4355881
Beschreibung
Quiz von eric rinehart, aktualisiert more than 1 year ago
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Erstellt von eric rinehart
vor mehr als 8 Jahre
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Frage 1
Frage
What type of system consists of cables that were installed in an air-handling space prior to mandated use of cables that meet the flame-spread and smoke-index requirements of codes, standards & regulations?
Antworten
-
Grandfathered System
-
Abandoned cable System
-
Riser Cable System
-
Non-Plenum Cable System
Frage 2
Frage
What are the 2 key components of an optical fiber?
Antworten
-
Core & Cladding
-
Core & Acrylate
-
Cladding & Acrylate
-
Core & Buffer
Frage 3
Frage
The [blank_start]F Rating[blank_end] is the amount of time in hours the firestopping system can prevent flames from passing through the system.
Antworten
-
F Rating
-
T Rating
-
L Rating
Frage 4
Frage
This is the establishment of a reference for the electrical power source (AC or DC), electrical equipment or both
Antworten
-
Grounding
-
Bonding
-
Electrode System
-
TMGB
Frage 5
Frage
The [blank_start]L Rating[blank_end] indicates a firestops ability to provide an effective smoke seal.
Antworten
-
L Rating
-
F Rating
-
T Rating
Frage 6
Frage
This provides a quick graphical representation of how a circuit is laid out
Antworten
-
Circuit Layout Record
-
Cutover Plan
-
As-built
Frage 7
Frage
A Consolidation Point (CP) should serve up to 24 work areas?
Antworten
- True
- False
Frage 8
Frage
How many walls of a TR should have fire-retardant plywood?
Antworten
-
2
-
1
-
3
-
4
Frage 9
Frage
Cross-Connect Field Colors: Second-Level Backbone
Antworten
-
Gray
-
Orange
-
White
-
Brown
Frage 10
Frage
All ferrous metal pathways must be bonded at both ends regardless of length when containing a bonding conductor?
Antworten
- True
- False
Frage 11
Frage
This amount of current will cause breathing to become difficult
Antworten
-
2-3mA
-
10mA
-
50-100mA
-
100mA
Frage 12
Frage
Who's responsibility is it to provide safety training for its employees?
Antworten
-
Employee's Organization
-
Employee
-
OHSA
-
Customer
Frage 13
Frage
Widening or spreading out of modes in a light pulse as it progresses along the optical fiber
Antworten
-
Dispersion
-
Core
-
Photons
-
Modal Bandwidth
Frage 14
Frage
This type of cutover is one continuous process until competed
Antworten
-
Flash Cutover
-
Phased Cutover
-
Complete Shutdown
-
Continuous Cutover
Frage 15
Frage
This type of backbone cabling distributes telecommunications services between telecommunications spaces within a single building
Antworten
-
Intrabuilding
-
Interbuilding
-
Fiber Optic
Frage 16
Frage
What is the width of the TMGB
Antworten
-
3.94 inches
-
3.95 inches
-
3.93 inches
-
4 inches
Frage 17
Frage
The ITS installer can substitute products that are not part of the qualified firestop assembly
Antworten
- True
- False
Frage 18
Frage
This firestop is used primarily for large air handling & exhaust vents
Antworten
-
Blankets
-
Spray
-
Pillows
-
Foam
Frage 19
Frage
This type of cutover procedure has portions of the old system transferred to the new system in groups
Antworten
-
Flash Cutover
-
Phased Cutover
-
Staged Cutover
-
Continuous Cutover
Frage 20
Frage
What is the information carrying capacity of a system
Antworten
-
Bandwidth
-
Megabit
-
Megahertz
-
Decibel
Frage 21
Frage
What is the maximum length of FMT
Antworten
-
20 feet
-
10 feet
-
15 feet
-
25 feet
Frage 22
Frage
26 AWG has ______ more attenuation
Antworten
-
50%
-
20%
-
30%
-
40%
Frage 23
Frage
