Voice Data Video (VDV) Practice Test
The cable voltage ratings on communications wires and cables ____________ be
marked on the cable or on the under carpet communications wire.
a. must
b. must not
c. shall
d. shall not - ANS-d. shall not
REF: [NEC] 800.179
What is the smallest size grounding conductor that can be used for a CATV system?
a. 18 AWG
b. 14 AWG
c. 12 AWG
d. 6 AWG - ANS-b. 14 AWG
REF: [NEC] 820.100(A)(3)
Which type of communication cable would you use between floors?
a. CM
b. CMP
c. CMG
d. CMR - ANS-d. CMR
REF: [NEC] 800.179(B) or 800.154(a)
The "C" in optical fiber cabling marking means __________.
a. compliance
b. conductive
c. composite
d. copper - ANS-b. conductive
REF: [NEC] 770.179
Class 1 Remote Control & Signaling Circuits power output of the source shall
_________.
a. not be required to be limited
,b. be required to be limited
c. be limited to 1000 VA
d. both A & C - ANS-a. not be required to be limited
REF: [NEC] 725.41(B)
Direct buried CATV coaxial cables shall be separated by at least ______ inches from
conductors of any light or power or Class 1 circuit.
a. 6
b. 12
c. 24
d. 36 - ANS-b. 12
REF: [NEC] 820.47(B)
What two types of optical fiber cables are permitted to be installed in listed plenum
raceways (installed as described in 300.22(B) and 300.22(C)?
a. OFC & OFCG
b. OFNR & OFNG
c. OFCP & OFCR
d. OFCP & OFNP - ANS-d. OFCP & OFNP
REF: [NEC] 770.154(A) & 770.113(C)(2)
The total voltage of two 12V batteries installed in parallel would be equal to?
a. 12VAC
b. 24VAC
c. 12VDC
d. 24VDC - ANS-c. 12VDC
The ________ portion of abandoned communications cables shall be removed.
a. accessible
b. viewable
c. surface
d. hidden - ANS-a. accessible
REF: [NEC] 800.25
10. Installation of equipment that is electrically connected to a communications network
shall __________________________.
,a. also include temporary connection of testing equipment for maintenance or repair.
b. be listed as being suitable for electrical connection to a communication network.
c. be listed as being suitable for electrical connection to a communications network
including temporary connection of testing equipment for maintenance orrepair.
d. none of the above - ANS-b. be listed as being suitable for electrical connection to a
communication network.
REF: [NEC] 800.170, 800.18
What type of coaxial cable could be substituted for CATV cable?
a. CMX
b. CATVP
c. FPLP
d. all of the above. - ANS-b. CATVP
REF: [NEC] 820.154(b)
Access to electrical equipment ______________ be denied by an accumulation of
optical fiber cables that _______ removal of panels including suspended ceiling panels.
a. shall not, prevents
b. shall not, impedes
c. shall not, conveys
d. none of the above - ANS-a. shall not, prevents
REF: [NEC] 770.21
Which group of optical fiber cable markings is not correct?
a. OFNP, OFCP, OFNR
b. OFNP, OFNX
c. OFCG, OFC
d. OFNP, OFNR - ANS-b. OFNP, OFNX
REF: [NEC] 770.179
OFNP is _______________.
a. nonconductive optical fiber general purpose cable
b. optical fiber non-plenum cable
c. optical fiber conductive plenum cable
, d. nonconductive optical fiber plenum cable. - ANS-d. nonconductive optical fiber
plenum cable.
REF: [NEC] 770.179
What are the permitted substitutions for a CL3R?
a. CMP, CL3P, CMR
b. CMP, CL3P, CL2P
c. CMP, CL3P, CL2P, CMR, CL3R
d. CL3R, CMG, CM, PLTC - ANS-a. CMP, CL3P, CMR
REF: [NEC] 725.154(A)
CL2 nomenclature stands for?
a. Communication Level 2
b. Class 2
c. Conductive Load x2
d. none of the above - ANS-b. Class 2
REF: [NEC] 725.179
Communication wires and cables shall have a voltage rating of not less than ________.
a. 100 Volts
b. 300 Amps
c. 300 Volts
d. 600 Volts - ANS-c. 300 Volts
REF: [NEC] 800.179
What article would you find information regarding Radio & Television equipment?
a. Article 720
b. Article 725
c. Article 770
d. Article 810 - ANS-d. Article 810
Which optical fiber cable(s) could be substituted for OFNR?
