ee q2
問題一覧
1
________ is also referred to as thinnet.
thin coaxial cable
2
The most common type of connector used with coaxial cables is the ________ connector.
Bayonet-Neil Concelman
3
Over long distances, an ________ is needed to boost the light signal.
optical regenerator
4
________ is the operation of wireless devices or systems in homes and offices, and in particular, equipment connected to the Internet by the use of specialized modems.
Fixed wireless
5
Other systems operate in ________ mode, where the system can function when the source and destination are not directly visible to each other.
diffuse
6
________ transmission capabilities are also used in buildings and are replacing the need for hard-wired direct connections
Wireless
7
The ________ extends from the work area (workstation) outlet to the telecommunications closet and consists of horizontal cabling, telecommunications outlet, table terminations, and cross-connections.
Horizontal cabling system
8
In design and layout of communication networks, the term________ describes the configuration of a network, including its nodes, connecting cables and equipment.
topology
9
A ________ is receptacle that is a specific place for physically connecting a device or piece of equipment to another.
port
10
In a star topology, all workstations (nodes) are connected to a central unit called a ________.
hub
11
Telecommunication systems function when a ________ converts sound waves (e.g., those created when a person speaks into a telephone mouthpiece) or data into signals, which travel along wires or through the air before reaching their destination.
transmitter
12
In telecommunications systems, WAN stands for ________.
Wide Area Network
13
A ________ uses electricity, light (visible and infrared), or radio waves to transmit signals that carry voice and data transmissions.
telecommunication system
14
A network that is wired in the ________ topology connects workstation equipment and devices in a point-to-point serial manner in an unbroken circular configuration.
ring
15
In telecommunications systems, AWG stands for ________.
American Wire Gauge
16
A ________ transmits and receives a light signal that is transmitted through an optical fiber.
fiber optic relay system
17
A ________ is a plastic coating that protects the fiber from damage and moisture.
buffer coating
18
In telecommunications systems, RJ stands for ________.
Registered Jack
19
The ________ is the cabling and pathways outside of the building, including the cables carrying local exchange carrier services (e.g., outside telephone company), Internet service provider services, and private branch exchange telecommunication cable (e.g., private phone network between buildings at a school campus or business park)
interbuilding backbone
20
For some applications, a twisted pair is enclosed in a shield and is known as ________ wiring.
STP
21
________ are long, thin strands of very pure silicon glass or plastic about the diameter of a human hair.________ are long, thin strands of very pure silicon glass or plastic about the diameter of a human hair.
Optical fibers
22
In telecommunications systems, PCS stands for ________.
Personal Communications Service
23
________ connect the backbone cabling entering the telecommunications closet with the terminal equipment in the work area (e.g., computers, data terminals, telephones, and so on).
Horizontal pathways
24
When a ________ intercepts the signals, they are converted back into useful data or sound waves that become distinguishable by the human ear and recognized by brain
receiver
25
A ________ is the cabling, devices, and equipment that integrate the voice, data, video, and electronic management
systems of a building (e.g., safety alarms, security access, energy management and control systems, and so on). Design and installation of it adheres to national and international standards.
structured cabling system
26
The ________ is the space containing workstation (terminal) equipment and components.
work area
27
________ is a type of communication transmission cable consisting of two center conductors surrounded by an insulating spacer, which in turn is surrounded by a tubular outer conductor (usually a braid, foil, or both).
Twin axial cable
28
________ wiring consists of multiple pairs of twisted insulated copper conductors bound in a single sheath.
UTP
29
________ is the popular expression used to describe high-frequency wireless local area network technology.
Wi-Fi
30
A________ is a mounted hardware unit containing an assembly of rows of connecting locations in a communications system, called ports.
patch panel
31
A ________ is a type of jumper cable that is used to create a connection from one port in a patch panel to another port.
patch cord
32
The ________ is the central part of the system that accepts incoming services and distributes services throughout the home.
service center
33
Some systems operate in a ________ mode, which means that there must be a visually unobstructed straight-line path through space between the transmitter (source) and receiver (destination).
line-of-sight
34
In telecommunications systems, EIA stands for ________.
Electronic Industries Association
35
________ is the medium through which voice and data move from one telecommunication device to another.
Telecommunication cabling
36
In telecommunications systems, MAW stands for ________.
