NCC PRACTICE TEST 8
GUIDE QUESTIONS AND
CORRECT ANSWERS
GRADED A+ 2025-2026
What color is printed on the labels of standard interrupting capacity circuit breakers? -
ANS-Black
Which of the following is defined by UL as a device that trips when a fault current to
ground is 6mA or more? - ANS-Class A
The two most common types of overcurrent protective devices are - ANS-circuit
breakers and fuses
NEC Article 240 covers which of the following? - ANS-Overcurrent protection
Circuit breakers are grouped for identification according to - ANS-given current ranges
Which type of GFCI receptacle offers protection only at the point of installation - ANS-
nonfeed-through
Why are single-element fuses particularly suited for protection of circuit breakers with
low interrupting ratings? - ANS-They have a high speed of response to overcurrents
The organizations that test and list circuit breakers are - ANS-CSA and UL
Cartridge fuses used for branch circuit protection must be marked with the ampere
rating, voltage rating, and the - ANS-interrupting rating
, In residential applications, the available ground fault circuit current is seldom higher
than - ANS-10,000A
The support structure for a horizontal subsystem can consist of J-hooks, ladder
racks/trays, bags, and - ANS-bridal rings
Most straight-through patch cords for Cat 3, 5e, and 6 cable, including commercial
patch cords, are wired to the - ANS-B scheme
Which of the following describes the work area subsystem? - ANS-It consists of the
telecom outlets at the end user location and associated patch cables providing final
connectivity
When routing cable, provide a separation of at least 12" from - ANS-electrical
distribution cables
Telecom innerduct for campus backbone subsystems should be labeled within how
many inches of the termination point? - ANS-12"
Fiber-optic cable that consists of two cables is called - ANS-duplex
Vertical fiber-optic cable should be clamped every - ANS-3' to 6'
Any penetrations through walls or floors required for the riser pathways must be
neatly sleeved and - ANS-firestopped
Which of the following categories of UTP cable has transmission rates of up to 16MHz
and is typically used for Ethernet networks? - ANS-Cat 3
RG6 cables typically use which of the following types of connectors - ANS-F
GUIDE QUESTIONS AND
CORRECT ANSWERS
GRADED A+ 2025-2026
What color is printed on the labels of standard interrupting capacity circuit breakers? -
ANS-Black
Which of the following is defined by UL as a device that trips when a fault current to
ground is 6mA or more? - ANS-Class A
The two most common types of overcurrent protective devices are - ANS-circuit
breakers and fuses
NEC Article 240 covers which of the following? - ANS-Overcurrent protection
Circuit breakers are grouped for identification according to - ANS-given current ranges
Which type of GFCI receptacle offers protection only at the point of installation - ANS-
nonfeed-through
Why are single-element fuses particularly suited for protection of circuit breakers with
low interrupting ratings? - ANS-They have a high speed of response to overcurrents
The organizations that test and list circuit breakers are - ANS-CSA and UL
Cartridge fuses used for branch circuit protection must be marked with the ampere
rating, voltage rating, and the - ANS-interrupting rating
, In residential applications, the available ground fault circuit current is seldom higher
than - ANS-10,000A
The support structure for a horizontal subsystem can consist of J-hooks, ladder
racks/trays, bags, and - ANS-bridal rings
Most straight-through patch cords for Cat 3, 5e, and 6 cable, including commercial
patch cords, are wired to the - ANS-B scheme
Which of the following describes the work area subsystem? - ANS-It consists of the
telecom outlets at the end user location and associated patch cables providing final
connectivity
When routing cable, provide a separation of at least 12" from - ANS-electrical
distribution cables
Telecom innerduct for campus backbone subsystems should be labeled within how
many inches of the termination point? - ANS-12"
Fiber-optic cable that consists of two cables is called - ANS-duplex
Vertical fiber-optic cable should be clamped every - ANS-3' to 6'
Any penetrations through walls or floors required for the riser pathways must be
neatly sleeved and - ANS-firestopped
Which of the following categories of UTP cable has transmission rates of up to 16MHz
and is typically used for Ethernet networks? - ANS-Cat 3
RG6 cables typically use which of the following types of connectors - ANS-F
