BICSI INSTALLER QUESTIONS WITH
CORRECT ANSWERS 2025-2026
American Wire Gauge (AWG) CORRECT ANSWER
A system used to provide a standard reference for comparing various physical demensions of c
onductor materials. The greater the wire diameter the smaller the AWG value.
Attenuation CORRECT ANSWER
The decrease in magnitude or the power loss of a signal that propagates between two points,
expressed in (dB) as the ratio of received signal to transmitted signal level.
Bandwidth CORRECT ANSWER The information-
carrying capacity of a system. Expressed in the range of analog frequencies (e.g. 0Hz to 1 MHz)
that can be transported or processed by the system.
Capacitance CORRECT ANSWER
A property of conductors that allows storage of electrical charges when potential differences (v
oltages) exist between the conductors. Measured in farads (F).
Crosstalk CORRECT ANSWER
The unwanted transfer of a signal's electromagnetic energy from one or more circuits to other
circuits.
Impedance (Z) CORRECT ANSWER
The total opposition to current flow is called . Measured in ohms.
Inductance CORRECT ANSWER
The property of an electromagnetic field built around a conductor that opposes any changes in
current flow in a circuit, both AC and varying DC. The basic unity of inductance is a Henry (H).
,Insertion loss CORRECT ANSWER
The measure of signal loss resulting from the insertion of a component, or link, or channel, bet
ween a transmitter and receiver (often referred to as attenuation).
Nominal Velocity of Propagation (NVP) CORRECT ANSWER
A ratio of the speed of transmission along a cable relative to the speed of light in a vacuum. It i
s often stated in percentages.
Resistance CORRECT ANSWER
The property of a conductor to resist the flow of electricity through it. Expressed in ohms.
Return Loss CORRECT ANSWER
A ratio of the power of the outgoing signal to the power of the reflected signal. Expressed in d
ecibels.
Analog, Digital CORRECT ANSWER
The information transmitted by an ICT system can originate in tow forms: and
.
Megahertz CORRECT ANSWER
Which of the following quantifies the bandwidth of a cabling system in a frequency range of int
erest?
Full Duplex CORRECT ANSWER
Communication that happens in two directions at the same time.
Bit CORRECT ANSWER The basic unit of digital information
Decibel (dB) CORRECT ANSWER The unit used to express system gain and loss.
, Frequency CORRECT ANSWER The number of cycles a signal is repeated in a period.
Half Duplex CORRECT ANSWER
Communication between two devices whereby transmission takes place in only one direction a
t a time.
Simplex CORRECT ANSWER A one-way mode of communication. Radio
and television broadcasts are simplex mode transmissions.
Series-11 CORRECT ANSWER The type of cable used for video backbone distribution.
100 ohms at 75 Mhz CORRECT ANSWER Balanced twisted-
pair cables have a nominal characteristic impedance of
Delay Skew CORRECT ANSWER
The difference in arrival time between the fastest and the slowest signal in a UTP wire pair. Exp
ressed in nanoseconds and is length dependent.
10 Mhz CORRECT ANSWER For 100 Ohm 4-
[air cables, the maximum allowable propagation delay is measured at MHz for all catego
ries of cabling.
CMUC CORRECT ANSWER
The cable marking used for cables that are permeated for installation between carpet and subfl
oor.
Authority Having Jurisdiction (AHJ) CORRECT ANSWER
The building official, electrical inspector, fire marshal, or other individuals or entities responsibl
e for interpretation and enforcement of local building and electrical codes.
CORRECT ANSWERS 2025-2026
American Wire Gauge (AWG) CORRECT ANSWER
A system used to provide a standard reference for comparing various physical demensions of c
onductor materials. The greater the wire diameter the smaller the AWG value.
Attenuation CORRECT ANSWER
The decrease in magnitude or the power loss of a signal that propagates between two points,
expressed in (dB) as the ratio of received signal to transmitted signal level.
Bandwidth CORRECT ANSWER The information-
carrying capacity of a system. Expressed in the range of analog frequencies (e.g. 0Hz to 1 MHz)
that can be transported or processed by the system.
Capacitance CORRECT ANSWER
A property of conductors that allows storage of electrical charges when potential differences (v
oltages) exist between the conductors. Measured in farads (F).
Crosstalk CORRECT ANSWER
The unwanted transfer of a signal's electromagnetic energy from one or more circuits to other
circuits.
Impedance (Z) CORRECT ANSWER
The total opposition to current flow is called . Measured in ohms.
Inductance CORRECT ANSWER
The property of an electromagnetic field built around a conductor that opposes any changes in
current flow in a circuit, both AC and varying DC. The basic unity of inductance is a Henry (H).
,Insertion loss CORRECT ANSWER
The measure of signal loss resulting from the insertion of a component, or link, or channel, bet
ween a transmitter and receiver (often referred to as attenuation).
Nominal Velocity of Propagation (NVP) CORRECT ANSWER
A ratio of the speed of transmission along a cable relative to the speed of light in a vacuum. It i
s often stated in percentages.
Resistance CORRECT ANSWER
The property of a conductor to resist the flow of electricity through it. Expressed in ohms.
Return Loss CORRECT ANSWER
A ratio of the power of the outgoing signal to the power of the reflected signal. Expressed in d
ecibels.
Analog, Digital CORRECT ANSWER
The information transmitted by an ICT system can originate in tow forms: and
.
Megahertz CORRECT ANSWER
Which of the following quantifies the bandwidth of a cabling system in a frequency range of int
erest?
Full Duplex CORRECT ANSWER
Communication that happens in two directions at the same time.
Bit CORRECT ANSWER The basic unit of digital information
Decibel (dB) CORRECT ANSWER The unit used to express system gain and loss.
, Frequency CORRECT ANSWER The number of cycles a signal is repeated in a period.
Half Duplex CORRECT ANSWER
Communication between two devices whereby transmission takes place in only one direction a
t a time.
Simplex CORRECT ANSWER A one-way mode of communication. Radio
and television broadcasts are simplex mode transmissions.
Series-11 CORRECT ANSWER The type of cable used for video backbone distribution.
100 ohms at 75 Mhz CORRECT ANSWER Balanced twisted-
pair cables have a nominal characteristic impedance of
Delay Skew CORRECT ANSWER
The difference in arrival time between the fastest and the slowest signal in a UTP wire pair. Exp
ressed in nanoseconds and is length dependent.
10 Mhz CORRECT ANSWER For 100 Ohm 4-
[air cables, the maximum allowable propagation delay is measured at MHz for all catego
ries of cabling.
CMUC CORRECT ANSWER
The cable marking used for cables that are permeated for installation between carpet and subfl
oor.
Authority Having Jurisdiction (AHJ) CORRECT ANSWER
The building official, electrical inspector, fire marshal, or other individuals or entities responsibl
e for interpretation and enforcement of local building and electrical codes.
