C4-6

Question 1

Incandescent Lamps are also known as _________ by the lay consumer.

Answer 1

Light Bulb

Question 2

Familiar threaded base found with ordinary lamp up to 300 W.

Answer 2

Medium Base

Question 3

Smaller threaded base used in ornamental lighting such as chandeliers.

Answer 3

Candelabra Base

Question 4

Larger threaded base found on lamps that are 300 W or greater.

Answer 4

Mogul Base

Question 5

These lamps are used in applications where the difficulty or cost of changing lamps is prohibitive.

Answer 5

Long-life lamps

Question 6

These lamps are special version of standard lamps that are helpful for rough or vibration service.

Answer 6

Rough service lamps

Question 7

These lamps are not unbreakable but they break less frequently and when they break, the shattered glass contained within the plastic coating.

Answer 7

Plastic-coated lamps

Question 8

These lamps are used in decorative and accent lighting applications that require good control or highlighting.

Answer 8

Low-voltage lamps

Question 9

Frequently called halogens lamps, a smaller, brighter, and more expensive version of incandescent lamp.

Answer 9

Tungsten-Halogen Lamps

Question 10

Tungsten-Halogen Lamps contain high-pressure halogen gases such as _________ or _________.

Answer 10

iodine or bromine

Question 11

It produces continuous light by passing electricity through a gas contained within the lamp. Electricity pass through a gas such that it causes the gas to arc.

Answer 11

Gaseous Discharge Lamps

Question 12

An additional device that is required in all gaseous discharge lamps.

Answer 12

Ballast

Question 13

This type of ballast increase and control voltage, heavy noise.

Answer 13

Magnetic or Iron Ballasts

Question 14

This type of ballasts use solid-state electronic components, less noise and capable of dimming lamp output.

Answer 14

Electronic Ballasts

Question 15

This is extremely annoying in quite spaces

Answer 15

Ballast noise

Question 16

It is calculated by dividing the lumen output of a lamp ballast combination by the lumen output of the same lamp on a reference ballast.

Answer 16

Ballast Factor (BF)

Question 17

It is composed of a tubular glass bulb that is covered with a thin phosphor coating on it’s inside surface.

Answer 17

Fluorescent Lamps

Question 18

Are commercially available in straight, U-shaped of circular tubes in a variety of sizes, wattages, voltages, colors, and types of base.

Answer 18

Linear fluorescent lamps (LFL)

Question 19

Offer higher light (lumen) output in comparison to standard output fluorescent lamp. It consume more power and have significantly lower efficacies.

Answer 19

High Output (HO) and Very High Output (VHO) Fluorescent Lamp

Question 20

Miniaturized fluorescent lamps manufactured with integral ballast and a standard screw base that can be installed in a standard light fixture in place of incandescent lamps.

Answer 20

Compact Fluorescent Lamps (CFL)

Question 21

The ________ blend in a fluorescent lamp determines the color temperature and color rendering of the light emitted by the lamp.

Answer 21

phosphor

Question 22

Are the most popular, least expensive, and lowest quality phosphors.

Answer 22

Halo phosphors

Question 23

The ratio of light (luminous flux, in lumens) emitted by a fluorescent luminaire to the electrical energy consumed, including the ballast.

Answer 23

Luminaire Efficacy Rating (LER)

Question 24

It produce a very bright light by discharging an arc.

Answer 24

High Intensity Discharge Lamps

Question 25

One of components of HID lamps that contains the fill gas.

Answer 25

Internal arc tube

Question 26

One of the components of HID lamps that surrounds the arc tube to avoid shattering that could result from direct contact with water and other fluids.

Answer 26

Large outer glass bulb

Question 27

These are the first commercially available HID lamps.

Answer 27

Mercury Vapor Lamps

Question 28

Are constructed similar to MV lamps except that it has various metal halides added to mercury and argon in the glass fill. It offers much better efficacy and color rendention.

Answer 28

Metal Halide Lamps

Question 29

It contain an internal arc tube made of translucent ceramic material rather than quartz glass because of the high temperature.

Answer 29

High-Pressure Sodium Lamps

Question 30

Are a blend between HID and fluorescent technologies. It produces a monochromatic yellow light consisting almost entirely of orange-yellow wavelengths.

Answer 30

Low-Pressure Sodium Lamps

Question 31

A restart delay called the __________ of one to several minutes is needed before the low-pressure sodium lamp reaches its peak output.

Answer 31

restrike time

Question 32

Combine the luminous efficiency of an HID lamp with the good color rendering capability of an incandescent lamp. It has no start time and thus total luminous flux is available immediately.

Answer 32

Blended Lamps

Question 33

They are directly interchangeable with incandescent lamps and have a longer lamp life but they cannot be dimmed.

Answer 33

Mercury-Tungsten Blended Lamps

Question 34

It refers to a type of lighting that uses light-emitting diodes (LEDs), organic light-emitting diode lights (OLEDs), or polymer light-emitting diodes (PLEDs).

Answer 34

Solid-State Lighting

Question 35

Semiconductor that consists of a chip of semiconducting material treated to create a structure with two electro charged electrons.

Answer 35

Light-Emitting Diodes

Question 36

Based on aluminum gallium arsenide (AlGaAs).

Answer 36

Red LEDs

Question 37

Are from indium gallium phosphide (InGan)

Answer 37

Blue LED

Question 38

Are from aluminum gallium phosphide (AlGaP)

Answer 38

Green LEDs

Question 39

White light can be achieved with LEDs in two main ways.

Answer 39

1. Phosphor conversion 2. RGB systems

Question 40

____________ in which a blue or near-UV chip is coated with phosphor(s) to emit white light: and ______________ in which light from multiple monochromatic LEDs is mixed, resulting in white light.

Answer 40

Phosphor conversion and RGB systems