Exam (elaborations)
BICSI INSTALLER 1 QUESTIONS AND ANSWERS
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BICSI INSTALLER 1 QUESTIONS AND ANSWERS
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BICSI INSTALLER 1 QUESTIONS AND ANSWERSabandoned cable - Answers- the installed cables and cabling (connectorized cables)
that are not terminated at both ends at a connector or other equipment and not
identified with a tag for future use.
above finished floor (AFF) - Answers- the standard mounting height or vertical distance
for a fixture, ceiling, device, or any other object measured from the finished floor surface
to the center line of the object as the measurement point.
absorption - Answers- a phenomenon causing attenuation of wave signals
(electromagnetic, optical, acoustic) passing through a medium. It occurs when gaseous
molecules or suspended water particles in the atmosphere absorb the signal energy
and convert it into heat due to molecular resonance.
A-C-rated fire-retardant plywood - Answers- The plywood treated with a fire-retardant
that has a smooth-finished A grade side that is exposed for the purpose of mounting
equipment and a rough-finished C grade side.
acceptance plan - Answers- a facilitating agreement between parties (contractor and
client or client representative) that defines satisfactory completion of a project task or
complete project. It may include items on which the client's acceptance is dependent
(delivery of as-built drawings, test certification).
acceptance test - Answers- a test or set of tests performed to demonstrate satisfactory
completion of a predetermined task or group of tasks on which acceptance is
dependent.
Adapter - Answers- A device that enables different sizes or types of plugs to mate with
one another or to fit into a telecommunications outlet/connector; the rearrangement of
leads; large optical fiber cables with numerous wires to fan out into smaller groups of
wires; interconnection between optical fiber cables; and limited voltage or polarity or
direct current (dc) rectification conversion.
Administration - Answers- The methodology defining the documentation requirements
of a cabling system and its containment, the labeling of functional elements, and the
process by which moves, additions, and changes (MAC's) are recorded. (ISO)
Aerial Entrance - Answers- An entrance facility where the telecommunications cables
providing service to a building are placed overhead and the entry point is located above
the ground level
Alien crosstalk - Answers- The unwanted coupling of signals into a balanced twisted-
pair in a given copper cable from one or more balanced twisted-pairs external to the
given cable.
,All-threaded-rod (ATR) - Answers- The straight section of round rod stock that has
threads installed over its entire length.
Alternating current (ac) - Answers- A current flow that alternates periodically (usually
sinusoidal) in magnitude and direction.
American wire guage (AWG) - Answers- A system used to specify wire size. The
greater the wire diameter, the smaller the AWG value.
ampere (A) - Answers- A unit of measure of the rate of electron flow or current in an
electrical conductor. In Ohm's Law, one A is equal to the current produced by one volt
(V) flowing through a resistance of one ohm.
Amplifier - Answers- a device that increases the voltage, current, or power of a signal.
The maximum absolute value reached by a voltage or current waveform.
Analog signal - Answers- A signal in the form of a wave that uses continuous variations
of a physical characteristic over time (voltage amplitude, frequency) to transmit
information.
Anchor - Answers- A device inserted into a structural element or ground and provides a
point of attachment for restraining or securing objects (racks, poles)
Angled Physical Contact (APC) - Answers- An optical fiber connector that is polished to
an angle of 8-10 degrees to reduce the back-reflection of the signal.
Annunciating device - Answers- A unit containing one or more indicator lamps,
alphanumeric displays, or other equivalent means in which each indication provides
status information about a circuit, condition, or location.
Annular space - Answers- The ring of space between a penetrating element such as a
cable, conduit, or other building service and the fire-rated barrier
Antenna - Answers- A conductive structure specifically designed to couple or radiate
electromagnetic energy. In radio frequency (RF) systems, the antenna may be used to
both transmit and receive electromagnetic energy.
Aramid yarn - Answers- A material with exceptional tensile strength and coefficient of
thermal expansion near that of glass used in optical fiber cable to provide support and
addition protection of the buffered fiber strands.
