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316 Prefi

316 Prefi
110問 • 4ヶ月前
  • Sabrina Mikhaela Canindo
  • 通報

    問題一覧

  • 1

    is the intensity of light per unit area.

    Illumination or Illuminance (E)

  • 2

    is measured by the normal luminous flux per unit area received by it.

    Illumination or Illuminance (E)

  • 3

    is the energy radiated in the form of waves which produces the sensation of vision to the eyes.

    Light

  • 4

    may be natural from sun or the artificial from the means created by human beings.

    Light

  • 5

    is that part of electromagnetic radiation spectrum capable of exciting the retina and ultimately producing a visual sensation.

    Visible Light

  • 6

    is the intensity of sensation resulting from viewing light sources and backgrounds.

    Brightness

  • 7

    is the quality of visual sensation which is associated with the spectral distribution of light.

    Color

  • 8

    is a strong steady dazzling light.

    Glare

  • 9

    is given by the ratio of luminous flux reflected from a small area of a surface to the total flux incident upon it.

    Reflection Factor or Coefficient of Reflection or Reflectance (p)

  • 10

    is the ratio of the total luminous flux transmitted to it to the total flux Incident on it.

    Transmittance (T) of an Illuminated Diffuse Reflecting Surface

  • 11

    is the ratio of the light absorbed versus the light striking the surface.

    Absorptance (a)

  • 12

    is the ratio of the lumens actually received by a particular surface to the total lumens emitted by the luminous source.

    Coefficient of Utilization or Utilization Factor (n)

  • 13

    is the factor related to the cleanliness of the lamp including the room, replacement of lamp after recommended life, etc.

    Maintenance Factor

  • 14

    is the reciprocal of maintenance factor. Its value is more than unity.

    Depreciation Factor

  • 15

    is the ratio of the luminous flux to the power intake. Its unit is lumens/watt (lm/W).

    Specific Output or Light Efficiency or Efficacy

  • 16

    are classified according to the following: location, requirement and purposes etc.

    Lighting Schemes

  • 17

    In this system almost 90% to 95% light falls directly on the object or surface.

    Direct Lighting

  • 18

    The light is made to fall upon the surface with the help of deep reflectors.

    Direct Lighting

  • 19

    Most used in industries and commercial lighting.

    Direct Lighting

  • 20

    Although this scheme is most efficient it is liable to cause glare and shadow

    Direct Lighting

  • 21

    In this system, the light does not fall directly on the surface but more than 90% of light is directed upwards by using diffusing reflectors.

    Indirect Lighting

  • 22

    Here the ceiling acts as a source of light and this light is uniformly distributed over the surface and glare is reduce to minimum.

    Indirect Lighting

  • 23

    It provides shadow less illumination which is useful for drawing officesand composing rooms.

    Indirect Lighting

  • 24

    It is used for decoration purposes in cinema halls, hotels and etc.

    Indirect Lighting

  • 25

    This is an efficient system of lighting and chances of glare are also reduced.

    Semi-Direct Lighting

  • 26

    Here transparent shades are used through which about 60% light is directed downward and 40% is directed upward.

    Semi-Direct Lighting

  • 27

    This also provides a uniform distribution of light and is best suited for room with high ceilings.

    Semi-Direct Lighting

  • 28

    In this system about 60% to 90% of total light is thrown upward to the ceiling for diffused reflection and the rest reaches the working plane directly.

    Semi Indirect Lighting

  • 29

    A very small amount of light is absorbed by the bowl.

    Semi Indirect Lighting

  • 30

    It is mainly used for interior decoration.

    Semi Indirect Lighting

  • 31

    This system employs such type of luminaires, shades and reflectors which gives equal illumination in all the directions.

    General Lighting

  • 32

    is the difference in brightness between an object and its background.

    Contrast

  • 33

    In this type of lighting most of the light falls directly to the surface or the spot which is required to be illuminated.

    Direct Lighting

  • 34

    In this system, about 90% of the total light energy falls on the object.

    Direct Lighting

  • 35

    In this case light does not reach the surface directly but it is being reflected.

    Indirect Lighting

  • 36

    The lamps are either placed behind a cornice or in suspended opaque bowls.

    Indirect Lighting

  • 37

    In this case about 90% of light energy falls to the ceiling and then it comes to the object.

    Indirect Lighting

  • 38

    There is an opaque reflector below the lamp.

