECT ANSWERS✅✅If an engine cranks
slowly and the starter current draw is only 90 amps and the voltage is as high as 11 volts, the
technician should next check for excessive voltage drop in the start motor circuit.
Technician A says that a noisy alternator could be caused by a bad diode. Technician B says
that a noisy alternator could be caused by a worn bearing. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
, D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is C, both technicians
are right. Worn alternator bearings and/or a bad alternator diode will cause the alternator to
be noisy.
A vehicle's turn signals flash too slowly. Technician A claims that the condition could be
caused by a faulty flasher. Technician B says that a bulb may be the wrong type. Who is
right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is C, both technicians
are right. Both an improperly rated flasher and an incorrect wattage bulb can cause the turn
signals to flash at incorrect intervals.
Technician A says a short circuit to ground in a circuit will decrease resistance. Technician B
says a short circuit will increase current flow. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is C, both technicians
are right. A short to ground has little or no resistance. Current flow increases as resistance
decreases.
When using a voltmeter to check for voltage in a circuit, the voltmeter should first be
connected to check for:
A. source voltage.
B. excessive resistance
C. excessive amperage.
D. a good ground. - CORRECT ANSWERS✅✅The correct answer is A. A voltmeter should
first be used to see if the circuit is getting power before during further tests.
When checking the green eye of a sealed maintenance-free battery, no color seen indicates
that the battery is:
A. undercharged.
ACTUAL QUESTIONS AND CORRECT
ANSWERS
An air bag system is being serviced, Technician A says to disconnect the yellow SRS
connectors at the front of the vehicle. Technician B says to disconnect and isolate the
negative battery cable.
Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is B. Always disconnect
the negative battery cable and wrap with tape so contact cannot be made. Follow the specific
vehicle's disarming instructions, as some SRS system can retain backup power for an
additional period of time.
Which of these should be used when soldering electrical wiring connections?
A. Rosin core flux
B. Acid core flux
C. Sulfur core flux
D. None of the above - CORRECT ANSWERS✅✅The correct answer is A. For best results
and less corrosion at the solder point, a rosin core flux should be used.
When testing computer-controlled systems, a digital multimeter should be used with an input
impedance of at least:
A. 10k ohms
B. 100k ohms
C. 1 megohm
D. 10 megohms - CORRECT ANSWERS✅✅The correct answer is D. For maximum
protection to the computer-controlled system, or any electronic circuit, it is best to use at least
a 10-megohm impedance digital multimeter.
,When troubleshooting a slow drain on the battery, which of these diagnostic tools should be
used?
A. Ohmmeter
B. Ammeter
C. Voltmeter
D. Test light - CORRECT ANSWERS✅✅The correct answer is B. Always us an ammeter
or a low amperage amp clamp with your DMM to troubleshoot a slow drain in an electrical
circuit.
The condition of a lead-acid battery is being checked. Technician A says to use a
galvanometer. Technician B says to use a capacitive battery tester. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is B. A galvanometer is
an analog type voltmeter. OEMs almost universally recommend the use of a non-intrusive
conductive-capacitive type battery tester.
While testing a starting circuit on a 5.7L V8 engine, the technician finds that the engine
cranks slowly. The starter current draw is 90 amps, and the battery voltage while cranking is
11 volts. What should the technician do next?
A. Check voltage drop of the starter motor circuit
B. Test the battery capacity
C. Replace starter motor, as a short is indicated
D. Determine condition of the engine - CORRECT ANSWERS✅✅If an engine cranks
slowly and the starter current draw is only 90 amps and the voltage is as high as 11 volts, the
technician should next check for excessive voltage drop in the start motor circuit.
Technician A says that a noisy alternator could be caused by a bad diode. Technician B says
that a noisy alternator could be caused by a worn bearing. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
, D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is C, both technicians
are right. Worn alternator bearings and/or a bad alternator diode will cause the alternator to
be noisy.
A vehicle's turn signals flash too slowly. Technician A claims that the condition could be
caused by a faulty flasher. Technician B says that a bulb may be the wrong type. Who is
right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is C, both technicians
are right. Both an improperly rated flasher and an incorrect wattage bulb can cause the turn
signals to flash at incorrect intervals.
Technician A says a short circuit to ground in a circuit will decrease resistance. Technician B
says a short circuit will increase current flow. Who is right?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A or B - CORRECT ANSWERS✅✅The correct answer is C, both technicians
are right. A short to ground has little or no resistance. Current flow increases as resistance
decreases.
When using a voltmeter to check for voltage in a circuit, the voltmeter should first be
connected to check for:
A. source voltage.
B. excessive resistance
C. excessive amperage.
D. a good ground. - CORRECT ANSWERS✅✅The correct answer is A. A voltmeter should
first be used to see if the circuit is getting power before during further tests.
When checking the green eye of a sealed maintenance-free battery, no color seen indicates
that the battery is:
A. undercharged.
