Low Voltage Practice Test 1
questions with answers
1. All exposed non-current carrying metal parts of an information
technology system
a. shall be bonded to the equipment grounding conductor
b. shall be left alone for IT to fix it
c. shall comply with article 250
d. both a and c
d. both a and c
645.15
Cables used to connect loudspeakers to each other or to an amplifier
a. shall comply with Article 440
b. shall comply with Article 820
c. shall comply with Article 625
d. shall comply with Article 722
d. shall comply with Article 722.
640.21 (B)
Outdoor antennas and lead-in conductors from an antenna to a
building shall
,a. not cross over open conductors of electric light or power circuits
b. be such as to provide a clearance of at least 600 mm (2 ft)
c. be kept well away from all such circuits so as to avoid the
possibility of accidental contact
d. any of the these
d. any of the these
810.13
NPLFA circuit overcurrent protection
a. shall not exceed 7 amperes for 18 AWG conductors
b. shall not exceed 10 amperes for 16 AWG conductors
c. shall not exceed 15 amperes for 14 AWG conductor
d. a and b
d. a and b
760.43
Different intrinsically safe circuit conductors shall be separated from
each other by one of the following means:
a. with insulation that is 0.01 in.
b. a minimum of .25mm
c. with a metal partition of .0359in thick
d. in ducts separated by at least 4 in
, a. with insulation that is 0.01 in.
504.30(B)(2)
Abandoned Supply Circuits and Interconnecting Cables
a. left for IT techs
b. must be marked for future use
c. accessible cables shall be removed unless contained in a raceway
d. all of the these
c. accessible cables shall be removed unless contained in a raceway
645.5(G)
Branch circuits for lighting systems in Article 311 shall be supplied
from a maximum
a. 20-ampere branch circuit
b. 10-ampere branch circuit
c. 25-ampere branch circuit
d. 15-ampere branch circuit
a. 20-ampere branch circuit
411.8
Class 1 circuits shall be identified at terminal and junction locations
a. in a manner that prevents unintentional interference with other
circuits during testing and servicing
questions with answers
1. All exposed non-current carrying metal parts of an information
technology system
a. shall be bonded to the equipment grounding conductor
b. shall be left alone for IT to fix it
c. shall comply with article 250
d. both a and c
d. both a and c
645.15
Cables used to connect loudspeakers to each other or to an amplifier
a. shall comply with Article 440
b. shall comply with Article 820
c. shall comply with Article 625
d. shall comply with Article 722
d. shall comply with Article 722.
640.21 (B)
Outdoor antennas and lead-in conductors from an antenna to a
building shall
,a. not cross over open conductors of electric light or power circuits
b. be such as to provide a clearance of at least 600 mm (2 ft)
c. be kept well away from all such circuits so as to avoid the
possibility of accidental contact
d. any of the these
d. any of the these
810.13
NPLFA circuit overcurrent protection
a. shall not exceed 7 amperes for 18 AWG conductors
b. shall not exceed 10 amperes for 16 AWG conductors
c. shall not exceed 15 amperes for 14 AWG conductor
d. a and b
d. a and b
760.43
Different intrinsically safe circuit conductors shall be separated from
each other by one of the following means:
a. with insulation that is 0.01 in.
b. a minimum of .25mm
c. with a metal partition of .0359in thick
d. in ducts separated by at least 4 in
, a. with insulation that is 0.01 in.
504.30(B)(2)
Abandoned Supply Circuits and Interconnecting Cables
a. left for IT techs
b. must be marked for future use
c. accessible cables shall be removed unless contained in a raceway
d. all of the these
c. accessible cables shall be removed unless contained in a raceway
645.5(G)
Branch circuits for lighting systems in Article 311 shall be supplied
from a maximum
a. 20-ampere branch circuit
b. 10-ampere branch circuit
c. 25-ampere branch circuit
d. 15-ampere branch circuit
a. 20-ampere branch circuit
411.8
Class 1 circuits shall be identified at terminal and junction locations
a. in a manner that prevents unintentional interference with other
circuits during testing and servicing