    Indirect Lighting

  • 39

    This type of lighting is used for decoration purposes in cinema, dancing halls, etc.

    Indirect Lighting

  • 40

    This system utilizes luminaires which send most of the light downwards directly on the working plane but a considerable amount reaches the ceilings and walls also.

    Semi-Direct Lighting

  • 41

    This lighting system lies between the direct and indirect lighting wherein the light is partially received by diffuse reflection and partly direct from the source.

    Semi-Indirect Lighting

  • 42

    In this system about 60 to 90% light-upward and remaining downwards.

    Semi-Indirect Lighting

  • 43

    This type of lighting is mostly used for decoration purposes.

    Semi-Indirect Lighting

  • 44

    In this lighting system, luminaires are employed which have almost equal light distribution downwards and upwards.

    General Diffusing System

  • 45

    is a type of reflection when a total reflection of an incident light does not occur but a small portion of it is absorbed by the reflecting surface and an image of the source is formed.

    Specular Reflection

  • 46

    is a type of reflection where the incident light is scattered or diffused in all directions hence no image of the source is formed.

    Diffuse Reflection

  • 47

    is one that scatters light uniformly in all directions. A white blotting paper is the nearest approach to this.

    Perfect Diffuser

  • 48

    describes the quality of light on a scale of 0 (horrible) to 100 (perfect).

    Color Rendering Index

  • 49

    refers to the light emitted from a metal object heated to the point of incandescence.

    Temperature

  • 50

    refers to how reliable the light source is when compared with other lamps that are installed at the same time.

    Color Consistency and Stability

  • 51

    refers to the energy efficiency of a light source measured in lumens per watt.

    Efficacy

  • 52

    evaluates how much of the light is lose by the end of the lamp's life

    Lumen Maintenance

  • 53

    Any device that includes a lamp holder and the means of electrification and support for that device.

    Luminaire

  • 54

    Emit light downward. These include most type of recessed lightings, including downlights and troffers and surface mounted luminaires.

    Direct Luminaires

  • 55

    Emit light upward. These may include many styles of suspended luminaires, scones, and some portable lamps.

    Indirect Luminaires

  • 56

    Emit light upward and downward but not to the side. These include many types of suspended luminaires as well as some table and floor lamps.

    Direct/Indirect Luminaire

  • 57

    Emit light in all directions uniformly. These include most types of bare lamps, globes, chandeliers, pendants and some table and floor lamps.

    Diffuse Luminaires

  • 58

    Are usually designed for specific applications. These may include wall washers.

    Asymmetric Luminaires

  • 59

    Are generally direct luminaires that can be adjusted to throw light in directions other than down. These include track lights, flood lights and accent lights.

    Adjustable Luminaires

  • 60

    are often cans or high hats.

    Recessed Downlights

  • 61

    are used in most commercial applications with a dropped ceiling and no nearby insulation.

    Thermally Protected (T) Luminaires

  • 62

    occur when then luminaire is intended to be in contact with insulation. Housings are typically used in homes, especially in ceilings with attics above.

    Insulated Ceiling (IC)

  • 63

    can be exposed to moist air but not to direct water spray or rain.

    Damp Location Luminaires

  • 64

    can be exposed to direct water spray or rain, including extreme conditions outdoors.

    Wet Location Fixtures

  • 65

    are designed for use in shower stalls and over spas.

    Spa or Shower Fixtures

  • 66

    are equipped with backup battery so as to produce light for at least 90 minutes during a power outage (generally, only compact fluorescent luminaires are so equipped).

    Emergency Fixtures

  • 67

    allow light to focus in art, signage and other interior surfaces and features.

    Adjustable Accent Fixtures

  • 68

    appear as downlights but internally permit horizontal and vertical rotation of the lamp's light beam.

    Recessed Accent Fixtures

  • 69

    allow for flexibility in lamps types and ease of relocation using a single power source.

    Track Lighting Systems

  • 70

    are any type of asymmetric luminaire that is intended to flatly light the wall from the ceiling down to the floor.

    Wallwashers

  • 71

    downlights with a kicker reflector to push up the wall.

    Downlight Wallwashers

  • 72

    - resemble downlights but use a cut cone and angled prismatic lens to spread the light to a point source.

    Recessed Lensed Wallwashers

  • 73

    throw light unto an adjacent wall using a sophisticated reflector system.

