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