Metropolitan Area Network
37
The receiver uses a ______ to detect the light signal, decodes it, and sends an electrical signal to a computer, TV, or telephone.
photocell
38
The ________ is an entrance to the building for both public and private network service cables.
building entrance facility
39
Twin axial cable is refered to as ________.
twinax
40
In telecommunications systems, PBX stands for ________.
Private branch exchange
41
________ wireless transmits data through radio wavelengths. (No acronyn or abbreviation in the answer.)
Radio frequency
42
________ refers to the technology in which communication signals in the form of modulated light beams are transmitted over a glass fiber transmission medium
Fiber optics
43
In telecommunications systems, ANSI stands for ________.
American National Standards Institute
44
In telecommunications systems, TIA stands for ________.
Telecommunications Industry Association
45
Hundreds or thousands of optical fibers are arranged in bundles called ________ .
optical cables
46
The ANSI/TIA/EIA-568-1991 was revised in 1995, and is now referred to as ANSI/TIA/EIA-568-A ________.
Commercial Building Telecommunications Cabling Standard
47
________ refers to the specifications for fiber optic cable carrying Ethernet signals.
10BaseF
48
A ________ is a passageway, and thus a path, for cable to travel when interconnecting devices, components, and equipment in a telecommunication system
pathway
49
A typical ________ is made in a 2 in X 4 in (50 mm X 100 mm) electrical box with horizontal cabling terminating at a connector on the faceplate covering the box.
telecommunications outlet
50
________ is the outer material of the optical fiber surrounding the core that reflects the light back into the core.
Cladding
51
________ is the intensity of sensation resulting from viewing light sources and backgrounds.
Brightness
52
________ are widely used in offices, stores, schools, and other commercial and institutional facilities for general lighting in work and sales areas.
Troffers
53
________ describes the quality of light on a scale of 0 (horrible) to 100 (perfect).
Color Rendering Index
54
________ are ornate luminaires generally consisting of many small incandescent lamps that simulate the effect of candle flames.
Chandeliers
55
________ is a kind of lighting system in which most of the light falls directly to the surface or the spot which is required to be illuminated.
Direct lighting
56
________ are fluorescent luminaires having indirect, semi-indirect, and direct-indirect lighting distribution.
Linear lighting systems
57
________ is an electric lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metalhalides (compounds of metals with bromine or iodine).
Metal-halide lamp
58
________ is that part of electromagnetic radiation spectrum capable of exciting the retina and ultimately producing a visual sensation.
Visible light
59
________ is a king of lighting system which 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
60
In the types of incandescent lamps, what does 'BR' stand for? ________
Bulbous Reflector
61
________ are types of incandescent lamps which contain an internal reflector coating to direct light in one direction.
Reflector lamps
62
________ is any device that includes a lamp holder and the means of electrification and support for that device.
Luminaire
63
________ is the factor related to the cleanliness of the lamp including the room, replacement of lamp after recommended life, etc.
Maintenance factor
64
In the types of incandescent lamps, what does 'PAR' stand for? ________
Parabolic Aluminized Reflector
65
________ is a gas-discharge lamp that uses sodium in an excited state to produce light.
Sodium-vapor lamp
66
________ are specially designed to illuminate a desk area while minimizing veiling reflections.
Task lights
67
________ are wall-mounted luminaires and are oftend ecorative.
Sconces
68
________ are primary rating types vof downlights which are equipped with a 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
69
______ are any type of asymmetric luminaire that is intended to flatly light the wall from the ceiling down to the floor.
Wallwashers
70
_______ is the energy radiated in the form of waves which produces the sensation of vision to the yes .It may be natural light from sun or the artificial light from the means created by human beings.
Light
71
________ is a technique that places the light source very close to the wall accentuating a textured surface.
Wall gazing
72
________ is the ratio of the luminous flux to the power intake.
Efficacy
73
_________ 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
74
________ are primary rating types of downlights used in most commercial applications with a dropped ceiling and no nearby insulation.
Thermally protected luminaires
75
_________ is the ratio of the light absorbed versus the light striking the surface.
Absorptance
76
In the types of incandescent lamps, what does 'ER' stand for? ________
Ellipsoidal Reflector
77
________ is the ratio of the lumens actually received by a particular surface to the total lumens emitted by the luminous source.
Coefficient of utilization
78
________ 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
79
________ are control devices that vary the light level and power to lights.
Dimmers
80
________ is a kind of lighting system which lies between the direct and indirect lighting where in the light is partially received by diffuse reflection and partly direct from the source.