    Surface and Semi-Recessed Lens and Open Wallwashers

  • 74

    at the ceiling, they provide a continuous line of fixtures parallel with the illuminated wall.

    Linear or Continuous Recessed Wallwasher

  • 75

    is a technique that places the light source very close to the wall accentuating a textured surface.

    Wall Gazing

  • 76

    use a plastic lens to refract light and distribute it within the desired area below.

    Lensed Troffers

  • 77

    use parabolically shaped aluminum or plastic louvers to shield the lamp for improved visual comfort.

    Parabolic Troffers

  • 78

    are open, and light from fluorescent lamps is bounced off the interior box of the troffer.

    Recessed Indirect Troffers

  • 79

    combine the efficiency of a lensed troffer with the aesthetic quality of the indirect basket troffer.

    High Efficiency Troffers

  • 80

    are fluorescent luminaires having indirect, semi-direct, and direct-indirect lighting distribution: they are designed to illuminate offices and other more finished spaces.

    Linear Lighting Systems

  • 81

    Because the luminaires can be obtained in varying lengths and assembled into patters, they are called.

    Linear Systems

  • 82

    provide uplighting onto a ceiling plane.

    Indirect Cove Fixtures

  • 83

    contain a reflector that pushes the light out into the space.

    Asymmetric Fluorescent Cove Fixtures

  • 84

    vary in beam spread, size and wattage and can be used to illuminate a whole ceiling or simply provide a glow.

    Adjustable LED Cove Fixtures

  • 85

    are very small profile LED strips that typically contain a tape backing.

    LED “Tape” Lights

  • 86

    are specially designed to illuminate a desk area while minimizing veiling reflections.

    Task Lights

  • 87

    is the jewelry of architecture and, in many building types, plays a significant role in building style, period, or motif.

    Decorative Lighting

  • 88

    are ornate luminaires generally consisting of many small incandescent lamps that simulate the effect of candle flames.

    Chandeliers

  • 89

    are also ceiling-hung decorative fixtures.

    Pendants

  • 90

    is used for hanging luminaires less formal than chandeliers that are used in offices, restaurants, and many other places.

    Pendant

  • 91

    are similar to pendants but mount closely to the ceiling to allow use in most rooms with conventional ceiling heights.

    Close-to-Ceiling Luminaires

  • 92

    are wall-mounted luminaires and are often decorative.

    Sconces

  • 93

    are portable luminaires.

    Table and Floor Lamps

  • 94

    are floor lamps designed specifically for uplighting.

    Torchieres

  • 95

    are used for bath vanity and mirror areas.

    Vanity Lights

  • 96

    is a control device that turns lights on and off.

    Switch

  • 97

    The two most common switches.

    Toggle and Decora (Paddle)

  • 98

    is a switch that turns lights off automatically after a certain period.

    Timer Switch

  • 99

    are automatic switches that turn lights on when motion is detected and leave them on until some designated time after the last motion occurs.

    Occupational Sensors

  • 100

    are control devices that vary the light level and power to lights.

    Dimmers

  • Enumeration

    Enumeration

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    Enumeration

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    Identification

    Identification

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    Identification

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    Chapter 1

    Chapter 1

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    Chapter 1

    Chapter 1

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    C1 part 2

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    Chap 1&2

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    Chap 3&4

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    Chap 3&4

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    HUM

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    HUM

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    Lesson 2,3,4,5,6,7

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    Lesson 2,3,4,5,6,7

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    Lesson 1

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    Chap 3,4

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    Chapter 2

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    Chapter 2

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    Lesson 1&2

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    Lesson 1&2

    Lesson 1&2

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    Chapter 3

    Chapter 3

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    Chapter 3

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    Lesson 3&4

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    Lesson 3&4

    Lesson 3&4

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    Chapter 4

    Chapter 4

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    Chapter 4

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    Lesson 5,6&7

    Lesson 5,6&7

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    (2)

    (2)

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    (2)

    (2)

