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Fiber Optics
Fiber Optics
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This is a Fiber Optics study guide for Network Cable Installation(NCI)
Flashcards
104 cards
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Practice quiz
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Questions
104
Answers
1
Intrinsic attenuation is internal while __ is external attenuation
Intertrinsic
Intratrinsic
Extrinsic
Optotrinsic
2
The cable has reached its destination,leave_slack at the cabinet end at each pull box,junk box
10 Meters
10 Feet
12 Feet
20 Meters
3
The electromagnetic spectrum contains
Only Sound Waves
All Types Of Rays
Only Light Waves
Only X Rays
4
Before working with a reel of fiber optic cable you should?
Measure It
Unroll It
Report It To The Boss
Test For Continuity
5
Which of the following must be done when working with fiber optics
Put Batteries In The SPOT
Wear Your Safety Glasses
Open The Crimper
Roll Up Your Sleeves
6
The R on an optical fiber cable label means
Redundant
Riser
Return
Required
7
Plenum Cable
Is The Cheapest Type Of Cable
Cannot Be Run As A Riser
Is Not Designed For Air Handling Spaces
Is The Safest Cable
8
The instructor workstation contains three additional
SPOTs
Termination Trays
Scribes
Cables
9
Light will enter a fiber at any angle up to the angle of ___
Incidence
Acceptance
Reflection
Refraction
10
Bend radius defines the amount of bend that a cable can take before it is damaged
True
False
11
Using scientific notation the number 300000 would be written as
30x10 To The Fifth Power
0.3x10 To The Seventh Power
3x10 To To The Fifth Power
3x10 To The Seventh Power
12
The horizontal cabling
Is The Unused Cable In A Building
Runs Between Floors In A Building
Runs Between Buildings On A College Campus
Runs Between The Telecommunications Room And The Work Area
13
Which of the following does not describe attenuation
Attenuation Is The Loss Of Light Over Distance
Attenuation Is A Positive Number
Attenuation Is A Radio
Attenuation Is Different For Different Wavelengths
14
When calculating a systems loss add the values of the __, connectors and splices
Dynamic Range
Loss Budget
Sources
Cables
15
Connector using pre-terminated fiber already installed,specials tools 2 cleave and secure fiber
Simplex
Crimp And Cleave
Small Form Factor
Thread Lock
16
In fiber cable the cladding diameter stays the same while the core size can be different
False
True
17
Attenuation is
The Angle Of Light
The Reflection Of Light
The Speed Of Light
The Loss Of Light
18
The wavelength of the light from the light source is
1550nm
850nm
1300nm
950nm
19
The scattering of light is when light reflects in different different directions
False
True
20
The type of cable used undersea
OSP
IFC
21
A device that creates light from an electrical input is a
Detector
Source
APD
Medium
22
Single mode optics are used
For Patch Cords
Inside Buildings
In Wind Turbines
For Long Mode Of Light
23
When placing cable in a suspended ceiling, the best approach is to lay cable on top of ceiling
False
True
24
The sharp disposal unit should never be opened
True
False
25
A multi-mode connector is
Yellow
Green
Blue
Beige
26
The type of detector used for multi-mode cable is
Pin Diode
LED
APD
Laser
27
The chief elements of a residential cable installation are
Gateway,Telecom Room,Outlet Cabling,Outlets
Entrance Facility,Auxiliary Disconnect,Outlet
Gateway,Auxiliary Disconnect,Outlet Cabling,Outlet
Backbone,Auxiliary Disconnect,Intermediate Cross Connect
28
An led emits a wide pattern of light while a __ emits a narrow pattern of light
APD
Pin Diode
Laser
Source
29
Attenuation in an optical cable is caused by
Refraction And Reflection
Scattering And Refraction
Absorption And Scattering
Absorption And Reflection
30
Like cabling, raceway are also rater for plenum or risers
True
False
31
Which of the following is not a characteristic of a source used in fiber optics
The Ability To Match The Small Diameter Of A Fiber
The Ability To Turn On And Off Quickly
The Ability To Detect Light At Specific Wavelengths
The Ability To Emit Bright Light At Specific Wavelengths
32
The cabling topology recommended for residential applications is?
