LOW VOLTAGE PRACTICE TEST 1
QUESTIONS & ANSWERS SOLVED
100% CORRECT!!
1 of
50
Ter
m
The secondary circuit in lighting systems operating at less than 30V
shall be insulated from the branch circuit by
A fuseless secondary protector
A physical barrier
An isolating transformer
A separation of 2 in.
Give this one a try
later!
, d. all the d. any of the above
above 440.14 725.60
c. An isolating c. 125% of full-load current
transformer 411.7(B) 646.6 (A)
Don't know?
2 of 50
Term
The motor-compressor branch-circuit short-circuit and ground-fault
protective device shall be capable of carrying the starting current of
the motor. A protective device having a rating or setting not
exceeding __________ percent of the motor-compressor rated-load
current or branch-circuit selection current, whichever is greater,
shall be permitted.
a. 125
b. 100
c. 175
d. 200
Give this one a try later!
d. a and d. a and b
b 770.25 760.43
, c. 175 d. any of the above
440.22( 725.60
A)
Don't know?
3 of 50
Term
Grounding electrode conductor for Receiving Stations shall not be
smaller than
a.17 AWG copper clad steel or bronze
b. 8 AWG Aluminum
c. 10 AWG Copper
d. all of these
Give this one a try later!
d. all of d. all of
these these
645.5(E)(1) 810.21(H)
d. all of these d. any of the these
810.21(F) (1) and 810.13
(2)
Don't know?
, 4 of 50
Term
Wireways for audio amplifier and production equipment shall
be connected to
a. equipment grounding conductors
b. equipment bonding jumper
c. isolated grounding type receptacles
d. a and b
Give this one a try later!
d. a and d. a and b
b 760.43 770.25
d. a and c. a and b
b 760.121(B)
640.7(A)
Don't know?
5 of 50
Term
NPLFA circuit overcurrent protection
a. shall not exceed 7 amperes for 18 AWG conductors
b. shall not exceed 10 amperes for 16 AWG conductors
QUESTIONS & ANSWERS SOLVED
100% CORRECT!!
1 of
50
Ter
m
The secondary circuit in lighting systems operating at less than 30V
shall be insulated from the branch circuit by
A fuseless secondary protector
A physical barrier
An isolating transformer
A separation of 2 in.
Give this one a try
later!
, d. all the d. any of the above
above 440.14 725.60
c. An isolating c. 125% of full-load current
transformer 411.7(B) 646.6 (A)
Don't know?
2 of 50
Term
The motor-compressor branch-circuit short-circuit and ground-fault
protective device shall be capable of carrying the starting current of
the motor. A protective device having a rating or setting not
exceeding __________ percent of the motor-compressor rated-load
current or branch-circuit selection current, whichever is greater,
shall be permitted.
a. 125
b. 100
c. 175
d. 200
Give this one a try later!
d. a and d. a and b
b 770.25 760.43
, c. 175 d. any of the above
440.22( 725.60
A)
Don't know?
3 of 50
Term
Grounding electrode conductor for Receiving Stations shall not be
smaller than
a.17 AWG copper clad steel or bronze
b. 8 AWG Aluminum
c. 10 AWG Copper
d. all of these
Give this one a try later!
d. all of d. all of
these these
645.5(E)(1) 810.21(H)
d. all of these d. any of the these
810.21(F) (1) and 810.13
(2)
Don't know?
, 4 of 50
Term
Wireways for audio amplifier and production equipment shall
be connected to
a. equipment grounding conductors
b. equipment bonding jumper
c. isolated grounding type receptacles
d. a and b
Give this one a try later!
d. a and d. a and b
b 760.43 770.25
d. a and c. a and b
b 760.121(B)
640.7(A)
Don't know?
5 of 50
Term
NPLFA circuit overcurrent protection
a. shall not exceed 7 amperes for 18 AWG conductors
b. shall not exceed 10 amperes for 16 AWG conductors