Semi-Indirect Lighting
問題一覧
1
________ is also referred to as thinnet.
thin coaxial cable
2
The most common type of connector used with coaxial cables is the ________ connector.
Bayonet-Neil Concelman
3
Over long distances, an ________ is needed to boost the light signal.
optical regenerator
4
________ is the operation of wireless devices or systems in homes and offices, and in particular, equipment connected to the Internet by the use of specialized modems.
Fixed wireless
5
Other systems operate in ________ mode, where the system can function when the source and destination are not directly visible to each other.
diffuse
6
________ transmission capabilities are also used in buildings and are replacing the need for hard-wired direct connections
Wireless
7
The ________ extends from the work area (workstation) outlet to the telecommunications closet and consists of horizontal cabling, telecommunications outlet, table terminations, and cross-connections.
Horizontal cabling system
8
In design and layout of communication networks, the term________ describes the configuration of a network, including its nodes, connecting cables and equipment.
topology
9
A ________ is receptacle that is a specific place for physically connecting a device or piece of equipment to another.
port
10
In a star topology, all workstations (nodes) are connected to a central unit called a ________.
hub
11
Telecommunication systems function when a ________ converts sound waves (e.g., those created when a person speaks into a telephone mouthpiece) or data into signals, which travel along wires or through the air before reaching their destination.
transmitter
12
In telecommunications systems, WAN stands for ________.
Wide Area Network
13
A ________ uses electricity, light (visible and infrared), or radio waves to transmit signals that carry voice and data transmissions.
telecommunication system
14
A network that is wired in the ________ topology connects workstation equipment and devices in a point-to-point serial manner in an unbroken circular configuration.
ring
15
In telecommunications systems, AWG stands for ________.
American Wire Gauge
16
A ________ transmits and receives a light signal that is transmitted through an optical fiber.
fiber optic relay system
17
A ________ is a plastic coating that protects the fiber from damage and moisture.
buffer coating
18
In telecommunications systems, RJ stands for ________.
Registered Jack
19
The ________ is the cabling and pathways outside of the building, including the cables carrying local exchange carrier services (e.g., outside telephone company), Internet service provider services, and private branch exchange telecommunication cable (e.g., private phone network between buildings at a school campus or business park)
interbuilding backbone
20
For some applications, a twisted pair is enclosed in a shield and is known as ________ wiring.
STP
21
________ are long, thin strands of very pure silicon glass or plastic about the diameter of a human hair.________ are long, thin strands of very pure silicon glass or plastic about the diameter of a human hair.
Optical fibers
22
In telecommunications systems, PCS stands for ________.
Personal Communications Service
23
________ connect the backbone cabling entering the telecommunications closet with the terminal equipment in the work area (e.g., computers, data terminals, telephones, and so on).
Horizontal pathways
24
When a ________ intercepts the signals, they are converted back into useful data or sound waves that become distinguishable by the human ear and recognized by brain
receiver
25
A ________ is the cabling, devices, and equipment that integrate the voice, data, video, and electronic management
systems of a building (e.g., safety alarms, security access, energy management and control systems, and so on). Design and installation of it adheres to national and international standards.
structured cabling system
26
The ________ is the space containing workstation (terminal) equipment and components.
work area
27
________ is a type of communication transmission cable consisting of two center conductors surrounded by an insulating spacer, which in turn is surrounded by a tubular outer conductor (usually a braid, foil, or both).
Twin axial cable
28
________ wiring consists of multiple pairs of twisted insulated copper conductors bound in a single sheath.
UTP
29
________ is the popular expression used to describe high-frequency wireless local area network technology.
Wi-Fi
30
A________ is a mounted hardware unit containing an assembly of rows of connecting locations in a communications system, called ports.
patch panel
31
A ________ is a type of jumper cable that is used to create a connection from one port in a patch panel to another port.
patch cord
32
The ________ is the central part of the system that accepts incoming services and distributes services throughout the home.
service center
33
Some systems operate in a ________ mode, which means that there must be a visually unobstructed straight-line path through space between the transmitter (source) and receiver (destination).
line-of-sight
34
In telecommunications systems, EIA stands for ________.
Electronic Industries Association
35
________ is the medium through which voice and data move from one telecommunication device to another.
Telecommunication cabling
36
In telecommunications systems, MAW stands for ________.