Star
Straight Line
Daisy Chain
Token Ring
33
The national electric code must be followed
True
False
34
When using an OTDR a technician is looking for
Expected And Unexpected Results
Unexpected Results And Broken Fibers
Expected Results And Splices
Expected Results And Connectors
35
If you have to breach a firewall, when you are done you must
Protect The Cable With A Special Sheath
Replace The Fire Stopping Materials
Advise The Customer To Repair It
Report It To The Fire Department
36
When pulling fiber optic cable, there should be no more than ___ 90 degree bends
4
1
3
2
37
How many grades of cable are recognized for residential use?
2
1
3
4
38
Conduit should not be more than ______% filled
40
70
10
85
39
The split half troubleshooting method mean
Dividing The Trouble Area Into Successive Halves
None Of The Above
Half The Attenuation Of The System Can Be Attributed
A Testing Method Using Two Cables
40
The light source used in this course with the power meter emits visible light
False
True
41
When testing a splice the maximum allowable attenuation by standard is
3.3dB
0.03dB
0.3dB
3.0dB
42
Optical enclosures store only cables that are in use
True
False
43
A device that changes energy from one form to another is known as a
Transducer
Transductor
Medium
Transmitter
44
When wavelength goes up frequency goes down. This relationship is know as
Proportional
Proportion Reality
Inverse Proportion
Wave Math
45
To find out how far into the cable a problem may be, you can use a
Detector
Light Meter
OTDR
Centralized Link
46
Most of the attenuation in a fiber optic system is caused by
The Dynamic Range
The Source
The Connectors
The Cable
47
The first 6 colors in the optical color code are blue,orange,green,brown,slate, and ____
Violet
Rose
White
Aqua
48
Which of the following provides the most self protection
Long Hair
Short Sleeve Shirts
Long Pants
Shower Shoes
49
What is the dynamic range for a source output of +15dB and a detector sensitivity of -10dB
15dB
25dB
-10dB
5dB
50
In multi-tenant residence the _serves the same purpose as the tele room in commercial buildings
Intermediate Cross-Connect
Floor Serving Terminal
Auxiliary Disconnect
Gateway
51
The type of dispersion that results from light traveling at different angles is
Modal Dispersion
Chromatic Dispersion
Macro Dispersion
Micro Dispersion
52
This type of source is used for long distances
LASER
Pin Diode
LED
APD
53
The _____ is used to perform a connector inspection
Termination Tray
SPOT
Microscope
Adhesive
54
In active splices you can see light and adjust the splice accordingly
True
False
55
In which grade of cable is fiber optic cable classified?
4
2
1
3
56
The index of refraction describes
Visible Light
The Type Of Light
Non-Visible Light
The Speed Of Light In A Substance
57
The type of source used for multi-mode cable is
Pin Diode
LED
Laser
APD
58
Single mode optical fiber uses
One Mode Of Light
Blue Light
Many Rays Of Light
Visible Light
59
Usually a loose tube design
IFC
OSP
60
The testing method B uses ________ test cables
1
3
4
2
61
Never look directly into a light source
True
False
62
An outlet for the cable from each service provider to allow for disconnecting which is called
The Auxiliary Disconnect
The Backbone
The Main Terminal Space
The Gateway
63
Hybrid adapter mates
Same Type Of Connectors
Different Types Of Connectors
ST Connectors
LC Connectors
64
Light is both visible and non-visible
False
True
65
The type of cable used inside of buildings
IFC
OSP
66
Smart home technology is
Number Of Systems For Voice, Video, And Data Functions
Cabling Runs From Distribute Device To Outlet As Horizon Cab
A Terminal Space Serving The Function Of A Telecom Room
Installing Cabling To Accomodate A Higher Level Of Service
67
The type of splice that has the lowest attenuation is
Lock Splice
Mechanical
Fusion
Ultra Splice
68
Which fiber optic splicing method exhibits the following features, no gluing,low cost,canreopen
Fuison
Dynamic Range
Thread Lock
Mechanical
69
A circular metal object used to clean fiber in a figure 8 motion
Polishing Puck
SPOT
Crimper
Scribe
70
