Automotive Electrical Exam Questions
and Answers 100% Pass
What is the name of the formula E = I x R?
a. Voltaire's law
b. Watt's law
c. Ohm's law
d. Ampere's law - ✔✔c. Ohm's law
What is the current in a 12-volt circuit with a 6-ohm resistor connected series?
a. 2 amps
b. 4 amps
c. 6 amps
d. 12 amps - ✔✔a. 2 amps
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,The unit for measuring electrical current is _____.
a. watts
b. volts
c. amperes
d. ohms - ✔✔c. amperes
The unit for measuring electrical resistance is _____.
a. watts
b. ohms
c. amperes
d. volts - ✔✔b. ohms
The unit for measuring electrical pressure (force) is _____.
a. amperes
b. watts
c. ohms
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,d. volts - ✔✔d. volts
Which of the following is a source of energy in an automobile's electrical system?
a. battery
b. AC generator
c. both A and B
d. neither A nor B - ✔✔c. both A and B
In the formula E = I x R, the E represents _____.
a. voltage
b. resistance
c. wattage
d. current - ✔✔a. voltage
In the formula E = I x R, the I represents_____.
a. resistance
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, b. current
c. wattage
d. voltage - ✔✔b. current
In the formula E = I x R, the R represents_____.
a. wattage
b. voltage
c. current
d. resistance - ✔✔d. resistance
Technician A says moving magnetic fields are a source of electrical energy in an
automobile. Technician B says chemical reaction is the only source of electrical energy
in an automobile. Who is correct?
a. A only
b. B only
c. both A and B
d. neither A nor B - ✔✔a. A only
Disclaimer: Original Content, No Copyright Infringement, All Rights Reserved © 2025 4
and Answers 100% Pass
What is the name of the formula E = I x R?
a. Voltaire's law
b. Watt's law
c. Ohm's law
d. Ampere's law - ✔✔c. Ohm's law
What is the current in a 12-volt circuit with a 6-ohm resistor connected series?
a. 2 amps
b. 4 amps
c. 6 amps
d. 12 amps - ✔✔a. 2 amps
Disclaimer: Original Content, No Copyright Infringement, All Rights Reserved © 2025 1
,The unit for measuring electrical current is _____.
a. watts
b. volts
c. amperes
d. ohms - ✔✔c. amperes
The unit for measuring electrical resistance is _____.
a. watts
b. ohms
c. amperes
d. volts - ✔✔b. ohms
The unit for measuring electrical pressure (force) is _____.
a. amperes
b. watts
c. ohms
Disclaimer: Original Content, No Copyright Infringement, All Rights Reserved © 2025 2
,d. volts - ✔✔d. volts
Which of the following is a source of energy in an automobile's electrical system?
a. battery
b. AC generator
c. both A and B
d. neither A nor B - ✔✔c. both A and B
In the formula E = I x R, the E represents _____.
a. voltage
b. resistance
c. wattage
d. current - ✔✔a. voltage
In the formula E = I x R, the I represents_____.
a. resistance
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, b. current
c. wattage
d. voltage - ✔✔b. current
In the formula E = I x R, the R represents_____.
a. wattage
b. voltage
c. current
d. resistance - ✔✔d. resistance
Technician A says moving magnetic fields are a source of electrical energy in an
automobile. Technician B says chemical reaction is the only source of electrical energy
in an automobile. Who is correct?
a. A only
b. B only
c. both A and B
d. neither A nor B - ✔✔a. A only
Disclaimer: Original Content, No Copyright Infringement, All Rights Reserved © 2025 4