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    Chapter 5

    Chapter 5

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    Chapter 5

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    CE215

    CE215

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    CE215

    CE215

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    MTE4

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    MTE4

    MTE4

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    ES

    ES

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    ES

    ES

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    HUM

    HUM

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    HUM

    HUM

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    DRAW

    DRAW

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    DRAW

    DRAW

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    ECON

    ECON

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    ECON

    ECON

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    Chap1

    Chap1

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    Chap1

    Chap1

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    MECH

    MECH

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    MECH

    MECH

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    chap2

    chap2

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    chap2

    chap2

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    draw

    draw

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    draw

    draw

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    Enumeration

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    Enumeration

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    ttr

    ttr

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    ttr

    ttr

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    g ycu

    g ycu

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    g ycu

    g ycu

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    ENUMERATION

    ENUMERATION

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    ENUMERATION

    ENUMERATION

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    Enumeration

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    Enumeration

    Enumeration

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    Enumeration

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    Enumeration

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    5-8

    5-8

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    5-8

    5-8

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    Chapter 5

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    Chap 6

    Chap 6

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    Chap 6

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    Enumeration

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    Enumeration

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    Enu2

    Enu2

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    Chap 7

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    Enumeration

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    Chap 8

    Chap 8

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    Chap 8

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    L3

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    L3

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    chap9

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    chap9

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    L4

    L4

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    L4

    L4

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    Natural and Forest Resources

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    ECON

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    Water and Mineral Resources

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    MTE4 PREFI

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    Food, Energy, Land Resources

