IEC YEAR 4 FINAL PREP QUESTIONS AND COMPLETE SOLUTIONS 2024/2025
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Course
IEC
Institution
IEC
terminating __ cable is more dificult.
copper
fiber optic - Correct Answer fiber optic
Cat3, 5e and 6 UTP cables used for __ gernerally contain solid conductors
a. patch cords
b. local area networks - Correct Answer local area networks
audio systems can utilize __ cables
a. CMR
b.CM...
IEC YEAR 4 FINAL PREP QUESTIONS
AND COMPLETE SOLUTIONS
2024/2025
terminating __ cable is more dificult.
copper
fiber optic - Correct Answer fiber optic
Cat3, 5e and 6 UTP cables used for __ gernerally contain solid conductors
a. patch cords
b. local area networks - Correct Answer local area networks
audio systems can utilize __ cables
a. CMR
b.CMG
c.CMP
D. any of these - Correct Answer any of these
for Voice/Data/Video network projects the electrical contractor should
a. understand his responsibilities for a successful completion of the project
b. determine if the work is to be performed under his contruction permit.
c. determine if he is to install and terminate the cabling
d. anll of these - Correct Answer all of these
the maximum length limitation for RG-6 cable is __ feet - Correct Answer 750
__ optical fiber cables contain optical fibers and current carrying electrical conductors - Correct Answer
composite
,CATV coax cable is constructed with a _ shield - Correct Answer aluminum
for a coaxial cable the __ serves as a conductor - Correct Answer both center conductor and shielding
the pairs in CAT _ UTP cables have the least amount of twist - Correct Answer 3
from the head-end of a CCTV system _ - Correct Answer sperate cables are installed to each camera
listed communications cables installed in risers shall be _ - Correct Answer either encased in metal
raceway or located in a fireproof shaft having firestops at each floor
cat _ UTP cables are primarily used for analog telephone systems - Correct Answer 3 only
digital telephone networks inside a building utilize _ to maintain connection betweeen each telephone. -
Correct Answer UTP cable
_ shall not be denied due to an accumulation of network powered broadband communication cables. -
Correct Answer access to electrical equipment
if the maximum permitted tension is exceeded when installing UTP cable, the performance can be
affected due to _ - Correct Answer increased impedance, crosstalk, and attenuation
coaxial cable shall be permitted to deliver power to equipment that is direclt assoiciated with the radio
frequency distribution system if the voltage is not over _ volts and of the current is supplied by a
transformer or other device that has power limiting characteristics - Correct Answer 60 volts
the minimum bending radius for fiber optic cable is _ inches - Correct Answer according to manufacturer
specs
CATV coax cable is terminated with type _ connectors - Correct Answer F connectors
,typical VDV networks include those provided for _ systems - Correct Answer computer, video, audio,
telephone, and CATV
residential audio systems generally utilize _ ohm speakers - Correct Answer 8 ohm
an audio system network can be utilized to provide _ - Correct Answer paging/ emergency notification/
background music/ any of these
a _ system is used for serveillance and or recorded documentation - Correct Answer CCTV
a computer network can be _ - Correct Answer either wireless or hardwired
when used for a buisness facility's computer network the MDF may _ - Correct Answer any of these !
contain the client servers
be primary connection point for the internet provider
be connected to an IDF for large systems
a CATV netweork may utilize a head-end to provide pre-recorded information. this information can be
sent over a specific channel of the MATV system _ are typical applications for an MATV system - Correct
Answer all of these
large hotels
dorms
inis
components of a basic network include _ - Correct Answer all of these :
a public provider
devices
cable
, a head-end
the maximum length limitation for RG-11 cable is _ feet - Correct Answer 1000
a commonly used type of coaxial cable used for video applications is _ - Correct Answer all of these :
RG6/U
RG59/U
RG11/U
when installing coaxial cable the tesion applied when pulling can not exceed _ pounds - Correct Answer
90
CCTV coax cable is constructed with a _ shield - Correct Answer copper
the construction of coaxial cable serves to prevent - Correct Answer electromagnetic interference
because it provides less signal loss, quad shield coaxial xable is used for _ tv signals - Correct Answer
digital
when installing coaxial cable _ ends shall be labeled - Correct Answer both
the maximum length limitation for RG-59 cable is _ feet - Correct Answer 500
when installing utp cable the tension applied when pulling can not exceed _ pounds - Correct Answer 25
when terminating utp cables the length of the wire to be untwisted for each pair is _ - Correct Answer
not to exceed 1/2 inches
the wire colots used in 4 pair utp cables are_ - Correct Answer blue oragne green and brown
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