Metropolitan Area Network
37
The receiver uses a ______ to detect the light signal, decodes it, and sends an electrical signal to a computer, TV, or telephone.
photocell
38
The ________ is an entrance to the building for both public and private network service cables.
building entrance facility
39
Twin axial cable is refered to as ________.
twinax
40
In telecommunications systems, PBX stands for ________.
Private branch exchange
41
________ wireless transmits data through radio wavelengths. (No acronyn or abbreviation in the answer.)
Radio frequency
42
________ refers to the technology in which communication signals in the form of modulated light beams are transmitted over a glass fiber transmission medium
Fiber optics
43
In telecommunications systems, ANSI stands for ________.
American National Standards Institute
44
In telecommunications systems, TIA stands for ________.
Telecommunications Industry Association
45
Hundreds or thousands of optical fibers are arranged in bundles called ________ .
optical cables
46
The ANSI/TIA/EIA-568-1991 was revised in 1995, and is now referred to as ANSI/TIA/EIA-568-A ________.
Commercial Building Telecommunications Cabling Standard
47
________ refers to the specifications for fiber optic cable carrying Ethernet signals.
10BaseF
48
A ________ is a passageway, and thus a path, for cable to travel when interconnecting devices, components, and equipment in a telecommunication system
pathway
49
A typical ________ is made in a 2 in X 4 in (50 mm X 100 mm) electrical box with horizontal cabling terminating at a connector on the faceplate covering the box.
telecommunications outlet
50
________ is the outer material of the optical fiber surrounding the core that reflects the light back into the core.
Cladding
51
________ is the intensity of sensation resulting from viewing light sources and backgrounds.
Brightness
52
________ are widely used in offices, stores, schools, and other commercial and institutional facilities for general lighting in work and sales areas.
Troffers
53
________ describes the quality of light on a scale of 0 (horrible) to 100 (perfect).
Color Rendering Index
54
________ are ornate luminaires generally consisting of many small incandescent lamps that simulate the effect of candle flames.
Chandeliers
55
________ is a kind of lighting system in which most of the light falls directly to the surface or the spot which is required to be illuminated.
Direct lighting
56
________ are fluorescent luminaires having indirect, semi-indirect, and direct-indirect lighting distribution.
Linear lighting systems
57
________ is an electric lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metalhalides (compounds of metals with bromine or iodine).
Metal-halide lamp
58
________ is that part of electromagnetic radiation spectrum capable of exciting the retina and ultimately producing a visual sensation.
Visible light
59
________ is a king of lighting system which 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
60
In the types of incandescent lamps, what does 'BR' stand for? ________
Bulbous Reflector
61
________ are types of incandescent lamps which contain an internal reflector coating to direct light in one direction.
Reflector lamps
62
________ is any device that includes a lamp holder and the means of electrification and support for that device.
Luminaire
63
________ is the factor related to the cleanliness of the lamp including the room, replacement of lamp after recommended life, etc.
Maintenance factor
64
In the types of incandescent lamps, what does 'PAR' stand for? ________
Parabolic Aluminized Reflector
65
________ is a gas-discharge lamp that uses sodium in an excited state to produce light.
Sodium-vapor lamp
66
________ are specially designed to illuminate a desk area while minimizing veiling reflections.
Task lights
67
________ are wall-mounted luminaires and are oftend ecorative.
Sconces
68
________ are primary rating types vof downlights which are equipped with a 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
69
______ are any type of asymmetric luminaire that is intended to flatly light the wall from the ceiling down to the floor.
Wallwashers
70
_______ is the energy radiated in the form of waves which produces the sensation of vision to the yes .It may be natural light from sun or the artificial light from the means created by human beings.
Light
71
________ is a technique that places the light source very close to the wall accentuating a textured surface.
Wall gazing
72
________ is the ratio of the luminous flux to the power intake.
Efficacy
73
_________ 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
74
________ are primary rating types of downlights used in most commercial applications with a dropped ceiling and no nearby insulation.
Thermally protected luminaires
75
_________ is the ratio of the light absorbed versus the light striking the surface.
Absorptance
76
In the types of incandescent lamps, what does 'ER' stand for? ________
Ellipsoidal Reflector
77
________ is the ratio of the lumens actually received by a particular surface to the total lumens emitted by the luminous source.
Coefficient of utilization
78
________ 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
79
________ are control devices that vary the light level and power to lights.
Dimmers
80
________ is a kind of lighting system which lies between the direct and indirect lighting where in the light is partially received by diffuse reflection and partly direct from the source.
Semi-Indirect Lighting