ELECTRICIANS PRACTICE EXAM 2024
QUESTIONS & ANSWERS 100%
ACCURATE!!
1. Disregarding exceptions, dry-type transformers located indoors having a rating of greater than
_____ shall be installed in a transformer room of fire-resistant construction.
A. 75 KVA
B. 87 1/2 KVA
C. 112 1/2 KVA
D. 50 KVA - ANSWERC- 112 1/2 KVA
450.21(B) pg 335
2. What is the MINIMUM height allowed for a fence enclosing an outdoor installation of 2,400 volt
electrical equipment?
A. 6 feet
B. 7 feet
C. 8 feet
D. 9 feet - ANSWERB - 60 7 feet
110.31 pg 49
3. Where power for equipment is directly associated with the radio frequency distribution system is
carried by the coaxial cable, and the power source is a power limiting transformer, what is the
MAXIMUM voltage this coaxial cable may carry?
A. 50 volts
B. 60 volts
C. 120 volts
D. 150 volts - ANSWERB - 60 volts
, 820.15 pg 656
4. Where a 15-ampere rated general-use ac snap switch is used as a disconnecting means for an ac
motor, the NEC requires the MAXIMUM full-load current rating of the motor to be NO more than
_________.
A. 7.5 amperes
B. 10 amperes
C. 12 amperes
D. 15 amperes - ANSWERC - 12 amperes
430.109(C)(2) pg 315
15 amperes x 80% = 12 amperes
7. In regard to the tenant spaces in a retail shopping mall; each occupant shall have access to the
main disconnecting means, EXCEPT:
A. where the service and maintenance are provided by the building management.
B. where there are more than six disconnecting means provided.
C. where the primary feeder transformer does not exceed 600 volts.
D. where the secondary of the service transformer does not exceed 240-volts to ground.. - ANSWERA
- where the service and maintenance are provided by the building management.
240.24(B)(1) pg 98
8. Determine the conductor allowable ampacity given the following conditions:
* ambient temperature of 44 deg. C
* 250 kcmil THWN copper conductors
* four (4) current-carrying conductors are in the raceway
* length of raceway is 25 feet
A. 160 amperes
B. 167 amperes
QUESTIONS & ANSWERS 100%
ACCURATE!!
1. Disregarding exceptions, dry-type transformers located indoors having a rating of greater than
_____ shall be installed in a transformer room of fire-resistant construction.
A. 75 KVA
B. 87 1/2 KVA
C. 112 1/2 KVA
D. 50 KVA - ANSWERC- 112 1/2 KVA
450.21(B) pg 335
2. What is the MINIMUM height allowed for a fence enclosing an outdoor installation of 2,400 volt
electrical equipment?
A. 6 feet
B. 7 feet
C. 8 feet
D. 9 feet - ANSWERB - 60 7 feet
110.31 pg 49
3. Where power for equipment is directly associated with the radio frequency distribution system is
carried by the coaxial cable, and the power source is a power limiting transformer, what is the
MAXIMUM voltage this coaxial cable may carry?
A. 50 volts
B. 60 volts
C. 120 volts
D. 150 volts - ANSWERB - 60 volts
, 820.15 pg 656
4. Where a 15-ampere rated general-use ac snap switch is used as a disconnecting means for an ac
motor, the NEC requires the MAXIMUM full-load current rating of the motor to be NO more than
_________.
A. 7.5 amperes
B. 10 amperes
C. 12 amperes
D. 15 amperes - ANSWERC - 12 amperes
430.109(C)(2) pg 315
15 amperes x 80% = 12 amperes
7. In regard to the tenant spaces in a retail shopping mall; each occupant shall have access to the
main disconnecting means, EXCEPT:
A. where the service and maintenance are provided by the building management.
B. where there are more than six disconnecting means provided.
C. where the primary feeder transformer does not exceed 600 volts.
D. where the secondary of the service transformer does not exceed 240-volts to ground.. - ANSWERA
- where the service and maintenance are provided by the building management.
240.24(B)(1) pg 98
8. Determine the conductor allowable ampacity given the following conditions:
* ambient temperature of 44 deg. C
* 250 kcmil THWN copper conductors
* four (4) current-carrying conductors are in the raceway
* length of raceway is 25 feet
A. 160 amperes
B. 167 amperes