This type of splice melts the glass parts
Fusion Splice
Lab Splice
Ultra Splice
Fiber Lock Splice
71
Conductive optical cable cables are designed to conduct electricity
False
True
72
Visible light int the center of an ultra splice indicates
The Splice Is Good
The Splice Is Bad
73
Which value would be correct for recording testing results
3.5dB
99dB
3dB
100dB
74
The angle of incidence is ____ the angle of reflection
Larger Than
The Same As
Incidentally To
Smaller Than
75
The letters OFN on an optical cable mean
Optical Fiber Non-Conductive
Optical Fiber Non-Compiant
Optical Fiber Not Used
Optical Fiber Not Rated
76
The development of fiber optics communications relied on the invention of pure glass and ______
Optoelectronics
Optical Coatings
Networks
Optical Connectors
77
Which of these components of a fiber optic system is a positive component
Sources
Connectos
Pin Diode
Detectors
78
After the cable is installed, you must test each fiber for ______ and ______
Availability and Accessibility
Continuity and Responsibility
Continuity and Attenuation
Attenuation and Demobilization
79
If a cleaved fiber appears like a light house when rolled in your fingers
Cleave It Again
Connect It To The Fault Finder
Proceed With Splicing
Re-Install The Connector
80
The power meter has one operating wavelength
False
True
81
Connectors can be either physical contact or ____
Angled Conductor
Almost Physical Contact
Aligned Physical Contact
Angled Physical Contact
82
Which of these components of a fiber optic system is an active component
Splices
Connectors
Cable
Sources
83
Feature in commercial buildings is called the Entrance facility is called the __in res building
Star Topology
Pathway
Gateway
Cross-Connect
84
A 3dB gain in light brightness is?
Half The Power
Twice The Power
Ten Time The Power
Three Times The Power
85
Multi-Mode cable passes several rays of light while single mode passes
One Ray Of Light
Two Rays Of Light
No Ray Of Light
Three Modes Of Light
86
The ____ is used to perform a continuity check
Adhesive
Microscope
SPOT
Termination
87
For Vertical cable runs, the best approach is to go
From The Top Down
From The Bottom Up
88
Multi-mode cable is either 50um or
42.5
68.2
52.5
62.5
89
Five stages of cable placement in the proper order are
Planning, Pulling, Testing, Prep, Terminating
Testing, Planning, Prep, Pulling, Terminating
Prep, Pulling, Planning, Testing, Terminating
Planning, Prep, Pulling, Terminating, Testing
90
Bundle cable carrying cable needed for telecom services fiber,copper in single sheath is called
Grade 1 Cable
Multimode Cable
Structured Cable
Composite Cable
91
According to the standard cables must be layed out in a _________
Hub
Work Area
Outlet
Cross Connect
92
A fresnel lens is able to focus light using
Reflection
Refraction
Mirrors
Lamda
93
The term MAC means
Move Acceptable Condition
Most Acceptable Condition
Main Acceptable Condition
Move, Add, Change
94
Connector that take less room in installation allowing more fiber to be terminated n same place
Thread-Lock
Crimp And Cleave
Small Form Factor
Simplex
95
Single mode cable has a core diameter of
125um
9um
62.5um
50um
96
Which of the following is an advisory term?
Shall
Must
May
Will
97
Which of the following is caused by poor workmanship
Chromatic Bends
Intrinsic Bends
Micro Bends
Macro Bends
98
The two most popular fiber optic splicing methods are
Extrusion And Mechanical
Thread-Lock And Crimp And Cleave
Fusion And Crimp And Cleave
Fusion And Mechanical
99
__ is when light strikes and bounces off an object
Reflection
Refraction
External Reflection
Internal Reflection
100
If you get hurt in class
Tell Your Teacher
Ignore It
Wait Until Break
Tell Your Partner
101
This type of optical cable has the lowest protection rating
Plenum
Star
Riser
Daisy Chain
102
The student workstation contains two termination trays
Cables
SPOTs
Termination Trays
Scribes
103
The four properties of light are wavelength, speed, movement, and _________
Reflection
Amplitude
Color
Refraction
104
A _______ can be used to find breaks in an optical cable
Ultra Splice
SPOT
Cleaving Puck
Visual Fault Locator