Array connector - Answers- A single ferrule connector that typically contains 6 to 72
obtical fiber strands which are arranged in rows and columns.
,Asbestos - Answers- A fibrous silicate mineral substance used in items such as building
materials, gaskets, fireproof safes, bearings, electrical wiring insulations. Asbestos has
been found to cause cancer.
As-built - Answers- The documentation of measurements, location, and quantities of
material work performed. May be in the form of marked up documents or other work
order forms.
As-built drawing - Answers- Another term for record drawing.
Attenuation - Answers- The decrease in magnitude or the power loss of a signal that
propagates between points, expressed in decibels (dB) as the ratio of received signal to
transmitted signal level.
Attenuation-to-crosstalk ratio, far-end (ACR-F) - Answers- The crosstalk measured at
the opposite end from which the disturbing signal is transmitted normalized by the
attenuation contribution of the optical fiber cable or cabling
Attenuation-to-crosstalk ratio, near-end (ACR-N) - Answers- The ratio obtained by
subtracting insertion loss (attenuation) from near-end crosstalk (NEXT), measured in
decibels (dB). ACR is normally stated as a given frequency.
Access Control System (ACS) - Answers- An interconnected set of controllers
managing the entrance and exit of people through secure areas.
Access Floor - Answers- A system consisting of completely removable and
interchangeable floor panels that are supported on adjustable pedestals or stringers (or
both) to allow entry to the area beneath. Also called a raised floor.
Access provider (AP) - Answers- A company that provides telecommunications signals
by a circuit path or other means between a service provider (SP) and the premises of
the client or user. An AP can also be the SP.
Acrylate - Answers- A coating applied during the optical fiber cable manufacturing
process to provide physical and environmental protection for the optical fiber cable.
Active circuit - Answers- Any circuit connected to an energized system.
Active equipment - Answers- The energized equipment used for receiving or
transmitting analog or digital signals (switches, hubs, routers, private branch
exchanges)
Authority having jurisdiction. (AHJ) - Answers- The building official, electrical inspector,
fire marshal, or other individuals or entities responsible for interpretation and
enforcement of local building and electrical codes.
, Autotest - Answers- A function used by field test instruments to run all the required tests
in a sequential manner without operator intervention.
Backboard - Answers- A panel (wood, metal) used for mounting connecting hardware
and equipment
Backbone - Answers- A facility (pathway, cable, conductors, optical fibers) between any
of the following spaces: telecommunications rooms (TRs), telecommunications
enclosures (TEs), common TRs, floor-serving terminals, entrance facilities (EFs),
equipment rooms (ERs) and common ERs.
Backbone bonding conductor (BBC) - Answers- A telecommunications bonding
connection is used to equalize the potential between secondary bonding busbars
(SBBs) located on the same floor of a structure.
Backbone pathway - Answers- The portion of the pathway system that permits the
placing of main and high-volume communication cables between the entrace location
and all cross-connect points within a building and between buildings.
Backscatter - Answers- The scattering of light into a direction opposite to the original
direction.
Backup power - Answers- Power that creates a temporary uninterrupted power source
in the event that a main power source goes down.
Balanced twisted-pair cable - Answers- A multi-conductor communications cable
composed of two or more copper conductors twisted in a manner designed to cancel
electrical interference.
Balun - Answers- A device used to convert unbalanced to balanced transmission of one
impedance value to another or one media type to another.
Bandwidth - Answers- A range of frequencies available for signaling expressed in hertz
(Hz). It is used to denote the potential information handling capacity of the medium,
device, or system.
Barrier - Answers- A partition, divider, or other separation that provides complete
separation from adjacent compartments.
Beam clamp - Answers- A device attached to a beam or other building structure above
the ceiling or under the floor to hold cable supports or equipment.
Bend radius - Answers- The radius of curvature that a media can bend without signal
degradation. For example, communications cabling exceeding the cables' bend radiius,
determined by the cable's construction and contents, may cause excess attenuation due
to light leaking from the core in a fiber optic or the impedance changing in a copper.
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