Low Voltage Practice Test 2 Questions And Answers.

Low Voltage Practice Test 2 Questions And
Answers.



1. Class 2 and 3 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 vi




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




b. Class 2 power sources vi vi vi




c. Class 3 power sources vi vi vi




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 cables vi vi vi vi vi vi vi




are
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a. Permitted in the same cable tray vi vi vi vi vi




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 vi vi vi vi




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




c. Innerducts for optical fiber cables
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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
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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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