This is the copper conductor that interconnects the TMGB to TGB
Antworten
-
TBB
-
GE
-
TEBC
-
ACEG
Frage 24
Frage
Cross-Connect Field Colors: Network Connections
Antworten
-
Green
-
Blue
-
Purple
-
Yellow
Frage 25
Frage
Who should the ITS installer seek guidance from for minimum safety requirements for safe work & employee health
Antworten
-
AHJ
-
Employer
-
OHSA
-
Safety Director
Frage 26
Frage
What is the recommended maximum value for the bonding resistance between any 2 points where bonding exists
Antworten
-
0.1 Ohms
-
1 Ohm
-
10 Ohms
-
0.01 Ohms
Frage 27
Frage
The refractive index of the fiber core is higher than that of the cladding
Antworten
- True
- False
Frage 28
Frage
This type of backbone consists of cabling that is installed between a MC and IC/HC
Antworten
-
First Level
-
Second Level
-
Interbuilding
-
Fiber Optic
Frage 29
Frage
This is a result from different optical fiber lengths in multimode fiber
Antworten
-
Overfill Launch
-
Modal Dispersion
-
Modal Bandwidth
Frage 30
Frage
This type of protector is used to protect against sneak current
Antworten
-
Primary
-
Secondary
-
Data & Fire Alarm
-
Carbon
Frage 31
Frage
Abandoned cable can become fuel and is a fire hazard
Antworten
- True
- False
Frage 32
Frage
Cross-Connect Field Colors: First Level Backbone
Antworten
-
White
-
Gray
-
Brown
-
Blue
Frage 33
Frage
Why is copper a preferred conductor (select all correct)
Antworten
-
Economical
-
Offers less resitance
-
Readily available
-
Easy to produce
Frage 34
Frage
This type of protector has a reaction time of 3-5ns
Antworten
-
Gas
-
Carbon
-
Solid State
-
Primary
Frage 35
Frage
The results of a __________ will be used to develop the project schedule and the installation job plan
Antworten
-
Site survey
-
Scope of work
-
Specification
Frage 36
Frage
Humans can hear in what frequency range
Antworten
-
20-20,000Hz
-
20-20,000MHz
-
20-2,000Hz
-
20-2,000MHz
Frage 37
Frage
A micrometer is
Antworten
-
1 billionth of a meter
-
1 thousandth of a meter
-
1 millionth of a meter
Frage 38
Frage
The primary responsibility of the ___________ is safeguarding personnel, property and equipment from foreign electrical voltages and current
Antworten
-
ITS Installer
-
Qualified Electrican
Frage 39
Frage
When personnel are relocated into temporary office space during retrofits
Antworten
-
Temporary Space
-
Swing-space Phasing
-
Project Relocation
Frage 40
Frage
When are GFCIs required (select all correct)
Antworten
-
with temporary electrical wiring
-
extension cords
-
in Data Centers
Frage 41
Frage
What is the movement of information in the form of electrical or optical signals from one point to another through a transport medium
Antworten
-
Transmission
-
Signal Transfer
-
Attenuation
-
Propagation Delay
Frage 42
Frage
More deaths result from flames rather than smoke and toxic gases
Antworten
- True
- False
Frage 43
Frage
What does OSHA have the authority to do (select all correct)
Antworten
-
Develop, publish & enforce safety regulations
-
Shut down unsafe job site
-
Levy fines against individuals and companies
-
confiscate tools and equipment
Frage 44
Frage
The [blank_start]T Rating[blank_end] is the amount of time in hours the firestopping system can keep the temperature from rising above a specified point
Antworten
-
T Rating
-
F Rating
-
L Rating
Frage 45
Frage
List 3 distinct, yet interconnected grounding systems (Select all correct)
Antworten
-
AC Grounding Electrode System
-
Equipment Grounding System
-
Telecommunications Bonding Infrastructure
-
Supplemental Ground System
Frage 46
Frage
1 cycle in 1 second = ?
