Journeyman Electrician Practice Test With
Solutions 100% Solved
To find the full-load current rating of the single-phase transformer apply the single-phase current
formula as shown:I = (150 kVA x 1000) / 240 volts = 15,000/240 = 625 amperes
Which one of the following listed circuit breakers is NOT a standard ampere rating? 75
amperes
the standard ampere ratings for fuses and circuit breakers. A circuit breaker with an ampere
rating of 75 amperes is not a standard ampere rating.
The MINIMUM length of free conductor to be left at each junction box for the purpose of
splicing conductors, or making connections to illuminares or devices shall be _____ . 6
inches
free conductor is to be left at each junction box for splices or the connection of luminaires or
devices. The intent of this rule is to ensure enough conductor slack for the terminal connections
or splices to be made easily.
, Journeyman Electrician Practice Test With
Solutions 100% Solved
In general, overhead service-drop conductors shall NOT be smaller than _____. 8 AWG
copper
overhead service-drop conductors to be not smaller than 8 AWG copper or 6 AWG aluminum or
copper-clad aluminum. Do not get service-drop conductors, the overhead conductors between the
utility electric supply system and the service point, confused with the service-entrance
conductors, the conductors from the service point from the utility company to the service
disconnecting means.
When a galvanized eye-bolt is to be used as the point of attachment for an electrical service, the
NEC requires the eye-bolt to be installed NOT less than _____ above finished grade. 10
ft.
provide adequate vertical clearance of the conductors and prevent physical damage to the
conductors and prevent persons from making accidental contact with the conductors which may
create a shock hazard or electrocution. In no case shall the point of attachment of the service-
drop conductors to be less than 10 ft. above finished grade.
Why is electrical continuity required for metallic conduit? To establish an effective
ground-fault path and facilitate the operation of the over-current protective device.
, Journeyman Electrician Practice Test With
Solutions 100% Solved
Electrical continuity is required for metallic conduit to establish an effective ground-fault path
and facilitate the operation of the overcurrent protective device.
In dwelling units, receptacle outlets installed for countertop surfaces, must be located above, but
NOT more than _____ above the countertop or work surface. 20 inches
receptacle outlets installed for countertop or work surfaces in dwelling units may be located on
or above, but not more than 20 in. above the countertop or work surface. The intent of this rule is
to eliminate the use of unsightly extension cords (which reduces the amount of usable countertop
space) on the countertop or work surface to supply cord-and-plug connected appliances. Also,
receptacles located more than 20 inches above countertops or work surfaces may interfere with
the cabinetry to be installed.
When conductors are installed in a conduit or tubing nipple of _____ or less in length, the
ampacity adjustment factors for more than three (3) current-carrying conductors in the raceway,
are not required to be applied. 24 inches
adjustment factors for more than three (3) current-carrying conductors in raceways shall not
apply where the raceway is not more than 24 inches in length. Where more than 3 current-
Solutions 100% Solved
To find the full-load current rating of the single-phase transformer apply the single-phase current
formula as shown:I = (150 kVA x 1000) / 240 volts = 15,000/240 = 625 amperes
Which one of the following listed circuit breakers is NOT a standard ampere rating? 75
amperes
the standard ampere ratings for fuses and circuit breakers. A circuit breaker with an ampere
rating of 75 amperes is not a standard ampere rating.
The MINIMUM length of free conductor to be left at each junction box for the purpose of
splicing conductors, or making connections to illuminares or devices shall be _____ . 6
inches
free conductor is to be left at each junction box for splices or the connection of luminaires or
devices. The intent of this rule is to ensure enough conductor slack for the terminal connections
or splices to be made easily.
, Journeyman Electrician Practice Test With
Solutions 100% Solved
In general, overhead service-drop conductors shall NOT be smaller than _____. 8 AWG
copper
overhead service-drop conductors to be not smaller than 8 AWG copper or 6 AWG aluminum or
copper-clad aluminum. Do not get service-drop conductors, the overhead conductors between the
utility electric supply system and the service point, confused with the service-entrance
conductors, the conductors from the service point from the utility company to the service
disconnecting means.
When a galvanized eye-bolt is to be used as the point of attachment for an electrical service, the
NEC requires the eye-bolt to be installed NOT less than _____ above finished grade. 10
ft.
provide adequate vertical clearance of the conductors and prevent physical damage to the
conductors and prevent persons from making accidental contact with the conductors which may
create a shock hazard or electrocution. In no case shall the point of attachment of the service-
drop conductors to be less than 10 ft. above finished grade.
Why is electrical continuity required for metallic conduit? To establish an effective
ground-fault path and facilitate the operation of the over-current protective device.
, Journeyman Electrician Practice Test With
Solutions 100% Solved
Electrical continuity is required for metallic conduit to establish an effective ground-fault path
and facilitate the operation of the overcurrent protective device.
In dwelling units, receptacle outlets installed for countertop surfaces, must be located above, but
NOT more than _____ above the countertop or work surface. 20 inches
receptacle outlets installed for countertop or work surfaces in dwelling units may be located on
or above, but not more than 20 in. above the countertop or work surface. The intent of this rule is
to eliminate the use of unsightly extension cords (which reduces the amount of usable countertop
space) on the countertop or work surface to supply cord-and-plug connected appliances. Also,
receptacles located more than 20 inches above countertops or work surfaces may interfere with
the cabinetry to be installed.
When conductors are installed in a conduit or tubing nipple of _____ or less in length, the
ampacity adjustment factors for more than three (3) current-carrying conductors in the raceway,
are not required to be applied. 24 inches
adjustment factors for more than three (3) current-carrying conductors in raceways shall not
apply where the raceway is not more than 24 inches in length. Where more than 3 current-
