Exam 20: Lighting Systems

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

Technician A says blinking headlights can be caused by the self-resetting circuit breaker installed between battery and the headlight switch, that is kicking out due to a short. Technician B says flickering vehicle lights can be caused by a loose electrical connection. Who is correct?

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

The multifunction switch is normally mounted on the ______.

A lamp generates light as current flows through the filament.

Flash-to-pass systems blink the high beams on and off when the turn signal lever is moved to change lanes to pass another vehicle.

The rear light assembly typically includes the ______.

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

Technician A says some condensation on the inside of a sealed beam headlamp is normal. Technician B says the buildup of black spots on the lens of a sealed beam headlamp decreases the brightness of the headlamp. Who is correct?

Which statement concerning HID headlights is NOT true?

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?

List at least five of the advantages of LED-type lights.

Which of the following statements regarding high-intensity discharge headlamps is false?

Circuits that can operate the high beams even if the headlight switch is off are called ____ circuits.

Identify the four basic types of headlights.

The owner of a vehicle with automatic headlights complains that the headlights are always on whenever the vehicle is driven; even in broad daylight. What is the first thing you should check?

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?

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

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

Most modern vehicles have a warning system if the driver's door is opened when the headlights or parking lights are on.