Antworten
-
1Hz
-
100Hz
-
10Hz
-
1MHz
Frage 47
Frage
Which fiber is most common for backbone & horizontal runs within buildings and campus environments
Antworten
-
Multimode
-
Singlemode
-
OM2
-
OM1
Frage 48
Frage
If expanding a TR, what must be done prior to removing the wall with equipment/hardware
Antworten
-
Float the backboard
-
Hang the backboard
-
temporarily support the backboard
Frage 49
Frage
What type of ladder is not allowed to be used by an ITS installer
Antworten
-
Aluminum
-
Wood
-
Extension
-
Fiberglass
Frage 50
Frage
What is the diameter of the cladding in multimode fiber cable
Antworten
-
50um
-
125um
-
62.5um
-
250um
Frage 51
Frage
What is the distance limitation of multimode fiber
Antworten
-
2,000 meters
-
3,000 meters
-
1,000 meters
-
10,000 meters
Frage 52
Frage
If an extension ladder is extended 24ft up, then how far should the base be out
Antworten
-
5ft
-
4ft
-
6ft
-
8ft
Frage 53
Frage
Which transmission method transmits a signal in one direction only
Antworten
-
Simplex
-
Full Duplex
-
Half Duplex
Frage 54
Frage
It is acceptable to use a TE in place of a TR
Antworten
- True
- False
Frage 55
Frage
Which fiber supports wavelengths of 1310nm, 1490nm, 1550nm & 1625nm
Antworten
-
Singlemode
-
Multimode
Frage 56
Frage
What is the minimum size of stub up conduits
Antworten
-
3/4"
-
1/2"
-
1"
-
7/8"
Frage 57
Frage
How many rungs need to overlap when extending an extension ladder
Antworten
-
3
-
2
-
4
-
5
Frage 58
Frage
What is the measure of analog signal strength
Antworten
-
Bit
-
Bel
-
Volt
-
Watt
Frage 59
Frage
How far should an extension ladder extend above a work area
Antworten
-
3ft
-
2ft
-
4ft
-
3m
Frage 60
Frage
This current will trigger ventricular fibrillation, which causes the heart to repeatedly relax and violently clamp shut (usually results in death)
Antworten
-
100mA
-
200mA
-
50mA
-
50-100mA
Frage 61
Frage
One of the primary functions of the ____________ is to house the floor-serving cross-connections and interconnection
Antworten
-
TR
-
ER
-
TE
-
EF
Frage 62
Frage
What is the distance limitation of singlemode fiber
Antworten
-
2,000 meters
-
3,000 meters
-
5,000 meters
-
10,000 meters
Frage 63
Frage
___________ are not dependent on ITS installers
Antworten
-
Customers
-
Employees
-
IT Professionals
Frage 64
Frage
How far must an ITS installer stay away from exposed energized circuits operating at 300-50,000 volts
Antworten
-
10ft
-
12ft
-
6ft
-
8ft
Frage 65
Frage
Which fiber supports wavelengths of 850nm and 1300nm
Antworten
-
Multimode
-
Singlemode
Frage 66
Frage
What the 3 distinct ways in which others perceive and employee (select all correct)
Antworten
-
Body language
-
Tone of voice
-
Choice of words
-
Facial expressions
Frage 67
Frage
Chin straps are not allowed to be used with hardhats
Antworten
- True
- False
Frage 68
Frage
What is the most common fire protection principle
Antworten
-
Compartmentation
-
Suppression
-
Detection
Frage 69
Frage
Which fiber generally uses LED and VCSEL light sources
Antworten
-
Multimode
-
Singlemode
Frage 70
Frage
What is the diameter of the acrylate coating in fiber cable
Antworten
-
50um
-
125um
-
250um
-
100um
Frage 71
Frage
What is the typical lifespan of a hard hat
Antworten
-
5 years
-
1 year
-
3 years
-
2 years
Frage 72
Frage
What is the most common tight buffer diameter
Antworten
-
900um
-
250um
-
3mm
Frage 73
Frage
Tone of voice is ____% of communication perceptions
Antworten
-
7%
-
38%
-
55%
Frage 74
Frage
