Low Voltage Practice Test 2 Exam

Low Voltage Practice Test ll ll ll


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1. Class
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circuit conductors shall be installed in rigid metal conduit
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a. in hoistways
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b. in enclosures
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c. under carpets ll


d. in one and two family dwellings: a. in hoistways
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Article 725.136(H)
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2. Conductors for 24V lighting systems that are extended through a wall ll ll ll ll ll ll ll ll ll ll


are supplied by
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a. Class 1 power sources ll ll ll


b. Class 2 power sources ll ll ll


c. Class 3 power sources ll ll ll


d. PLTC power sources: b. Class 2 power sources
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Article 411.5(A)(2)
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3. Network-powered broadband communications cables and Class 1 ll ll ll ll ll ll


cables are
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a. Permitted in the same cable tray ll ll ll ll ll


b. Permitted in the same cable tray with a permanent barrier
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c. Not permitted in the same cable tray
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d. band c: d. band c ll ll l ll




Article 830.133(A)(1)(E)
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4. Optical fiber cables shall be permitted to be installed in the
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following raceways
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a. Any raceway recognized in Ch 3
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b. Communications raceways ll


c. Innerducts for optical fiber cables ll ll ll ll


d. all of these: d. all of these
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Article 770.110 (A), (1), (2) and (3)
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5. Uninterruptible power supplies in information technology rooms shall have ll ll ll ll ll ll ll ll




a. an approved means of disconnecting the output circuits
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b. an approved means of disconnecting the supply power
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c. an approved
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ll of disconnecting the battery from its load
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d. all of these: d. all of these
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Article 645.10 and Article 645.11
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6. All conductors of Class 1 remote-control circuits for safety-control
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equip- ment be installed in rigid metal conduit
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a. where the circuit is installed in proximity to electric power and light circuits
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b. where damage to the circuit would cause a hazard
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c. where the circuit exceeds 600V ll ll ll ll


d. where the circuit is installed in a concealed space: b. where damage to
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the circuit would cause a hazard
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Article 725.31(B) ll


7. The accessible portion of abandoned fire alarm cable shall be removed
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a. true
b. true if it is concealed ll ll ll ll


c. false
d. false if it is not tagged for future use: a. true
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Article 760.25 ll


8. Audio systems near swimming pools ll ll ll ll




a. shall use class 1 wiring methods
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b. shall be isolated ll ll


c. shall not be placed closer than 5 ft
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d. shall not be permitted: c. shall not be placed closer than 5 ft
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Article 640.10(A) ll


9. Indoor antenna and lead-in conductors for television receiving
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equipment shall be separated from electric power,light and Class 1 circuit
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conductors by at least
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a. 2 in ll


b. 12 in ll


c. 18 in ll


d. 6 ft: a. 2 in
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