Question 1

Which of the following statements is true concerning headlight circuits?

Accepted Answer

A) The circuits can have totally insulated bulbs and grounded switches . 
B) All lamp filaments are connected in parallel . 
C) Some circuits use lamps that contain both a high beam and a low beam . 
D)  All of these choices . 
A) The circuits can have totally insulated bulbs and grounded switches . 
B) All lamp filaments are connected in parallel . 
C) Some circuits use lamps that contain both a high beam and a low beam . 
D)  All of these choices . D

Question 2

What are non-electronic turn signal flasher units acting like when they supply a rapid on-off-on current flow to the turn signal lamps?

Accepted Answer

A)  Circuit breakers . 
B)  Fuses . 
C) Zener diodes . 
D)  Transistorized regulators . 
A)  Circuit breakers . 
B)  Fuses . 
C) Zener diodes . 
D)  Transistorized regulators . A

Question 3

When the headlights are switched from low beam to high beam all headlights go out. All of the following can cause this EXCEPT:

Accepted Answer

A) Faulty dimmer switch. 
B) Defective high-beam relay . 
C) Defective ignition switch . 
D) Open in high-beam circuit . 
A) Faulty dimmer switch. 
B) Defective high-beam relay . 
C) Defective ignition switch . 
D) Open in high-beam circuit . C

Question 4

Which of the following is NOT used to control the brightness of the instrument panel lamps?

Accepted Answer

A)  Diodes . 
B)  Potentiometers . 
C) Rheostats . 
D)  Pulse width modulation . 
A)  Diodes . 
B)  Potentiometers . 
C) Rheostats . 
D)  Pulse width modulation .

Question 5

How is a three-bulb taillight system wired?

Accepted Answer

A)  It has a common brake turn signal bulb . 
B)  It uses separate bulbs for turn signals and brake lights . 
C) All taillights are wired in series . 
D)  It uses side markers that flash in the rear . 
A)  It has a common brake turn signal bulb . 
B)  It uses separate bulbs for turn signals and brake lights . 
C) All taillights are wired in series . 
D)  It uses side markers that flash in the rear .

Question 6

To assist in headlight aiming, most sealed beam lenses use:

Accepted Answer

A)  Connecting prongs . 
B)  Aiming pads . 
C) Filaments . 
D)  None of these choices . 
A)  Connecting prongs . 
B)  Aiming pads . 
C) Filaments . 
D)  None of these choices .

Question 7

Current to the brake light switch usually comes from the:

Accepted Answer

A)  Ignition switch feed. 
B) Headlight switch feed. 
C) Turn signal switch feed. 
D) Direct battery feed. 
A)  Ignition switch feed. 
B) Headlight switch feed. 
C) Turn signal switch feed. 
D) Direct battery feed.

Question 8

Which of the following best describes the function of the bi-xenon headlight system?

Accepted Answer

A) Uses double filament headlights to provide the high beam output. 
B) Use a chamber filled with multiple xenon gases that are ignited at different temperatures to provide high beam and low beam operation. 
C) Uses multiple chamber of xenon gas that are ignited based on dimmer switch position. One chamber is for low beam, and both chambers are ignited for high beam. 
D) None of these choices. 
A) Uses double filament headlights to provide the high beam output. 
B) Use a chamber filled with multiple xenon gases that are ignited at different temperatures to provide high beam and low beam operation. 
C) Uses multiple chamber of xenon gas that are ignited based on dimmer switch position. One chamber is for low beam, and both chambers are ignited for high beam. 
D) None of these choices.

Question 9

None of the turn signals operate. The LEAST likely cause of this is:

Accepted Answer

A) Burned-out bulbs . 
B) Faulty turn signal switch . 
C) Faulty turn signal flasher . 
D) Open circuit from ignition feed to turn signal . 
A) Burned-out bulbs . 
B) Faulty turn signal switch . 
C) Faulty turn signal flasher . 
D) Open circuit from ignition feed to turn signal .

Question 10

In the two-bulb taillight assembly:

Accepted Answer

A) The brake lights use the high-intensity filament of the taillight bulb. 
B) The current to the brake lights flows through the turn signal switch. 
C) All of these choices. 
D) None of these choices. 
A) The brake lights use the high-intensity filament of the taillight bulb. 
B) The current to the brake lights flows through the turn signal switch. 
C) All of these choices. 
D) None of these choices.

Question 11

Which statement about the cornering light system is NOT correct?

Accepted Answer

A)  The cornering lights use an additional set of contacts in the turn signal switch. 
B) The cornering lights can receive voltage from the ignition switch. 
C) The cornering lights can receive voltage from the headlight switch. 
D) The cornering lights can operate only if the vehicle speed sensor input indicates speeds over 3 mph (4.8 kph). 
A)  The cornering lights use an additional set of contacts in the turn signal switch. 
B) The cornering lights can receive voltage from the ignition switch. 
C) The cornering lights can receive voltage from the headlight switch. 
D) The cornering lights can operate only if the vehicle speed sensor input indicates speeds over 3 mph (4.8 kph).