If using a MUTOA, what is the maximum length of a 24AWG, stranded work area cable if the horizontal cable is 70 meters
Antworten
-
22 meters
-
25 meters
-
5 meters
-
27 meters
Frage 75
Frage
Which method transmits in either direction but in only 1 direction at a time
Antworten
-
Simplex
-
Half duplex
-
Full duplex
Frage 76
Frage
Stickers are allowed to be placed on hard hats
Antworten
- True
- False
Frage 77
Frage
Tight buffer fiber is only installed in multimode fiber
Antworten
- True
- False
Frage 78
Frage
What is the maximum amount of moisture allowed in plywood backboards
Antworten
-
15%
-
20%
-
5%
-
10%
Frage 79
Frage
Which type of fiber requires a furcation kit
Antworten
-
Tight Buffer
-
Multimode
-
Loose Tube
-
Singlemode
Frage 80
Frage
Select all approved eye protection
Antworten
-
Glasses
-
Goggles
-
Full Face Shield
Frage 81
Frage
This type of fiber consists of up to 24 strands bundled together in a single line that is color coded
Antworten
-
Ribbon
-
Air blown
-
Tight buffer
-
Loose tube
Frage 82
Frage
These are to be installed on exposed circuits as near as possible to the point at which the exposed cables enter the bulding
Antworten
-
Primary Protection
-
Secondary Protection
-
Data & Fire Alarm Protector
Frage 83
Frage
This firestop product is intumescent, metal back and used to seal large openings
Antworten
-
sheets
-
putty
-
blankets
-
pads
Frage 84
Frage
This firestop material is a putty that is used to seal the back of outlet boxes
Antworten
-
pads
-
sheets
-
wrap strips
Frage 85
Frage
This firestop material is intumescent used for plastic piping, insulated metal piping or cable bundles
Antworten
-
wrap strips
-
putty
-
caulk
Frage 86
Frage
This firestop material is intumescent but mostly endothermic, soft and pliable. It comes in bars and sticks
Antworten
-
putty
-
pads
-
foams
Frage 87
Frage
This firestop material can be intumescent, endothermic or ablative. It comes in tubes and can up to 2 weeks to to cure. It is used for permanent installations
Antworten
-
caulk
-
putty
-
pillows
Frage 88
Frage
This firestop material is regarded as temporary and requires wire restraints to pass the hose test
Antworten
-
pillows
-
putty
-
caulk
Frage 89
Frage
This firestop material incorporates putty and is referred to as a pipe choke system
Antworten
-
collars
-
putty
-
foam
Frage 90
Frage
This firestop material may be intumescent, endothermic or ablative. It is a 2 part mixing with fast curing time
Antworten
-
foam
-
sheets
-
blankets
Frage 91
Frage
Select the 3 types of centralized fiber cabling implementations
Antworten
-
Pull-through
-
Interconnection
-
Splice in the TR
-
Home Run
Frage 92
Frage
This is a property of an electrical force field built around a conductor that opposes and changes in current flow in a circuit
Antworten
-
Inductance
-
Capacitance
-
Resistance
-
Impedance
Frage 93
Frage
Words are _____% of communication perceptions
Antworten
-
7%
-
38%
-
55%
Frage 94
Frage
Air-blown systems are designed & manufactured for an expected operating lifetime of how many years
Antworten
-
20
-
30
-
10
-
15
Frage 95
Frage
What refers to the amount of information that can be transported over the media
Antworten
-
Megahertz
-
Megabit
-
Decibel
Frage 96
Frage
This current causes the heart the clamp shut and severe burns occur on the skin and hair
Antworten
-
100mA
-
200mA
-
50-100mA
-
50mA
Frage 97
Frage
An ITS installer is allowed to leave a personnel lift with a safety belt with a non-locking keeper
