Lighting Systems

Question 1

What type of light emits when current flows through a tungsten filament?

Answer 1

Incandescent

Question 2

What type of light uses 30% less voltage to maintain light after start up?

Answer 2

Neon

Question 3

What type of light functions under vaccuum?

Answer 3

Sealed-beam

Question 4

What type of light produces in short wave ultraviolet light?

Answer 4

Fluorescent

Question 5

What type of light produces when current passes through a semi conductor?

Answer 5

LED

Question 6

What type of light emits by electric arcs jumping across tungsten electrodes?

Answer 6

High-intensity Discharge (AKA Xenon)

Question 7

How long does it take a HID bulb to turn from a white glow to a blue glow?

Answer 7

2 weeks

Question 8

Which 2 bulb types use ballast?

Answer 8

HID and Fluorescent

Question 9

Which component converts DC to AC

Answer 9

Ballast

Question 10

What is the clear capsule surrounding the bulb filament called?

Answer 10

Envelope

Question 11

What gas is normally used inside the envelope of a halogen bulb?

Answer 11

Argon or Iodine

Question 12

What 2 components are found in a HID bulb?

Answer 12

Metal salts & Xenon gas

Question 13

Which component is responsible for spiking the voltage of a HID assembly?

Answer 13

The Ignitor

Question 14

What Voltage is required to initially start an HID headlight?

Answer 14

15,000v to 30,000v

Question 15

What is the operating voltage of an HID system?

Answer 15

80v

Question 16

When did the US permit replaceable blubs?

Answer 16

1983

Question 17

When were DRL’s made mandatory in Canada?

Answer 17

1990

Question 18

How many degrees can automatic adjusting headlights move?

Answer 18

5° to the left & 15° to the right

Question 19

at what distance do you park the car from the wall when adjusting headlights without machine?

Answer 19

8m (25ft.)

Question 20

How long does it take a conventional tungsten blub to illuminate?

Answer 20

200 milliseconds

Question 21

How long does it take a neon lamp to illuminate?

Answer 21

3 milliseconds

Question 22

How long does it take an LED to illuminate?

Answer 22

Less than a millisecond

Question 23

How many amps can a Halogen Bulb use?

Answer 23

up to 25A

Question 24

What electronic device do automatic dimming headlights use to activate the dimming circuit?

Answer 24

photo diode

Question 25

What device must be included in the circuit when adding auxiliary lights?

Answer 25

Relay

Question 26

What type of headlights are used in vehicles with electronically adjusting headlights?

Answer 26

HID

Question 27

What type of switch is used in a simple turn signal flasher?

Answer 27

Bi-metal

Question 28

What is the name for the feature that illuminates the high-beam headlights even when the headlight switch is off or in the low beam position?

Answer 28

“flash to pass”

Question 29

What is the most common method of controlling daytime running lights?

Answer 29

applying reduced voltage to headlights

Question 30

Fog lights must be mounted in which location of the vehicle?

Answer 30

below the bumper & away from the centerline

Question 31

What circuit protection device enables the headlights to continue to operate, even after a temporary short circuit?

Answer 31

circuit breaker

Question 32

What is the most likely problem if the interior lights don’t operate when the door is opened, but may be turned on with the interior light switch?

Answer 32

Door switch stuck in open position

Question 33

Why do HID headlights appear blue in color?

Answer 33

burning gas gives off a blue light

Question 34

What type of gas is used in an HID headlight?

Answer 34

Xenon