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ASE A6 Practice Test

Take this free ASE A6 Practice Test to study for your ASE A6 certification exam.

The National Institute for Automotive Service Excellence (ASE) identifies Electrical / Electronic Systems as an individual service area for certification (A6). The diagnosis and repair of the following subjects are covered:

  • General Electrical / Electronic Systems
  • Battery and Starting Systems
  • Charging Systems
  • Lighting Systems
  • Body Electrical Systems
There are 60 questions on the exam, 50 of which are scored, and 90 minutes is given to complete it.

To prepare for the ASE A6 exam, use Tests.com's ASE A6 Practice Test. It is written by Dr. John Kershaw, an ASE test question developer and ASE Certified Master Technician. Our interactive test platform allows you to simulate the exam. Take as many practice tests as you need. There's no time limit or recurrent charges.
 

If you are interested in obtaining more than one ASE A Series certification, use our Complete A1-A8 Practice Test Kit with 800 questions.

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General Electrical/Electronic System Diagnosis 

1 When using a DMM (Digital Multimeter) voltmeter function to check for a voltage drop, meter leads should be connected in which of the following ways?
Incorrect. Please choose another answer.
Voltage is always checked in parallel or across the device or circuit.

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2 Which of the following is correct regarding a series circuit?
Incorrect. Please choose another answer.
Based on Kirchhoff's Voltage Law: Voltage higher before resistance than after, which is the result of total applied voltage not equal at both ends of a single load circuit. Resistance in circuit opposes electron flow with resulting voltage loss applied to load. The Loss is voltage drop with the voltage lost/consumed as current moves through resistance. HIGHER Resistance, HIGHER DROP.
3 When a Digital Multimeter (DMM) is used to measure DC voltage and is connected in parallel to the load device, which of the following defines the reading?
Incorrect. Please choose another answer.
Based on Kirchhoff's Voltage Law: Sum of voltage drops in any circuit will equal source VOLTAGE or VOLTAGE applied to circuit.
4 Which of the following tools can be used to check the continuity of wires that carry digital signals?
Incorrect. Please choose another answer.
A logic probe is the only device that measures digital signals.

Battery and Starting System Diagnosis and Repair 

5 Using a DMM (Digital Multimeter), a fully charged 12 volt battery should indicate how much voltage on the open circuit voltage (OCV) test?
Incorrect. Please choose another answer.
The standard is 2.1 volts per cell and 2.1 times 6 is 12.6 volts.

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6 Two technicians are discussing a battery's state of charge. Technician A says a specific gravity of 1.225 at 80F indicates that a battery's state of charge is approximately 75%. Technician B says you can use a hydrometer to check battery state of charge on a maintenance free battery. Who is right?
Incorrect. Please choose another answer.
Technician A is correct and Technician B is wrong because maintenance free batteries do not have openings to check the specific gravity of the electrolyte with a hydrometer.
7 When performing a load test on a battery, a technician finds that the battery voltage drops below specifications. Which of the following is the MOST likely action to perform?
Incorrect. Please choose another answer.
The battery was tested under load and failed.
8 Two technicians are discussing testing a battery using an electronic conductance or continuity tester. Technician A says some of these testers can load test a battery. Technician B says you need to make sure that the ignition switch and all accessories are off. Who is right?
Incorrect. Please choose another answer.
Technician A is wrong because this device cannot apply a load. It checks battery conductance.

Charging System Diagnosis and Repair 

9 Two technicians are discussing an alternator with zero output. Technician A says the field circuit may have an open circuit. Technician B says the fusible link may be open from the battery to the alternator. Who is right?
Incorrect. Please choose another answer.
Both statements are correct.
10 This question is not like the ones above. It has the word LEAST. For this question, look for the choice that would LEAST LIKELY cause the described situation. Read the entire question carefully before choosing your answer. An alternator has low output and is being full-fielded to determine the cause. Which of the following is the LEAST likely result of full-fielding the alternator?
Incorrect. Please choose another answer.
Full fielding removes the regulator from controlling field current allowing the alternator to go to full output and is unlikely to produce a low battery voltage. This action normally produces high current and voltage. P (Power) = I (Current) x E (Voltage) and is least likely to occur.

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11 Technician A says a loose serpentine alternator drive belt could cause overcharging. Technician B says undersized wiring between the alternator and the battery could cause undercharging. Who is right?
Incorrect. Please choose another answer.
Technician A is wrong because a slipping belt will cause undercharging. Technician B is correct because undersize wiring will cause undercharging due to higher resistance.
12 The figure on the right shows a belt tensioner with four lines to indicate belt wear and the need for replacement. Technician A says upon installation of a new belt, the three line marks close to each other should be very close to the ARROW on the base. Technician B says the belt should be replaced if the single line mark lines up with the ARROW on the base. Who is right?
Incorrect. Please choose another answer.
Both statements regarding the illustration are correct.

Lighting Systems Diagnosis and Repair 

13 Technician A says high-intensity discharge (HID) headlights are generally brighter and have a blue tint. Technician B says a defective turn signal bulb on one side can cause the turn signal on that side not to blink. Who is right?
Incorrect. Please choose another answer.
Both statements are correct.

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14 Which of the following is the LEAST likely cause of a dim headlight?
Incorrect. Please choose another answer.
Low alternator output is the least likely cause. All of the other choices will cause a dim headlight.
15 Technician A says you aim HID (High Intensity Discharge) headlights on a level floor with an unloaded vehicle. Technician B says when aiming any headlights, you must follow the state inspection specifications. Who is right?
Incorrect. Please choose another answer.
Both statements are correct
16 Technician A says an aiming screen will work on any headlight design to aim the headlights. Technician B says mechanical aimers are used on HID (High Intensity Discharge) headlights. Who is right?
Incorrect. Please choose another answer.
Technician A is correct because the aiming screen is the tool of choice due to the many different headlight designs used. Technician B is wrong because mechanical aimers are no longer used and were never used on HID headlights.

Instrument Cluster & Driver Information Systems Diagnosis & Repair 

17 Which of the following describes the MOST common type of electrical wiring used in instrument lighting?
Incorrect. Please choose another answer.
Copper stranded type electrical wiring is the correct answer because the other types are not common.
18 What type of solder is required to repair the instrument panel wiring?
Incorrect. Please choose another answer.
Rosin core is the specified type of solder to use on any electrical repair to insure integrity.

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19 A dash indicator warning lamp does not light when the key is in the ON or START positions. What should you check first?
Incorrect. Please choose another answer.
Checking the bulb is the quickest and easiest thing to do.
20 If a fuel gauge reads full, which of the following is the MOST likely cause?
Incorrect. Please choose another answer.
A wire to the sending unit being grounded is the most likely cause on most systems.

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Quality starts with who wrote the material. Our writers:

John Kershaw, ASE Test Prep Expert, is an ASE Certified Master Technician, an auto industry technical instructor and is an ASE Test Question Developer. He is among the first certified by the ASE in 1972.

The ASE A6 certifies technicians for Electrical / Electronic Systems. The following subjects are covered by the exam: 

  • General Electrical / Electronic Systems
  • Battery and Starting Systems
  • Charging Systems
  • Lighting Systems
  • Instrument Cluster and Driver Information Systems
  • Body Electrical Systems
The exam has 60 questions, 50 of which are scored, with a 90 minute completion time.
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