Antworten
- True
- False
Frage 98
Frage
Increasing the length of fiber or wavelength of the light source will decrease bandwidth
Antworten
- True
- False
Frage 99
Frage
Open top cable supports are typically intended to support how many cables
Antworten
-
50
-
20
-
30
-
40
Frage 100
Frage
Cross-Connect Field Colors: Miscellaneous
Antworten
-
Yellow
-
Blue
-
Purple
-
Green
Frage 101
Frage
What is the basic unit of inductance
Antworten
-
Henry
-
Watt
-
Farad
-
Ohm
Frage 102
Frage
There is no mandatory standard to identify the color coding for fiber
Antworten
- True
- False
Frage 103
Frage
This firestop material is used in situations where a cable tray containing critical power or data cables must remain in operation during a fire
Antworten
-
Blankets
-
Sprays
-
Pillows
-
Putties
Frage 104
Frage
According to standards, horizontal fiber cable is normally ____________
Antworten
-
Multimode
-
Singlemode
-
Tight buffer
-
Loose tube
Frage 105
Frage
What is the minimum bend radius of a fiber cable, with up to 4 strands, during installation
Antworten
-
1 inch
-
2 inch
-
4 x diameter of cable
-
10 x diameter of cable
Frage 106
Frage
What is the minimum bend radius of a fiber cable, with up to 4 strands, at rest
Antworten
-
1 inch
-
2 inch
-
4 x diameter of cable
-
10 x diameter of cable
Frage 107
Frage
What is the minimum bend radius of interbuilding fiber during installation
Antworten
-
10 x diameter of cable
-
15 x diameter of cable
-
20 x diameter of cable
Frage 108
Frage
What is the minimum bend radius of a fiber backbone cable at rest
Antworten
-
15 x diameter
-
10 x diameter
-
20 x diameter
Frage 109
Frage
What is the minimum bend radius of an intrabuilding fiber during installation
Antworten
-
10 x diameter
-
15 x diameter
-
20 x diameter
Frage 110
Frage
Which test instruments can be used to test fiber while it is still on the reel (select all correct)
Antworten
-
OLTS
-
VFL
-
OTDR
Frage 111
Frage
Which fiber test instrument does not require access to both ends of the fiber while testing on the reel
Antworten
-
VFL
-
OTDR
-
OLTS
Frage 112
Frage
Bonding conductors are designed to intentionally carry AC ground fault current or lightning strike current
Antworten
- True
- False
Frage 113
Frage
What is the maximum length for horizontal fiber runs
Antworten
-
90 meters
-
100 meters
-
2,000 meters
-
3,000 meters
Frage 114
Frage
Lift belts give the user added strength
Antworten
- True
- False
Frage 115
Frage
This administration addresses infrastructure with multiple buildings at a single site
Antworten
-
Class 1
-
Class 2
-
Class 3
-
Class 4
Frage 116
Frage
It is recommended to order innerduct without a pull sting preisntalled
Antworten
- True
- False
Frage 117
Frage
Select all approved types of hearing protection
Antworten
-
Aural
-
Foam Earplugs (disposable)
-
Rubber Earplugs (reusable)
Frage 118
Frage
This type of protector has a reaction time of 15ns or more
Antworten
-
Gas tubes
-
Solid state
-
Carbon blocks
Frage 119
Frage
This is the property of conductors that allows storage of electric charges when potential differences exist between conductors
Antworten
-
Capacitance
-
Inductance
-
Resistance
-
Impedance
Frage 120
Frage
Body language is ______% of communication perceptions
Antworten
-
7%
-
38%
-
55%
Frage 121
Frage
This firestop material will develop a hard char that resists erosion from fire and flames
Antworten
-
Ablative
-
Intumescent
-
Endothermic
Frage 122
Frage
