Exam 20: Lighting Systems

List three common locations of courtesy lights.

What are adaptive brake lights?

Sealed beam headlights are being discussed. Technician A say the lens of a sealed beam headlight has convex prisms molded into its inner surface to concentrate the light into a narrow beam. Technician B says a sealed beam is an airtight assembly containing a filament, reflector, and lens. Who is correct?

Daytime running lights are being discussed. Technician A says DRLs turn on when the parking brake is applied. Technician B says the DRL module applies 6 volts to the high beam filaments when the ignition is on and the headlights are turned off. Who is correct?

Which tool is used to diagnose automatic leveling headlight problems?

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?

On older vehicles, concealed (pop-up)headlights were often operated by vacuum.

The lower filament of a dual filament headlamp is for the high beam.

When replacing a composite lamp, do not handle the bulb by its base.

A(n)______-type headlight system features a mechanical shield plate or shutter that is moved up and down as the headlights are switched between low and high beams.

________ ________  is the manufacturer that has introduced a laser headlight system.

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

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

The ____________________ switch provides a means for the driver to select between high or low beam headlamp operation.

What is the life expectancy of an LED headlight?

Flash-to-pass systems are being discussed. Technician A says the high beam filament is turned on when the flash-to-pass switch is closed. Technician B say the flash-to-pass system only works when the headlights or parking lights are turned on. Who is correct?

Technician A says a lamp may contain only one filament. Technician B says some lamps contain two filaments. Who is correct?

What should you consider before you install auxiliary lights?

Standard sealed beams are typically filled with ______.

A technician is diagnosing an HID headlight that intermittently turns on and off. Technician A says the problem is a worn out HID arc tube{bulb]. Technician B says the problem is a blown headlight fuse. Who is correct?