Question 12

Which of the following statements about the turn signal circuit is NOT correct?

Accepted Answer

A)  The dimmer switch is not a part of the circuit. 
B) Most flashers use a bimetallic strip to open and close the circuit. 
C)  The turn signals operate only when the neutral safety switch is open. 
D) The turn signal switch provides the means for lighting brake lights when the turn signals are operating. 
A)  The dimmer switch is not a part of the circuit. 
B) Most flashers use a bimetallic strip to open and close the circuit. 
C)  The turn signals operate only when the neutral safety switch is open. 
D) The turn signal switch provides the means for lighting brake lights when the turn signals are operating.

Question 13

In a composite headlight:

Accepted Answer

A)  The bulb is replaceable. 
B) A cracked lens will prevent lamp operation. 
C) All of these choices. 
D) None of these choices. 
A)  The bulb is replaceable. 
B) A cracked lens will prevent lamp operation. 
C) All of these choices. 
D) None of these choices.

Question 14

Which of the following lamp designs have the fastest activation time?

Accepted Answer

A) Halogen. 
B)  Neon . 
C) Tungsten . 
D)  LED . 
A) Halogen. 
B)  Neon . 
C) Tungsten . 
D)  LED .

Which of the following statements is true concerning headlight circuits?

What are non-electronic turn signal flasher units acting like when they supply a rapid on-off-on current flow to the turn signal lamps?

When the headlights are switched from low beam to high beam all headlights go out. All of the following can cause this EXCEPT:

Which of the following is NOT used to control the brightness of the instrument panel lamps?

How is a three-bulb taillight system wired?

To assist in headlight aiming, most sealed beam lenses use:

Current to the brake light switch usually comes from the:

Which of the following best describes the function of the bi-xenon headlight system?

None of the turn signals operate. The LEAST likely cause of this is:

In the two-bulb taillight assembly:

Which statement about the cornering light system is NOT correct?

Which of the following statements about the turn signal circuit is NOT correct?

In a composite headlight:

Which of the following lamp designs have the fastest activation time?

Introduction to Automotive Electrical and Electronic Systems Safety

Basic Theories Special Tools and Procedures

Electrical and Electronic Components Basic Electrical Troubleshooting and Service

Wiring and Circuit Diagrams Wiring Repair and Reading Circuit Diagrams

Automotive Batteries Battery Diagnosis and Service

Starting Systems and Motor Designs Starting System Diagnosis and Service

Charging Systems Charging System Testing and Service

Introduction to the Body Computer Body Computer System Diagnosis

Computer Input Sensor Diagnostic Routines

Vehicle Communication Networks Vehicle Multiplexing Diagnostics

Advanced Lighting Circuits Advanced Lighting Systems Diagnosis and Service

Instrumentation and Warning Lamps and Warning Lamp System Diagnosis and Repair

Accessories Electrical Accessories Diagnosis and Repair

Radio Frequency and Infotainment Systems Servicing Radio Frequency and Infotainment Systems

Passive Restraint Systems Servicing Passive Restraint Systems

Vehicles With Alternative Power Sources Hybrid and High-Voltage System Service

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Exam 8: Lighting Circuits Lighting Circuits Repair and Diagnosis

Which of the following statements is true concerning headlight circuits?

What are non-electronic turn signal flasher units acting like when they supply a rapid on-off-on current flow to the turn signal lamps?

When the headlights are switched from low beam to high beam all headlights go out. All of the following can cause this EXCEPT:

Which of the following is NOT used to control the brightness of the instrument panel lamps?

How is a three-bulb taillight system wired?

To assist in headlight aiming, most sealed beam lenses use:

Current to the brake light switch usually comes from the:

Which of the following best describes the function of the bi-xenon headlight system?

None of the turn signals operate. The LEAST likely cause of this is:

In the two-bulb taillight assembly:

Which statement about the cornering light system is NOT correct?

Which of the following statements about the turn signal circuit is NOT correct?

In a composite headlight:

Which of the following lamp designs have the fastest activation time?

Introduction to Automotive Electrical and Electronic Systems Safety

Basic Theories Special Tools and Procedures

Electrical and Electronic Components Basic Electrical Troubleshooting and Service

Wiring and Circuit Diagrams Wiring Repair and Reading Circuit Diagrams

Automotive Batteries Battery Diagnosis and Service

Starting Systems and Motor Designs Starting System Diagnosis and Service

Charging Systems Charging System Testing and Service

Introduction to the Body Computer Body Computer System Diagnosis

Computer Input Sensor Diagnostic Routines

Vehicle Communication Networks Vehicle Multiplexing Diagnostics

Advanced Lighting Circuits Advanced Lighting Systems Diagnosis and Service

Instrumentation and Warning Lamps and Warning Lamp System Diagnosis and Repair

Accessories Electrical Accessories Diagnosis and Repair

Radio Frequency and Infotainment Systems Servicing Radio Frequency and Infotainment Systems

Passive Restraint Systems Servicing Passive Restraint Systems

Vehicles With Alternative Power Sources Hybrid and High-Voltage System Service

Filters