This administration addresses infrastructure with one or more telecommunication spaces in a single building
Antworten
-
Class 1
-
Class 2
-
Class 3
-
Class 4
Frage 123
Frage
Fall protection is required at which height
Antworten
-
4ft
-
5ft
-
3ft
-
6ft
Frage 124
Frage
Which is the required physical topology for SCS
Antworten
-
Star
-
Ring
-
Bus
Frage 125
Frage
(2) 1.5 inch and (1) 1 inch innerducts are recommended to be placed inside what size conduit
Antworten
-
3 inch
-
2 inch
-
4 inch
-
6 inch
Frage 126
Frage
Cross-Connect Field Colors: Horizontal Cable
Antworten
-
Blue
-
Green
-
Yellow
-
Orange
Frage 127
Frage
A PFAS (personal fall arrest system) includes a full body harness, a shock absorbing lanyard & secure anchorage point capable of supporting ______ pounds
Antworten
-
2,500lbs
-
5,000lbs
-
3,000lbs
-
1,000lbs
Frage 128
Frage
The service loop is used to relieve all tension of the fiber cable
Antworten
- True
- False
Frage 129
Frage
What is allowed to be used to mend torn clothing
Antworten
-
duct tape
-
electrical tape
-
tie wraps
Frage 130
Frage
How much horizontal fiber should be left at the work area
Antworten
-
1 meter
-
2 feet
-
18 inches
-
12 inches
Frage 131
Frage
How much fiber slack should be left in a cabinet within a TR
Antworten
-
10 meters
-
3 feet
-
1 meter
-
3 meters
Frage 132
Frage
Capacitance is measured in ________
Antworten
-
Farads
-
Henry
-
Ohm
-
Watts
Frage 133
Frage
Plywood backboards should be mounted at _____ AFF
Antworten
-
8 inches
-
12 inches
-
6 inches
-
18 inches
Frage 134
Frage
This current will produce a tingling of the skin
Antworten
-
2-3mA
-
10mA
-
50-100mA
-
50mA
Frage 135
Frage
When blowing fiber, what carries the cable down the tube
Antworten
-
fluid drag
-
air pressure
-
vacuum
Frage 136
Frage
What describes the amount of information a fiber is capable of transporting
Antworten
-
Modal Bandwidth
-
Dispersion
-
Megahertz
Frage 137
Frage
Which method transmits a signal in both directions at the same time
Antworten
-
Full duplex
-
Half duplex
-
Simplex
Frage 138
Frage
What type of entrance pathway preserves the aesthetic appearance of the building and is economical over the life cycle
Antworten
-
Underground
-
Buried
-
Aerial
-
Wireless
Frage 139
Frage
Air blown fiber shall not be used for outside plant
Antworten
- True
- False
Frage 140
Frage
This administration addresses infrastructure with multiple sites or campuses
Antworten
-
Class 1
-
Class 2
-
Class 3
-
Class 4
Frage 141
Frage
This current will produce a painful shock and muscles can't release the contact
Antworten
-
10mA
-
2-3mA
-
50mA
-
100mA
Frage 142
Frage
Which of the following are basic tests to verify each tube prior to blowing fiber (select all correct)
Antworten
-
airflow testing
-
pressure testing
-
continuity testing
Frage 143
Frage
This is required on every 3rd floor and top floor of a multi-story building that has multiple ER/TRs on the same floor
Antworten
-
GE
-
TGB
-
TEBC
-
GEC
Frage 144
Frage
This serves as the dedicated extension of the building AC grounding electrode system of the telecommunications infrastructure
Antworten
-
TMGB
-
TGB
-
GEC
-
ACEG
Frage 145
Frage
What is the typical air pressure when blowing fiber
Antworten
-
150-220psi
-
150-200psi
-
100-150psi
-
200-225psi
Frage 146
Frage
Which splicing method has a low consumable cost
Antworten
-
fusion
-
mechanical
Frage 147
Frage
What is the total opposition to current flow
Antworten
-
Impedance
-
Capacitance
-
Resistance
-
Inductance
Frage 148