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    HUM PREFI

    HUM PREFI

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    HUM PREFI

    HUM PREFI

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    CE215 PREFI

    CE215 PREFI

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    Enumeration

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    Enumeration

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    8,9

    8,9

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    8,9

    8,9

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    10,11

    10,11

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    10,11

    10,11

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    L8

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    L8

    L8

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    L9

    L9

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    L9

    L9

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    L10

    L10

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    L10

    L10

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    L11

    L11

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    L11

    L11

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    Identification

    Identification

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    Identification

    Identification

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    Ident

    Ident

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    Ident

    Ident

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    enu

    enu

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    enu

    enu

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    officials

    officials

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    officials

    officials

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    events

    events

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    events

    events

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    Q1

    Q1

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    Q1

    Q1

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    1

    1

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    1

    1

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    Enumeration

    Enumeration

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    Enumeration

    Enumeration

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    1-5

    1-5

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    1-5

    1-5

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    2,3,4

    2,3,4

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    2,3,4

    2,3,4

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    1

    1

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    1

    1

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    2

    2

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    2

    2

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    3

    3

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    3

    3

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    4

    4

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    4

    4

    22問 • 1年前
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    enu 2

    enu 2

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    enu 2

    enu 2

    14問 • 1年前
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    5

    5

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    5

    5

    11問 • 1年前
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    ENU

    ENU

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    ENU

    ENU

    21問 • 1年前
    Sabrina Mikhaela Canindo

    1

    1

    Sabrina Mikhaela Canindo · 88問 · 1年前

    1

    1

    88問 • 1年前
    Sabrina Mikhaela Canindo

    2

    2

    Sabrina Mikhaela Canindo · 66問 · 1年前

    2

    2

    66問 • 1年前
    Sabrina Mikhaela Canindo

    midterm

    midterm

    Sabrina Mikhaela Canindo · 38問 · 1年前

    midterm

    midterm

    38問 • 1年前
    Sabrina Mikhaela Canindo

    2.1

    2.1

    Sabrina Mikhaela Canindo · 24問 · 1年前

    2.1

    2.1

    24問 • 1年前
    Sabrina Mikhaela Canindo

    L1

    L1

    Sabrina Mikhaela Canindo · 48問 · 1年前

    L1

    L1

    48問 • 1年前
    Sabrina Mikhaela Canindo

    Mech E3

    Mech E3

    Sabrina Mikhaela Canindo · 38問 · 1年前

    Mech E3

    Mech E3

    38問 • 1年前
    Sabrina Mikhaela Canindo

    Techno

    Techno

    Sabrina Mikhaela Canindo · 146問 · 1年前

    Techno

    Techno

    146問 • 1年前
    Sabrina Mikhaela Canindo

    enu L1

    enu L1

    Sabrina Mikhaela Canindo · 27問 · 1年前

    enu L1

    enu L1

    27問 • 1年前
    Sabrina Mikhaela Canindo

    Mech E2

    Mech E2

    Sabrina Mikhaela Canindo · 14問 · 1年前

    Mech E2

    Mech E2

    14問 • 1年前
    Sabrina Mikhaela Canindo

    1-5

    1-5

    Sabrina Mikhaela Canindo · 186問 · 1年前

    1-5

    1-5

    186問 • 1年前
    Sabrina Mikhaela Canindo

    L1

    L1

    Sabrina Mikhaela Canindo · 52問 · 1年前

    L1

    L1

    52問 • 1年前
    Sabrina Mikhaela Canindo

    Book

    Book

    Sabrina Mikhaela Canindo · 72問 · 1年前

    Book

    Book

    72問 • 1年前
    Sabrina Mikhaela Canindo

    L2

    L2

    Sabrina Mikhaela Canindo · 28問 · 1年前

    L2

    L2

    28問 • 1年前
    Sabrina Mikhaela Canindo

    L3

    L3

    Sabrina Mikhaela Canindo · 80問 · 1年前

    L3

    L3

    80問 • 1年前
    Sabrina Mikhaela Canindo

    Hum 3

    Hum 3

    Sabrina Mikhaela Canindo · 186問 · 1年前

    Hum 3

    Hum 3

    186問 • 1年前
    Sabrina Mikhaela Canindo

    L4

    L4

    Sabrina Mikhaela Canindo · 26問 · 1年前

    L4

    L4

    26問 • 1年前
    Sabrina Mikhaela Canindo

    Obtaining Data

    Obtaining Data

    Sabrina Mikhaela Canindo · 16問 · 1年前

    Obtaining Data

    Obtaining Data

    16問 • 1年前
    Sabrina Mikhaela Canindo

    問題一覧

  • 1

    is the intensity of light per unit area.

    Illumination or Illuminance (E)

  • 2

    is measured by the normal luminous flux per unit area received by it.

    Illumination or Illuminance (E)

  • 3

    is the energy radiated in the form of waves which produces the sensation of vision to the eyes.

    Light

  • 4

    may be natural from sun or the artificial from the means created by human beings.

    Light

  • 5

    is that part of electromagnetic radiation spectrum capable of exciting the retina and ultimately producing a visual sensation.

    Visible Light

  • 6

    is the intensity of sensation resulting from viewing light sources and backgrounds.

    Brightness

  • 7

    is the quality of visual sensation which is associated with the spectral distribution of light.

    Color

  • 8

    is a strong steady dazzling light.

    Glare

  • 9

    is given by the ratio of luminous flux reflected from a small area of a surface to the total flux incident upon it.

    Reflection Factor or Coefficient of Reflection or Reflectance (p)

  • 10

    is the ratio of the total luminous flux transmitted to it to the total flux Incident on it.

    Transmittance (T) of an Illuminated Diffuse Reflecting Surface

  • 11

    is the ratio of the light absorbed versus the light striking the surface.

    Absorptance (a)

  • 12

    is the ratio of the lumens actually received by a particular surface to the total lumens emitted by the luminous source.

    Coefficient of Utilization or Utilization Factor (n)

  • 13

    is the factor related to the cleanliness of the lamp including the room, replacement of lamp after recommended life, etc.

    Maintenance Factor

  • 14

    is the reciprocal of maintenance factor. Its value is more than unity.

    Depreciation Factor

  • 15

    is the ratio of the luminous flux to the power intake. Its unit is lumens/watt (lm/W).

    Specific Output or Light Efficiency or Efficacy

  • 16

    are classified according to the following: location, requirement and purposes etc.

    Lighting Schemes

  • 17

    In this system almost 90% to 95% light falls directly on the object or surface.

    Direct Lighting

  • 18

    The light is made to fall upon the surface with the help of deep reflectors.

    Direct Lighting

  • 19

    Most used in industries and commercial lighting.

    Direct Lighting

  • 20

    Although this scheme is most efficient it is liable to cause glare and shadow

    Direct Lighting

  • 21

    In this system, the light does not fall directly on the surface but more than 90% of light is directed upwards by using diffusing reflectors.

    Indirect Lighting

  • 22

    Here the ceiling acts as a source of light and this light is uniformly distributed over the surface and glare is reduce to minimum.

    Indirect Lighting

  • 23

    It provides shadow less illumination which is useful for drawing officesand composing rooms.

    Indirect Lighting

  • 24

    It is used for decoration purposes in cinema halls, hotels and etc.

    Indirect Lighting

  • 25

    This is an efficient system of lighting and chances of glare are also reduced.

    Semi-Direct Lighting

  • 26

    Here transparent shades are used through which about 60% light is directed downward and 40% is directed upward.

