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LOW VOLTAGE PRACTICE TEST 2 QUESTIONS WITH 100% COMPLETE ANSWERS!!
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LOW VOLTAGE PRACTICE TEST 2 QUESTIONS WITH 100% COMPLETE ANSWERS!!
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Name: Score:50 Multiple choice questions
Term 1 of 50
Cables inside information technology rooms under raised floors
shall be secured in place
listed information technology cables are not required to be secured
only power cables to information technology equipment are required to be secured
only listed fiber optical cables are not required to be secured
Term 2 of 50
Type OFNG, OFN, OFCG, and OFC optical fiber may be used as risers when
a. encased in a metal raceway
b. located in a fireproof shaft
c. a and b
d. none of these
Term 3 of 50
All conductors of Class 1 remote-control circuits for safety-control equipment be installed in rigid
metal conduit
where the circuit is installed in proximity to electric power and light circuits
where damage to the circuit would cause a hazard
where the circuit exceeds 600V
where the circuit is installed in a concealed space
,Term 4 of 50
The location of the primary protector for network powered broadband communications cables
shall be
a. as close to the point of entrance as practicable
b. applied on each external cable on the network side of the network interface unit
c. as close as practicable to the point of attachment to the NIU
d. a and b
Term 5 of 50
Conductors and cables of intrinsically safe circuits
are permitted to run in a raceway or cabletray with other conductors
are not permitted to run in a raceway or cabletray with other conductors
are permitted to run in a raceway or cabletray with other conductors if they are separated
by at least 4 inches
are permitted to run in a raceway or cabletray with other conductors if separated by a
physical barrier
Term 6 of 50
Uninterruptible power supplies in information technology rooms shall have
an approved means of disconnecting the output circuits
an approved means of disconnecting the supply power
an approved means of disconnecting the battery from its load
all of these
, Term 7 of 50
The number of class 1 circuits conductors in a raceway shall be
determined in accordance with 300.17
determined by the type of power source to the circuit
determined by the type of raceway
Class 1 circuits conductors are not allowed in a raceway
Term 8 of 50
A bonding conductor for a receiving antenna or grounding electrode conductor shall be
mounted
Securely in place
on a door or cover of an enclosure
on the antenna
none of these
Term 9 of 50
Ampacity adjustment (derating) for Class 1 circuit conductors in a raceway shall be applied if
a. the conductors carry a continuous load in excess of 10% of the ampacity of each
conductor
b. the total number of conductors is more than 3
c. the conductors are extended aerially beyond one building
d. a and b
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