Frage
What is the basic unit of digital information
Antworten
-
bit
-
megabit
-
bel
Frage 149
Frage
What type of entrance pathway preserves the aesthetic appearance of the building but is inflexible for future service changes
Antworten
-
tunnel
-
underground
-
buried
-
aerial
Frage 150
Frage
What diameter of toggle bolts should be used when mounting a backboard
Antworten
-
1/4"
-
3/8"
-
1/2"
-
5/8"
Frage 151
Frage
Open top cable supports should be installed to maintain a minimum of _____ inches above ceilings
Antworten
-
2
-
3
-
4
-
5
Frage 152
Frage
Reflectance may be a concern with which type of splicing method
Antworten
-
fusion
-
mechanical
Frage 153
Frage
This administration addresses the needs of premises served by a single ER (the only telecommunication space)
Antworten
-
Class 1
-
Class 2
-
Class 3
-
Class 4
Frage 154
Frage
How much fiber typically should be in a splice tray
Antworten
-
3 feet
-
1-2 meters
-
1-3 meters
-
1 meter
Frage 155
Antworten
-
fuse time too long
-
autofeed too low
-
autofeed too high
-
fuse current too hot
Frage 156
Antworten
-
fuse current too hot
-
autofeed too high
-
good splice
-
autofeed too low
Frage 157
Antworten
-
autofeed too high
-
good splice
-
fuse time too long
-
fuse current too hot
Frage 158
Antworten
-
autofeed too low
-
fuse time too long
-
autofeed too high
-
good splice
Frage 159
Antworten
-
good splice
-
autofeed too high
-
autofeed too low
-
fuse time too long
Frage 160
Frage
What is the maximum splice loss regardless of the methodology
Antworten
-
.3dB
-
.1dB
-
.75dB
-
1.5dB
Frage 161
Frage
What is the curing cycle for heat cured connectors
Antworten
-
20 minutes
-
10 minutes
-
5 minutes
-
15 minutes
Frage 162
Frage
24AWG stranded cable ha _______ more attenuation
Antworten
-
30%
-
20%
-
50%
-
40%
Frage 163
Frage
Adhesive hardening when terminating anaerobic connectors takes how long
Antworten
-
10-20 seconds
-
15 seconds
-
1 minute
-
5-10 seconds
Frage 164
Frage
True power is measured in ______
Antworten
-
Watts
-
Volts
-
Amps
-
Decibels
Frage 165
Frage
What is the size of the primary acrylate
Antworten
-
125um
-
250um
-
245um
-
5um
Frage 166
Frage
Measure of signal loss resulting from the insertion of component, link or channel between transmitter and receiver (often referred to as attenuation)
Antworten
-
Crosstalk
-
Return loss
-
Delay skew
-
Insertion loss
Frage 167
Frage
How far should the toggle bolts be spaced when mounting a backboard
Antworten
-
1ft
-
2ft
-
18 inches
-
3ft
Frage 168
Frage
All electrical activity produces electric & magnetic fields
Antworten
- True
- False
Frage 169
Frage
What quantifies the bandwidth of a cabling system in a frequency range
Antworten
-
megahertz
-
megabit
-
decibel
Frage 170
Frage
What is the #1 reason for troubleshooting in optical networks
Antworten
-
contamination
-
core alignment
-
poor terminations
Frage 171
Frage
What device converts a digital signal into 2 distinctive analog frequencies
Antworten
-
modem
-
codec
Frage 172
Frage
What is the power range for microscopes to view the end face of an optical fiber connector
Antworten
-
100x-800x
-
100x-200x
-
200x-400x
Frage 173
Frage
What is the ratio expressed in decibels of the power of the outgoing signal to the power of the reflected signal
Antworten
-
Return loss
-
Insertion loss
-
Crosstalk
-
Delay skew
Frage 174
Frage
This is the grounding connection point for telecommunications systems and equipment in the area served by an ER or TR
Antworten
-
