Journeyman Wireman Electrical Test
Study Guide NEC - Larry Bobo
Workbook Exam 100% Correct!!
A phase converter with a 56 ampere full-load single phase input nameplate rating, that supplies
variable loads shall have an input conductor ampacity of __ amperes.
Phase Converters
455.6(A)(1) - ANSWER70
The grounded conductor of a 277/480 volt 3 phase wye service shall be run to and bonded to each
____
AC systems, grounding connections
250.24(C) - ANSWERservice disconnecting means
Parralleled, ungrounded 480 volt 3 phase 3 wire delta service conductors shall contain parallel
equipment bonding jumpers based on the size of the ____ in each raceway.
Jumpers, bonding, Service equipment
250.102(C)(2) - ANSWERservice entrance conductors
Luminaires that use a metal halide lamp other than a PAR lamp shall be provided with:
Ballasts, electric discharge lamps, Protection in recessed HID fixtures
410.130(F)(5) - ANSWERa containment barrier that encloses the lamp
The maximum standard overcurrent device rating for 3 parallel runs of 75 degrees C rated, 350 kcmil
THHW copper conductors in three parallel runs of EMT is _ amperes.
Ampacity tables
Table 310.15(B)(16), 240.4(C), 240.6 - ANSWER800
, Liquidtight flexible metal conduit with listed fittings shall be permitted in:
Class I Locations,
501.10(B)(2)(4), 501.30(B)(2) - ANSWERClass 1, Division 1 locations in lengths less than 6 ft with an
equipment bonding jumper
At an outdoor motor fuel dispensing facility, the area up to 18 inches above grade and within 20 feet
from the edge of a LPG dispenser shall be classified as:
Motor fuel dispensing facilities, Class I locations, Table 514.3(B)(1), Electrical equipment classified
areas,
514.3(B)(2), Table 514(B)(2) - ANSWERClass 1, Division 2
In other spaces used for envirnmental air handling purposes other than ducts or plenums, such as
the space above a suspended ceiling, which of the wiring methods is NOT allowed?
Cable trays, Plenums
300.22(C)(1) - ANSWERLiquidtight Flexible Metal Conduit
In non-residential use, what is the maximum overcurrent protection ampere rating for 2 AWG RHW
aluminum conductors with an ambient temperature of 88 degrees F?
Ampacity Tables
Table 310.15(B)(16) - ANSWER90
Panelboards shall have overcurrent protection of 200 amperes or less where equipped with snap
switches rated at _ amperes or less.
AC-DC general use snap switches, Panelboards, use in OR Switches, Panelboards, use in
408.36(A) - ANSWER30
If no overcurrent protection is provided on the secondary of a 480-volt, 3 phase, 5KVA transformer,
what is the maximum ampere primary overcurrent protection allowed?
Study Guide NEC - Larry Bobo
Workbook Exam 100% Correct!!
A phase converter with a 56 ampere full-load single phase input nameplate rating, that supplies
variable loads shall have an input conductor ampacity of __ amperes.
Phase Converters
455.6(A)(1) - ANSWER70
The grounded conductor of a 277/480 volt 3 phase wye service shall be run to and bonded to each
____
AC systems, grounding connections
250.24(C) - ANSWERservice disconnecting means
Parralleled, ungrounded 480 volt 3 phase 3 wire delta service conductors shall contain parallel
equipment bonding jumpers based on the size of the ____ in each raceway.
Jumpers, bonding, Service equipment
250.102(C)(2) - ANSWERservice entrance conductors
Luminaires that use a metal halide lamp other than a PAR lamp shall be provided with:
Ballasts, electric discharge lamps, Protection in recessed HID fixtures
410.130(F)(5) - ANSWERa containment barrier that encloses the lamp
The maximum standard overcurrent device rating for 3 parallel runs of 75 degrees C rated, 350 kcmil
THHW copper conductors in three parallel runs of EMT is _ amperes.
Ampacity tables
Table 310.15(B)(16), 240.4(C), 240.6 - ANSWER800
, Liquidtight flexible metal conduit with listed fittings shall be permitted in:
Class I Locations,
501.10(B)(2)(4), 501.30(B)(2) - ANSWERClass 1, Division 1 locations in lengths less than 6 ft with an
equipment bonding jumper
At an outdoor motor fuel dispensing facility, the area up to 18 inches above grade and within 20 feet
from the edge of a LPG dispenser shall be classified as:
Motor fuel dispensing facilities, Class I locations, Table 514.3(B)(1), Electrical equipment classified
areas,
514.3(B)(2), Table 514(B)(2) - ANSWERClass 1, Division 2
In other spaces used for envirnmental air handling purposes other than ducts or plenums, such as
the space above a suspended ceiling, which of the wiring methods is NOT allowed?
Cable trays, Plenums
300.22(C)(1) - ANSWERLiquidtight Flexible Metal Conduit
In non-residential use, what is the maximum overcurrent protection ampere rating for 2 AWG RHW
aluminum conductors with an ambient temperature of 88 degrees F?
Ampacity Tables
Table 310.15(B)(16) - ANSWER90
Panelboards shall have overcurrent protection of 200 amperes or less where equipped with snap
switches rated at _ amperes or less.
AC-DC general use snap switches, Panelboards, use in OR Switches, Panelboards, use in
408.36(A) - ANSWER30
If no overcurrent protection is provided on the secondary of a 480-volt, 3 phase, 5KVA transformer,
what is the maximum ampere primary overcurrent protection allowed?
