Exam 20: Lighting Systems

The best place on a vehicle to mount fog lights is ______.

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?

Describe adaptive headlights.

Some light circuits are ground controlled, where the lightbulb has power all the time and the light switch completes the circuit to ground.

A halogen bulb, located within a composite headlamp assembly, will burn out soon after if the assembly is cracked.

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

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

What are some of the advantages of LED-type lights?

Technician A says the condition of the vehicle's springs and shocks should be checked before aligning the headlamps. Technician B says the vehicle should have a full tank of fuel when its headlamps are being adjusted. Who is correct?

Describe how daytime running lights function.

Diagnosis of automatic leveling headlight problems is done with a(n) ______.

Why do some manufacturers protect the headlamp circuit with a circuit breaker instead of a fuse?

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?

List three common locations of courtesy lights.

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

The photocell sensor/amplifier for an automatic light system is usually mounted under a group of perforated holes in the upper instrument panel pad.

Vehicle lighting systems are regulated by federal laws.

The dimmer switch allows the driver to change the intensity of the instrument panel lamps.

How long does it take an HID-type headlight to reach maximum intensity?

Technician A uses the vehicle's built-in bubble level to adjust headlight vertical aim. Technician B uses a screen at ten feet from the vehicle to aim headlights. Who is correct?