GEC
-
TGB
-
TMGB
-
BCT
Frage 175
Frage
The inside bend radius shall be _______ times the ID for conduits 2 inches or less
Antworten
-
6
-
10
-
4
-
8
Frage 176
Frage
This tool is used to inspect the radius of curvature, offset of polish & optical fiber height
Antworten
-
VFL
-
Interferometer
-
OLTS
-
OTDR
Frage 177
Frage
This is the copper conductor that interconnects the TMGB to TGB
Antworten
-
TBB
-
GEC
-
GE
-
ACEG
Frage 178
Frage
This is the unwanted transfer of a signal's EM energy from one or more circuits to other circuits
Antworten
-
Crosstalk
-
Delay Skew
-
Return Loss
-
Insertion Loss
Frage 179
Frage
This tool can determine end-to-end attenuation & distance to a point of high attenuation during pre-installation testing
Antworten
-
OTDR
-
OLTS
-
VFL
-
Interferometer
Frage 180
Frage
Test equipment uses what to determine the length of a cable
Antworten
-
Crosstalk
-
NVP (nominal velocity of propagation)
-
Insertion Loss
-
Propagation Delay
Frage 181
Frage
How far does the conductor need to extend beyond the connector if using a set-screw, pass-through style lug
Antworten
-
1/8"
-
1/4"
-
1/2"
-
3/8"
Frage 182
Frage
Cross-Connect Field Colors: Common Equipment
Antworten
-
Purple
-
Green
-
Yellow
-
Red
Frage 183
Frage
What device converts analog data, from a video device, to a digital signal
Antworten
-
modem
-
codec
Frage 184
Frage
The inside bend radius shall be ___ times the ID for conduits greater than 2 inches
Antworten
-
10
-
6
-
4
-
8
Frage 185
Frage
Acceptance testing of optical fiber is most often performed with which tester
Antworten
-
VFL
-
OLTS
-
OTDR
-
Interferometer
Frage 186
Frage
What are unsafe oxygen levels
Antworten
-
below 19.5% and above 23.5%
-
below 20.5% and above 25.5%
-
below 15.5% and above 20.5%
Frage 187
Frage
Time for a signal to be transmitted from one end to the other
Antworten
-
Crosstalk
-
Delay Skew
-
Propagation Delay
-
Insertion Loss
Frage 188
Frage
Which entrance pathway has the lowest cabling installation cost
Antworten
-
Aerial
-
Underground
-
Buried
-
Wireless
Frage 189
Frage
For singlemode fiber, out-of-band testing may be accomplished at the _____ nm window
Antworten
-
1625
-
1550
-
1310
-
1490
Frage 190
Frage
Difference in propagation delay between slowest & fastest pairs within same cable sheath
Antworten
-
delay skew
-
crosstalk
-
insertion loss
-
return loss
Frage 191
Frage
What is the worst acceptable loss for a mated pair
Antworten
-
.75dB
-
.5dB
-
.3dB
-
1.0dB
Frage 192
Frage
95% of mated pairs shall be better than ____dB loss
Antworten
-
.75dB
-
.5dB
-
.3dB
Frage 193
Frage
This type of protector has a reaction time of 10-15 ns
Antworten
-
Gas
-
Carbon
-
Solid state
-
Fire & data
Frage 194
Frage
There is currently no maximum bandwidth for singlemode optical fiber
Antworten
- True
- False
Frage 195
Frage
This firestop material expands when exposed to fire or heat
Antworten
-
intumescent
-
ablative
-
endothermic
Frage 196
Frage
This backbone cable distributes telecommunications services between buildings
Antworten
-
interbuilding
-
intrabuilding
Frage 197
Frage
Cross-Connect Field Colors: Demarcation Point
Antworten
-
Orange
-
Brown
-
White
-
Red
Frage 198
Frage
What is the maximum amount of exposure between the insulation and the bonding connector
Antworten
-
1/8"
-
1/2"
-
1/4"
-
3/8"
Frage 199
Frage
What can be used to neutralize small acid spills
Antworten
-
sodium bicarbonate
-
water
-
milk
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