Automotive Electrical UPDATED Exam
Questions and CORRECT Answers
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 - CORRECT ANSWER - 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 - CORRECT ANSWER - a. 2 amps
The unit for measuring electrical current is _____.
a. watts
b. volts
c. amperes
d. ohms - CORRECT ANSWER - c. amperes
The unit for measuring electrical resistance is _____.
a. watts
b. ohms
,c. amperes
d. volts - CORRECT ANSWER - b. ohms
The unit for measuring electrical pressure (force) is _____.
a. amperes
b. watts
c. ohms
d. volts - CORRECT ANSWER - 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 - CORRECT ANSWER - c. both A and B
In the formula E = I x R, the E represents _____.
a. voltage
b. resistance
c. wattage
d. current - CORRECT ANSWER - a. voltage
In the formula E = I x R, the I represents_____.
a. resistance
b. current
, c. wattage
d. voltage - CORRECT ANSWER - b. current
In the formula E = I x R, the R represents_____.
a. wattage
b. voltage
c. current
d. resistance - CORRECT ANSWER - 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 - CORRECT ANSWER - a. A only
Technician A says current will decrease with a decrease in resistance. Technician B says current
will increase with an increase in resistance. Who is correct?
a. A only
b. B only
c. both A and B
d. neither A nor B - CORRECT ANSWER - d. neither A nor B
Technician A says the amount of electricity produced by an AC generator depends on the
strength of the magnetic field. Technician B says it depends on the speed at which the magnetic
field moves past the wires. Who is correct?
Questions and CORRECT Answers
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 - CORRECT ANSWER - 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 - CORRECT ANSWER - a. 2 amps
The unit for measuring electrical current is _____.
a. watts
b. volts
c. amperes
d. ohms - CORRECT ANSWER - c. amperes
The unit for measuring electrical resistance is _____.
a. watts
b. ohms
,c. amperes
d. volts - CORRECT ANSWER - b. ohms
The unit for measuring electrical pressure (force) is _____.
a. amperes
b. watts
c. ohms
d. volts - CORRECT ANSWER - 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 - CORRECT ANSWER - c. both A and B
In the formula E = I x R, the E represents _____.
a. voltage
b. resistance
c. wattage
d. current - CORRECT ANSWER - a. voltage
In the formula E = I x R, the I represents_____.
a. resistance
b. current
, c. wattage
d. voltage - CORRECT ANSWER - b. current
In the formula E = I x R, the R represents_____.
a. wattage
b. voltage
c. current
d. resistance - CORRECT ANSWER - 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 - CORRECT ANSWER - a. A only
Technician A says current will decrease with a decrease in resistance. Technician B says current
will increase with an increase in resistance. Who is correct?
a. A only
b. B only
c. both A and B
d. neither A nor B - CORRECT ANSWER - d. neither A nor B
Technician A says the amount of electricity produced by an AC generator depends on the
strength of the magnetic field. Technician B says it depends on the speed at which the magnetic
field moves past the wires. Who is correct?
