Heavy Truck Electrical Michigan
Mechanic Study Guide Questions
And Answers Rated A+
STUDY GUIDE
1. The battery is continuously overcharged. What will
cause this problem?
A. A defective regulator or alternator.
B. A worn or damaged battery.
C. A grounded indicator light.
D. All of the above.
Correct Answer: A. A defective regulator or alternator.
2. To check resistance in the starter circuit, you would
connect the negative lead of the voltmeter to the
negative post of the battery and the positive lead of
the voltmeter to:
A. The starter frame.
B. The starter relay terminal.
C. The battery terminal on the solenoid.
D. The positive post of the battery.
,Correct Answer: A. The starter frame.
3. Refer to the windshield wiper circuit in the image.
Both high and low speeds work okay. The wipers do
not park properly but stop as soon as the dash switch
is off. This is likely due to:
A. An open circuit at Point A.
B. An open circuit at Point B.
C. A short circuit to ground at Point C.
D. A bad ground at the dash switch D.
Correct Answer: A. An open circuit at Point A.
4. With a seven-wire electrical connection, the white
wire will most likely be for the:
A. Brake light circuit.
B. Taillight circuit.
C. Turn signal circuit.
D. Ground circuit.
Correct Answer: D. Ground circuit.
5. Maximum alternator amperage is limited by:
A. The design and size of the field and stator coils.
B. The size of the diodes.
, C. The type of ignition system and starter used.
D. The voltage regulator.
Correct Answer: A. The design and size of the field and
stator coils.
6. A fully charged battery cell produces approximately
how many volts?
A. 1 volt.
B. 2 volts.
C. 4 volts.
D. 3 volts.
Correct Answer: B. 2 volts.
7. Every few days a battery goes "dead." A current
draw is suspected. What should you do to verify the
problem?
A. Hook up an ammeter in series with the battery ground
cable.
B. Hook up a voltmeter in series with the battery ground cable.
C. Hook up an ohmmeter in series with the battery ground
cable.
D. Hook up a voltmeter at the positive terminal of the battery
and the battery terminal on the starter solenoid.
Mechanic Study Guide Questions
And Answers Rated A+
STUDY GUIDE
1. The battery is continuously overcharged. What will
cause this problem?
A. A defective regulator or alternator.
B. A worn or damaged battery.
C. A grounded indicator light.
D. All of the above.
Correct Answer: A. A defective regulator or alternator.
2. To check resistance in the starter circuit, you would
connect the negative lead of the voltmeter to the
negative post of the battery and the positive lead of
the voltmeter to:
A. The starter frame.
B. The starter relay terminal.
C. The battery terminal on the solenoid.
D. The positive post of the battery.
,Correct Answer: A. The starter frame.
3. Refer to the windshield wiper circuit in the image.
Both high and low speeds work okay. The wipers do
not park properly but stop as soon as the dash switch
is off. This is likely due to:
A. An open circuit at Point A.
B. An open circuit at Point B.
C. A short circuit to ground at Point C.
D. A bad ground at the dash switch D.
Correct Answer: A. An open circuit at Point A.
4. With a seven-wire electrical connection, the white
wire will most likely be for the:
A. Brake light circuit.
B. Taillight circuit.
C. Turn signal circuit.
D. Ground circuit.
Correct Answer: D. Ground circuit.
5. Maximum alternator amperage is limited by:
A. The design and size of the field and stator coils.
B. The size of the diodes.
, C. The type of ignition system and starter used.
D. The voltage regulator.
Correct Answer: A. The design and size of the field and
stator coils.
6. A fully charged battery cell produces approximately
how many volts?
A. 1 volt.
B. 2 volts.
C. 4 volts.
D. 3 volts.
Correct Answer: B. 2 volts.
7. Every few days a battery goes "dead." A current
draw is suspected. What should you do to verify the
problem?
A. Hook up an ammeter in series with the battery ground
cable.
B. Hook up a voltmeter in series with the battery ground cable.
C. Hook up an ohmmeter in series with the battery ground
cable.
D. Hook up a voltmeter at the positive terminal of the battery
and the battery terminal on the starter solenoid.
