Automotive Electrical I Chapter 3 and 4
UPDATED ACTUAL Exam Questions and
CORRECT Answers
All of the following are true concerning electrical shorts, EXCEPT:
a. A short can add a parallel leg to the circuit, which lowers the entire circuit's resistance.
b. A short can result in a blown fuse.
c. A short decreases amperage in the circuit.
d. A short bypasses the circuit's intended path. - CORRECT ANSWER - c. A short
decreases amperage in the circuit.
A "blown" fusible link is identified by:
a. A burned-through metal wire in the capsule.
b. A bubbling of the insulator material around the link.
c. All of the above.
d. None of the above - CORRECT ANSWER - b. A bubbling of the insulator material
around the link.
All of the statements concerning circuit components are true, EXCEPT:
a. A switch can control the on/off operation of a circuit.
b. A switch can direct the flow of current through various circuits.
c. A relay can be an SPDT-type switch.
d. A potentiometer changes voltage drop due to the function of temperature. - CORRECT
ANSWER - d. A potentiometer changes voltage drop due to the function of temperature.
Which of the following statements is/are correct?
a. A zener diode is an excellent component for regulating voltage.
b. A reverse-biased diode lasts longer than a forward-biased diode.
c. The switches of a transistor last longer than those of a relay.
,d. Both A and C - CORRECT ANSWER - a. A zener diode is an excellent component for
regulating voltage.
The light-emitting diode (LED):
a. Emits light when it is reverse-biased.
b. Has a variable turn-on voltage.
c. Has a light color that is defined by the materials used to construct the diode.
d. Has a turn-on voltage that is usually less than standard diodes. - CORRECT ANSWER -
c. Has a light color that is defined by the materials used to construct the diode.
Which of the following is the correct statement?
a. An open means there is continuity in the circuit.
b. A short bypasses a portion of the circuit.
c. High-amperage draw indicates an open circuit.
d. High resistance in a circuit increases current flow. - CORRECT ANSWER - b. A short
bypasses a portion of the circuit.
Transistors:
a. Can be used to control the switching on/off of a circuit.
b. Can be used to amplify voltage.
c. Control high current with low current. - CORRECT ANSWER - d. All of the above.
All of the following are true, EXCEPT:
a. Voltage drop can cause a lamp in a parallel circuit to burn brighter than normal.
b. Excessive voltage drop may appear on either the insulated or the grounded return side of a
circuit.
c. Increased resistance in a circuit decreases current.
d. A diode is used as an electrical one-way check valve - CORRECT ANSWER - a.
Voltage drop can cause a lamp in a parallel circuit to burn brighter than normal.
, Which statement is correct concerning diodes?
a. Diodes are aligned to allow current flow in one direction only.
b. Diodes can be used to rectify DC voltages into AC voltages.
c. The stripe is on the anode side of the diode.
d. Normal turn-on voltage of a standard diode is 1.5 volts. - CORRECT ANSWER - a.
Diodes are aligned to allow current flow in one direction only.
A capacitor:
a. Consumes electrical power.
b. Stores electrical charges.
c. Both A and B.
d. Neither A nor B. - CORRECT ANSWER - b. Stores electrical charges.
Circuit defects are being discussed. Technician A says an open can be only on the ground side of
the circuit. Technician B says an unwanted resistance can result from a corroded connector. Who
is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - b. B only
Testing the fuse is being discussed. Technician A says sometimes a visual inspection of a fuse or
fusible link does not reveal that it is open. Technician B says to use a jumper wire to bypass the
fuse in order to test the circuit. Who is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - a. A only
UPDATED ACTUAL Exam Questions and
CORRECT Answers
All of the following are true concerning electrical shorts, EXCEPT:
a. A short can add a parallel leg to the circuit, which lowers the entire circuit's resistance.
b. A short can result in a blown fuse.
c. A short decreases amperage in the circuit.
d. A short bypasses the circuit's intended path. - CORRECT ANSWER - c. A short
decreases amperage in the circuit.
A "blown" fusible link is identified by:
a. A burned-through metal wire in the capsule.
b. A bubbling of the insulator material around the link.
c. All of the above.
d. None of the above - CORRECT ANSWER - b. A bubbling of the insulator material
around the link.
All of the statements concerning circuit components are true, EXCEPT:
a. A switch can control the on/off operation of a circuit.
b. A switch can direct the flow of current through various circuits.
c. A relay can be an SPDT-type switch.
d. A potentiometer changes voltage drop due to the function of temperature. - CORRECT
ANSWER - d. A potentiometer changes voltage drop due to the function of temperature.
Which of the following statements is/are correct?
a. A zener diode is an excellent component for regulating voltage.
b. A reverse-biased diode lasts longer than a forward-biased diode.
c. The switches of a transistor last longer than those of a relay.
,d. Both A and C - CORRECT ANSWER - a. A zener diode is an excellent component for
regulating voltage.
The light-emitting diode (LED):
a. Emits light when it is reverse-biased.
b. Has a variable turn-on voltage.
c. Has a light color that is defined by the materials used to construct the diode.
d. Has a turn-on voltage that is usually less than standard diodes. - CORRECT ANSWER -
c. Has a light color that is defined by the materials used to construct the diode.
Which of the following is the correct statement?
a. An open means there is continuity in the circuit.
b. A short bypasses a portion of the circuit.
c. High-amperage draw indicates an open circuit.
d. High resistance in a circuit increases current flow. - CORRECT ANSWER - b. A short
bypasses a portion of the circuit.
Transistors:
a. Can be used to control the switching on/off of a circuit.
b. Can be used to amplify voltage.
c. Control high current with low current. - CORRECT ANSWER - d. All of the above.
All of the following are true, EXCEPT:
a. Voltage drop can cause a lamp in a parallel circuit to burn brighter than normal.
b. Excessive voltage drop may appear on either the insulated or the grounded return side of a
circuit.
c. Increased resistance in a circuit decreases current.
d. A diode is used as an electrical one-way check valve - CORRECT ANSWER - a.
Voltage drop can cause a lamp in a parallel circuit to burn brighter than normal.
, Which statement is correct concerning diodes?
a. Diodes are aligned to allow current flow in one direction only.
b. Diodes can be used to rectify DC voltages into AC voltages.
c. The stripe is on the anode side of the diode.
d. Normal turn-on voltage of a standard diode is 1.5 volts. - CORRECT ANSWER - a.
Diodes are aligned to allow current flow in one direction only.
A capacitor:
a. Consumes electrical power.
b. Stores electrical charges.
c. Both A and B.
d. Neither A nor B. - CORRECT ANSWER - b. Stores electrical charges.
Circuit defects are being discussed. Technician A says an open can be only on the ground side of
the circuit. Technician B says an unwanted resistance can result from a corroded connector. Who
is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - b. B only
Testing the fuse is being discussed. Technician A says sometimes a visual inspection of a fuse or
fusible link does not reveal that it is open. Technician B says to use a jumper wire to bypass the
fuse in order to test the circuit. Who is correct?
a. A only
b. B only
c. Both A and B
d. Neither A nor B - CORRECT ANSWER - a. A only
