Low Voltage Practice Test 1 2026 | Electrical Low-Voltage Exam Questions & Study Guide

Low,./Voltage,./Practice,./Test,./
1
1. 1., . / All,./exposed,./non-
current,./carrying,./metal,./parts,./of,./an,./information,./technolo-gy,./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
2. 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)
3. 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, . / po
ssibility, . / of,./accidental,./contact
d. any,./of,./the,./these:,./d.,./any,./of,./the,./these

810.13
4. 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
,./ ,./

, Low,./Voltage,./Practice,./Test,./
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760.43
5. 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)
6. 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)
7. 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
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
b. shall, . / be, . / installed, . / in, . / a, . / neat, . / and, . / workmanlike, . / manner

,./ ,./

, Low,./Voltage,./Practice,./Test,./
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c. in, . / a, . / manner, . / that's, . / accessible, . / to, . / the, . / public, . / for, . / transparency
d. both,./a,./and,./b:,./d.,./both,./a,./and,./b

724.24,,./724.30
9. Class,./2,./and,./Class,./3,./Power-
Limited,./Circuits,./are,./in,./what,./article,./of,./the,./2023,./NEC?

a. 720
b. 727
c. 724
d. 725:,./d.,./725

725
10. Class,./1,./Power-Limited,./Circuits,./and,./Class,./1,./Power-Limited,./Remote-
Control,./and,./Signaling,./Circuits,./are,./in,./what,./article,./of,./the,./2023,./NEC?

a. 720
b. 727
c. 724
d. 725:,./c.,./724

724
11. As,./appropriate,./for,./the,./services,./provided,,./the,./output,./circuits,./derived,./from,
./a,./network-


powered,./broadband,./communications,./system's,./network,./interface,./unit, . / (NIU)
, . / or, . / from, . / a, . / premises-


powered, . / broadband, . / communications, . / system's, . / network,./terminal,./shall,./co
mply,./with,./the,./requirements,./of,./the,./following:

a. Installations, . / of, . / Class, . / 2, . / and, . / Class, . / 3, . / circuits, . / —
, . / Part, . / II, . / of, . / Article, . / 725, . / and, . / Parts,./I,./and,./II,./of,./Article,./722


b. Installations,./of,./power-limited,./fire,./alarm,./circuits,./—,./Part,./III,./of,./Article,./760
c. Installations,./of,./optical,./fiber,./cables,./—,./Part,./V,./of,./Article,./770
,./ ,./