    Semi-Direct Lighting

  • 27

    This also provides a uniform distribution of light and is best suited for room with high ceilings.

    Semi-Direct Lighting

  • 28

    In this system about 60% to 90% of total light is thrown upward to the ceiling for diffused reflection and the rest reaches the working plane directly.

    Semi Indirect Lighting

  • 29

    A very small amount of light is absorbed by the bowl.

    Semi Indirect Lighting

  • 30

    It is mainly used for interior decoration.

    Semi Indirect Lighting

  • 31

    This system employs such type of luminaires, shades and reflectors which gives equal illumination in all the directions.

    General Lighting

  • 32

    is the difference in brightness between an object and its background.

    Contrast

  • 33

    In this type of lighting most of the light falls directly to the surface or the spot which is required to be illuminated.

    Direct Lighting

  • 34

    In this system, about 90% of the total light energy falls on the object.

    Direct Lighting

  • 35

    In this case light does not reach the surface directly but it is being reflected.

    Indirect Lighting

  • 36

    The lamps are either placed behind a cornice or in suspended opaque bowls.

    Indirect Lighting

  • 37

    In this case about 90% of light energy falls to the ceiling and then it comes to the object.

    Indirect Lighting

  • 38

    There is an opaque reflector below the lamp.

    Indirect Lighting

  • 39

    This type of lighting is used for decoration purposes in cinema, dancing halls, etc.

    Indirect Lighting

  • 40

    This system utilizes luminaires which send most of the light downwards directly on the working plane but a considerable amount reaches the ceilings and walls also.

    Semi-Direct Lighting

  • 41

    This lighting system lies between the direct and indirect lighting wherein the light is partially received by diffuse reflection and partly direct from the source.

    Semi-Indirect Lighting

  • 42

    In this system about 60 to 90% light-upward and remaining downwards.

    Semi-Indirect Lighting

  • 43

    This type of lighting is mostly used for decoration purposes.

    Semi-Indirect Lighting

  • 44

    In this lighting system, luminaires are employed which have almost equal light distribution downwards and upwards.

    General Diffusing System

  • 45

    is a type of reflection when a total reflection of an incident light does not occur but a small portion of it is absorbed by the reflecting surface and an image of the source is formed.

    Specular Reflection

  • 46

    is a type of reflection where the incident light is scattered or diffused in all directions hence no image of the source is formed.

    Diffuse Reflection

  • 47

    is one that scatters light uniformly in all directions. A white blotting paper is the nearest approach to this.

    Perfect Diffuser

  • 48

    describes the quality of light on a scale of 0 (horrible) to 100 (perfect).

    Color Rendering Index

  • 49

    refers to the light emitted from a metal object heated to the point of incandescence.

    Temperature

  • 50

    refers to how reliable the light source is when compared with other lamps that are installed at the same time.

    Color Consistency and Stability

  • 51

    refers to the energy efficiency of a light source measured in lumens per watt.

    Efficacy

  • 52

    evaluates how much of the light is lose by the end of the lamp's life

    Lumen Maintenance

  • 53

    Any device that includes a lamp holder and the means of electrification and support for that device.

    Luminaire

  • 54

    Emit light downward. These include most type of recessed lightings, including downlights and troffers and surface mounted luminaires.

    Direct Luminaires

  • 55

    Emit light upward. These may include many styles of suspended luminaires, scones, and some portable lamps.

    Indirect Luminaires

  • 56

    Emit light upward and downward but not to the side. These include many types of suspended luminaires as well as some table and floor lamps.

    Direct/Indirect Luminaire

  • 57

    Emit light in all directions uniformly. These include most types of bare lamps, globes, chandeliers, pendants and some table and floor lamps.

    Diffuse Luminaires

  • 58

    Are usually designed for specific applications. These may include wall washers.

    Asymmetric Luminaires

  • 59

    Are generally direct luminaires that can be adjusted to throw light in directions other than down. These include track lights, flood lights and accent lights.

    Adjustable Luminaires

  • 60

    are often cans or high hats.

    Recessed Downlights

  • 61

    are used in most commercial applications with a dropped ceiling and no nearby insulation.

    Thermally Protected (T) Luminaires

  • 62

    occur when then luminaire is intended to be in contact with insulation. Housings are typically used in homes, especially in ceilings with attics above.

