AUTOMOTIVE ELECTRICAL UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What is the name of the formula E = I x R? - CORRECT ANSWER - omh's law
What is the current in a 12-volt circuit with a 6-ohm resistor connected series? - CORRECT
ANSWER - 2 amps
The unit for measuring electrical current is _____. - CORRECT ANSWER - amperes
The unit for measuring electrical resistance is _____. - CORRECT ANSWER - ohms
The unit for measuring electrical pressure (force) is _____. - CORRECT ANSWER - volts
Which of the following is a source of energy in an automobile's electrical system? - CORRECT
ANSWER - both A and B
In the formula E = I x R, the E represents _____. - CORRECT ANSWER - voltage
In the formula E = I x R, the I represents_____. - CORRECT ANSWER - current
In the formula E = I x R, the R represents_____. - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER -
neither A or 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? - CORRECT ANSWER - both A and B
Technician A says the conventional theory of current flow states that current flows from negative
to positive. Technician B says the electron current flow theory states that electrons move from
negative to positive. Who is correct? - CORRECT ANSWER - B only
All the following parts are used as circuit protection EXCEPT: - CORRECT ANSWER -
relay
A _____ is an electromagnet with a movable core that converts electrical current into mechanical
movement. - CORRECT ANSWER - solenoid
Wire sizes are being discussed. Technician A says an AWG 20 gauge wire is larger than an AWG
22 gauge wire. Technician B says a metric 1.0 gauge wire is smaller than a metric .8 gauge wire.
- CORRECT ANSWER - A only
Which of the statements concerning parallel circuits is NOT true? - CORRECT
ANSWER - The combined voltage drop of all the legs equals the total voltage drop
Which statement concerning series circuits is NOT true? - CORRECT ANSWER - The
total resistance is equal to the lowest resistance in the circuit
Technician A says when there is a complete path through the electrical circuit, the circuit is said
to be open. Technician B says when the circuit path is broken or interrupted the circuit is said to
be closed. Who is right? - CORRECT ANSWER - neither A nor B
ACTUAL Exam Questions and CORRECT
Answers
What is the name of the formula E = I x R? - CORRECT ANSWER - omh's law
What is the current in a 12-volt circuit with a 6-ohm resistor connected series? - CORRECT
ANSWER - 2 amps
The unit for measuring electrical current is _____. - CORRECT ANSWER - amperes
The unit for measuring electrical resistance is _____. - CORRECT ANSWER - ohms
The unit for measuring electrical pressure (force) is _____. - CORRECT ANSWER - volts
Which of the following is a source of energy in an automobile's electrical system? - CORRECT
ANSWER - both A and B
In the formula E = I x R, the E represents _____. - CORRECT ANSWER - voltage
In the formula E = I x R, the I represents_____. - CORRECT ANSWER - current
In the formula E = I x R, the R represents_____. - CORRECT ANSWER - 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? - CORRECT ANSWER - 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? - CORRECT ANSWER -
neither A or 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? - CORRECT ANSWER - both A and B
Technician A says the conventional theory of current flow states that current flows from negative
to positive. Technician B says the electron current flow theory states that electrons move from
negative to positive. Who is correct? - CORRECT ANSWER - B only
All the following parts are used as circuit protection EXCEPT: - CORRECT ANSWER -
relay
A _____ is an electromagnet with a movable core that converts electrical current into mechanical
movement. - CORRECT ANSWER - solenoid
Wire sizes are being discussed. Technician A says an AWG 20 gauge wire is larger than an AWG
22 gauge wire. Technician B says a metric 1.0 gauge wire is smaller than a metric .8 gauge wire.
- CORRECT ANSWER - A only
Which of the statements concerning parallel circuits is NOT true? - CORRECT
ANSWER - The combined voltage drop of all the legs equals the total voltage drop
Which statement concerning series circuits is NOT true? - CORRECT ANSWER - The
total resistance is equal to the lowest resistance in the circuit
Technician A says when there is a complete path through the electrical circuit, the circuit is said
to be open. Technician B says when the circuit path is broken or interrupted the circuit is said to
be closed. Who is right? - CORRECT ANSWER - neither A nor B
