Exam 20: Lighting Systems

Technician A says vanity lights are on whenever the headlamps are on. Technician B says most trunk lights are on whenever the headlamps are on. Who is correct?

When should a vehicle be equipped with a heavy-duty turn signal flasher?

Which of the following statements concerning LED headlights is NOT true?

Double filament bulbs can be used as the lone bulb in the stoplight circuit, taillight circuit, and the turn signal circuit.

Which of the following is NOT a basic type of headlight used in today's vehicles?

Name the two headlight design that do NOT have a filament.

Most headlight assemblies are provided with ____________________ adjusting screws.

The country that requires that all new vehicles be equipped with daytime running lights for added safety is ____________________.

Some manufacturers recommend coating the prongs and base of the headlights with ____________________ grease to prevent corrosion.

What is the life expectancy of an LED headlight?

The light-sensitive photocell sensor/amplifier of an automatic light system is located ______.

Technician A says on all vehicles, the fuse that protects the backup light system is the same fuse that protects the turn signal system. Technician B says vehicles equipped with automatic transmissions use a combination backup/neutral start switch. Who is correct?

A lamp generates light as current flows through the filament.

Headlight circuit protection devices are being discussed. Technician A says the headlight circuit is protected by a self-resetting circuit breaker. Technician B says the headlight circuit is protected by a single maxi fuse. Who is correct?

On automatic headlight systems that have automatic high beam detection, the sensor [camera] is typically mounted ____________________.

Most composite headlights are vented to release the pressure of heated air.

Technician A says HID [xenon] headlights on vehicles sold in Europe must be self-leveling and equipped with washers. Technician B says HID headlights produce more heat and use more electricity than halogen headlights. Who is correct?

The stoplight switch is normally mounted on the ______.

Composite headlights are being discussed. Technician A says they have replaceable bulbs. Technician B says a cracked or broken lens will prevent the operation of a composite headlamp. Who is correct?

Which of the following are NOT usually controlled by the main light switch assembly?