    Insulated Ceiling (IC)

  • 63

    can be exposed to moist air but not to direct water spray or rain.

    Damp Location Luminaires

  • 64

    can be exposed to direct water spray or rain, including extreme conditions outdoors.

    Wet Location Fixtures

  • 65

    are designed for use in shower stalls and over spas.

    Spa or Shower Fixtures

  • 66

    are equipped with backup battery so as to produce light for at least 90 minutes during a power outage (generally, only compact fluorescent luminaires are so equipped).

    Emergency Fixtures

  • 67

    allow light to focus in art, signage and other interior surfaces and features.

    Adjustable Accent Fixtures

  • 68

    appear as downlights but internally permit horizontal and vertical rotation of the lamp's light beam.

    Recessed Accent Fixtures

  • 69

    allow for flexibility in lamps types and ease of relocation using a single power source.

    Track Lighting Systems

  • 70

    are any type of asymmetric luminaire that is intended to flatly light the wall from the ceiling down to the floor.

    Wallwashers

  • 71

    downlights with a kicker reflector to push up the wall.

    Downlight Wallwashers

  • 72

    - resemble downlights but use a cut cone and angled prismatic lens to spread the light to a point source.

    Recessed Lensed Wallwashers

  • 73

    throw light unto an adjacent wall using a sophisticated reflector system.

    Surface and Semi-Recessed Lens and Open Wallwashers

  • 74

    at the ceiling, they provide a continuous line of fixtures parallel with the illuminated wall.

    Linear or Continuous Recessed Wallwasher

  • 75

    is a technique that places the light source very close to the wall accentuating a textured surface.

    Wall Gazing

  • 76

    use a plastic lens to refract light and distribute it within the desired area below.

    Lensed Troffers

  • 77

    use parabolically shaped aluminum or plastic louvers to shield the lamp for improved visual comfort.

    Parabolic Troffers

  • 78

    are open, and light from fluorescent lamps is bounced off the interior box of the troffer.

    Recessed Indirect Troffers

  • 79

    combine the efficiency of a lensed troffer with the aesthetic quality of the indirect basket troffer.

    High Efficiency Troffers

  • 80

    are fluorescent luminaires having indirect, semi-direct, and direct-indirect lighting distribution: they are designed to illuminate offices and other more finished spaces.

    Linear Lighting Systems

  • 81

    Because the luminaires can be obtained in varying lengths and assembled into patters, they are called.

    Linear Systems

  • 82

    provide uplighting onto a ceiling plane.

    Indirect Cove Fixtures

  • 83

    contain a reflector that pushes the light out into the space.

    Asymmetric Fluorescent Cove Fixtures

  • 84

    vary in beam spread, size and wattage and can be used to illuminate a whole ceiling or simply provide a glow.

    Adjustable LED Cove Fixtures

  • 85

    are very small profile LED strips that typically contain a tape backing.

    LED “Tape” Lights

  • 86

    are specially designed to illuminate a desk area while minimizing veiling reflections.

    Task Lights

  • 87

    is the jewelry of architecture and, in many building types, plays a significant role in building style, period, or motif.

    Decorative Lighting

  • 88

    are ornate luminaires generally consisting of many small incandescent lamps that simulate the effect of candle flames.

    Chandeliers

  • 89

    are also ceiling-hung decorative fixtures.

    Pendants

  • 90

    is used for hanging luminaires less formal than chandeliers that are used in offices, restaurants, and many other places.

    Pendant

  • 91

    are similar to pendants but mount closely to the ceiling to allow use in most rooms with conventional ceiling heights.

    Close-to-Ceiling Luminaires

  • 92

    are wall-mounted luminaires and are often decorative.

    Sconces

  • 93

    are portable luminaires.

    Table and Floor Lamps

  • 94

    are floor lamps designed specifically for uplighting.

    Torchieres

  • 95

    are used for bath vanity and mirror areas.

    Vanity Lights

  • 96

    is a control device that turns lights on and off.

    Switch

  • 97

    The two most common switches.

    Toggle and Decora (Paddle)

  • 98

    is a switch that turns lights off automatically after a certain period.

    Timer Switch

  • 99

    are automatic switches that turn lights on when motion is detected and leave them on until some designated time after the last motion occurs.

    Occupational Sensors

  • 100

    are control devices that vary the light level and power to lights.

    Dimmers