Low Voltage Practice Test 2
1. Class 2 and 3 circuit conductors shall be installed in rigid metal conduit
a. in hoistways
b. in enclosures
c. under carpets
d. in one and two family dwellings: a. in hoistways
Article 725.136(H)
2. Conductors for 24V lighting systems that are extended through a wall are
supplied by
a. Class 1 power sources
b. Class 2 power sources
c. Class 3 power sources
d. PLTC power sources: b. Class 2 power sources
Article 411.5(A)(2)
3. Network-powered broadband communications cables and Class 1 cables
are
a. Permitted in the same cable tray
b. Permitted in the same cable tray with a permanent barrier
c. Not permitted in the same cable tray
d. band c: d. band c
Article 830.133(A)(1)(E)
4. Optical fiber cables shall be permitted to be installed in the following
raceways
a. Any raceway recognized in Ch 3
b. Communications raceways
c. Innerducts for optical fiber cables
d. all of these: d. all of these
, Low Voltage Practice Test 2
Article 770.110 (A), (1), (2) and (3)
5. Uninterruptible power supplies in information technology rooms shall
have
a. an approved means of disconnecting the output circuits
b. an approved means of disconnecting the supply power
c. an approved means of disconnecting the battery from its load
d. all of these: d. all of these
Article 645.10 and Article 645.11
6. All conductors of Class 1 remote-control circuits for safety-control
equipment be installed in rigid metal conduit
a. where the circuit is installed in proximity to electric power and light
circuits
b. where damage to the circuit would cause a hazard
c. where the circuit exceeds 600V
d. where the circuit is installed in a concealed space: b. where damage to the
circuit would cause a hazard
Article 725.31(B)
7. The accessible portion of abandoned fire alarm cable shall be removed
a. true
b. true if it is concealed
c. false
d. false if it is not tagged for future use: a. true
Article 760.25
8. Audio systems near swimming pools
a. shall use class 1 wiring methods
b. shall be isolated
1. Class 2 and 3 circuit conductors shall be installed in rigid metal conduit
a. in hoistways
b. in enclosures
c. under carpets
d. in one and two family dwellings: a. in hoistways
Article 725.136(H)
2. Conductors for 24V lighting systems that are extended through a wall are
supplied by
a. Class 1 power sources
b. Class 2 power sources
c. Class 3 power sources
d. PLTC power sources: b. Class 2 power sources
Article 411.5(A)(2)
3. Network-powered broadband communications cables and Class 1 cables
are
a. Permitted in the same cable tray
b. Permitted in the same cable tray with a permanent barrier
c. Not permitted in the same cable tray
d. band c: d. band c
Article 830.133(A)(1)(E)
4. Optical fiber cables shall be permitted to be installed in the following
raceways
a. Any raceway recognized in Ch 3
b. Communications raceways
c. Innerducts for optical fiber cables
d. all of these: d. all of these
, Low Voltage Practice Test 2
Article 770.110 (A), (1), (2) and (3)
5. Uninterruptible power supplies in information technology rooms shall
have
a. an approved means of disconnecting the output circuits
b. an approved means of disconnecting the supply power
c. an approved means of disconnecting the battery from its load
d. all of these: d. all of these
Article 645.10 and Article 645.11
6. All conductors of Class 1 remote-control circuits for safety-control
equipment be installed in rigid metal conduit
a. where the circuit is installed in proximity to electric power and light
circuits
b. where damage to the circuit would cause a hazard
c. where the circuit exceeds 600V
d. where the circuit is installed in a concealed space: b. where damage to the
circuit would cause a hazard
Article 725.31(B)
7. The accessible portion of abandoned fire alarm cable shall be removed
a. true
b. true if it is concealed
c. false
d. false if it is not tagged for future use: a. true
Article 760.25
8. Audio systems near swimming pools
a. shall use class 1 wiring methods
b. shall be isolated