a. OFN, OFNG
b. OFNP
c. OFNG
The cable voltage ratings on communications wires and cables ____________ be
marked on the cable or on the under carpet communications wire.
a. must
b. must not
c. shall
d. shall not - ANS-d. shall not
REF: [NEC] 800.179
What is the smallest size grounding conductor that can be used for a CATV system?
a. 18 AWG
b. 14 AWG
c. 12 AWG
d. 6 AWG - ANS-b. 14 AWG
REF: [NEC] 820.100(A)(3)
Which type of communication cable would you use between floors?
a. CM
b. CMP
c. CMG
d. CMR - ANS-d. CMR
REF: [NEC] 800.179(B) or 800.154(a)
The "C" in optical fiber cabling marking means __________.
a. compliance
b. conductive
c. composite
d. copper - ANS-b. conductive
REF: [NEC] 770.179
Class 1 Remote Control & Signaling Circuits power output of the source shall
_________.
a. not be required to be limited
,b. be required to be limited
c. be limited to 1000 VA
d. both A & C - ANS-a. not be required to be limited
REF: [NEC] 725.41(B)
Direct buried CATV coaxial cables shall be separated by at least ______ inches from
conductors of any light or power or Class 1 circuit.
a. 6
b. 12
c. 24
d. 36 - ANS-b. 12
REF: [NEC] 820.47(B)
What two types of optical fiber cables are permitted to be installed in listed plenum
raceways (installed as described in 300.22(B) and 300.22(C)?
a. OFC & OFCG
b. OFNR & OFNG
c. OFCP & OFCR
d. OFCP & OFNP - ANS-d. OFCP & OFNP
REF: [NEC] 770.154(A) & 770.113(C)(2)
The total voltage of two 12V batteries installed in parallel would be equal to?
a. 12VAC
b. 24VAC
c. 12VDC
d. 24VDC - ANS-c. 12VDC
The ________ portion of abandoned communications cables shall be removed.
a. accessible
b. viewable
c. surface
d. hidden - ANS-a. accessible
REF: [NEC] 800.25
10. Installation of equipment that is electrically connected to a communications network
shall __________________________.
,a. also include temporary connection of testing equipment for maintenance or repair.
b. be listed as being suitable for electrical connection to a communication network.
c. be listed as being suitable for electrical connection to a communications network
including temporary connection of testing equipment for maintenance orrepair.
d. none of the above - ANS-b. be listed as being suitable for electrical connection to a
communication network.
REF: [NEC] 800.170, 800.18
What type of coaxial cable could be substituted for CATV cable?
a. CMX
b. CATVP
c. FPLP
d. all of the above. - ANS-b. CATVP
REF: [NEC] 820.154(b)
Access to electrical equipment ______________ be denied by an accumulation of
optical fiber cables that _______ removal of panels including suspended ceiling panels.
a. shall not, prevents
b. shall not, impedes
c. shall not, conveys
d. none of the above - ANS-a. shall not, prevents
REF: [NEC] 770.21
Which group of optical fiber cable markings is not correct?
a. OFNP, OFCP, OFNR
b. OFNP, OFNX
c. OFCG, OFC
d. OFNP, OFNR - ANS-b. OFNP, OFNX
REF: [NEC] 770.179
OFNP is _______________.
a. nonconductive optical fiber general purpose cable
b. optical fiber non-plenum cable
c. optical fiber conductive plenum cable
, d. nonconductive optical fiber plenum cable. - ANS-d. nonconductive optical fiber
plenum cable.
REF: [NEC] 770.179
What are the permitted substitutions for a CL3R?
a. CMP, CL3P, CMR
b. CMP, CL3P, CL2P
c. CMP, CL3P, CL2P, CMR, CL3R
d. CL3R, CMG, CM, PLTC - ANS-a. CMP, CL3P, CMR
REF: [NEC] 725.154(A)
CL2 nomenclature stands for?
a. Communication Level 2
b. Class 2
c. Conductive Load x2
d. none of the above - ANS-b. Class 2
REF: [NEC] 725.179
Communication wires and cables shall have a voltage rating of not less than ________.
a. 100 Volts
b. 300 Amps
c. 300 Volts
d. 600 Volts - ANS-c. 300 Volts
REF: [NEC] 800.179
What article would you find information regarding Radio & Television equipment?
a. Article 720
b. Article 725
c. Article 770
d. Article 810 - ANS-d. Article 810
Which optical fiber cable(s) could be substituted for OFNR?
a. OFN, OFNG
b. OFNP
c. OFNG
