IEC YEAR 2 PART 4 EXAM |COMPLETE QUESTIONS WITH 100%
RATED EXPERT SOLUTIONS |2026 LATEST UPDATED
In general, flexible cords are not permitted in which application? - (answer)attached to building
surfaces
What is the allowable ampacity for 18 AWG fixture wire? - (answer)6 amperes
Panelboards equipped with snap switches rated ___ amperes or less shall have overcurrent
protection of 200 amperes or less. - (answer)30
The minumum clearance between a surface mounted fluorescent luminaire installed on the wall
above the door and the nearest point of a storage space in a clothes closet is ___. - (answer)6
inches
A recessed luminaire that is not identified for contact with insulation shall have all recessed parts
spaced not less than ___ from combustible materials. - (answer)1/2"
A plug with a two-foot-long cord is permitted for a ___. - (answer)waste disposer
,Plug-in-type overcurrent protection devices or plug-in type main lug assemblies that are ___ and
used to terminate field-installed ungrounded supply conductors shall be secured in place by an
addtional fastener that requires other than a pull to release the device from the mounting means
on the panel. - (answer)backfed
A snap switch shall not be grouped or ganged in enclosures with other snap switches, receptacles
or similiar devices, unless they are arranged so that the voltage between adjacent devices does
not exceed ___, or unless they are installed in enclosures equipped with identified, securely
installed barriers between adjacent devices. - (answer)300 volts
A non-grounding-type receptacle(s) shall be permitted to be replaced with a ground-fault
interupter-type of receptacle(s). These receptacles or their cover plates shall be marked ___. -
(answer)No equipment ground
Tamper-resistant receptacles are not required in ___. - (answer)correctional facilities
In which location is lighting track permitted? - (answer)4 feet above the floor operating on 24
volts.
Three-way and four-way switches shall be wired so that all switching is done only in the ___
conductors. - (answer)ungrounded
,The identification of the grounded conductor in a flexible cord shall be permitted to be by ___. -
(answer)any color braid with contrasting tracer
Type SO cord has ___ insulation. - (answer)thermoset
Ampacities for flexible cords are determined using ___ in the NEC®. - (answer)Section 400.5
Flexible cords shall be connected to devices and to fittings so that tension will not be transmitted
to joints or terminal screws. This shall be accomplished by ___. - (answer)any of these
The largest 2-pole circuit breaker that can be used to protect a 12 AWG copper Type SJO flexible
cord serving a single-phase load is ___ A. - (answer)25
Flexible cords and cables shall NOT be ___. - (answer)run through holes in walls
What is the maximum allowable ampacity of 14/2 AWG SJT cord? - (answer)18 amperes
, Flexible cords ___ AWG and larger are used to supply approved appliances and are considered
protected from overcurrent by overcurrent devices. - (answer)18
Electric vehicle cable type EVJ ___. I. is available in sizes 18 AWG to 500 kcmilII. is rated for
extra hard usageIII. has thermoset insulation - (answer)III only
The largest 1-pole circuit breaker that can be used to protect a 14 AWG copper Type SO flexible
cord is ___ A. - (answer)15
Ampacity of fixture wire is determined ___. - (answer)from a table in Table 402.5 of the Code
Scenario 230.28 Motor Nameplate Information: 5 hp 208-230/460-V 3Ø Branch Circuit Supply:
3-pole breaker in a 120/208-V, 3-ph, 4-W panel For the motor in Scenario 230.28, the minimum
size SO cord permitted contains ___ AWG conductors. - (answer)11
A 5-gang box and a partition are shown above in Figure 210.5. The box will contain single-pole
switches A, B, C, D & E that are fed from the following circuits that originate in a 277/480-volt,
3Ø, 4-wire panelboard:Switches A and B are fed from Circuit 1Switches C and D are fed from
Circuit 7Switch E is fed from Circuit 10The NEC® requires that partitions be installed between
switches ___.I. A & B II. B & C III. C & D IV. D & E - (answer)IV only
RATED EXPERT SOLUTIONS |2026 LATEST UPDATED
In general, flexible cords are not permitted in which application? - (answer)attached to building
surfaces
What is the allowable ampacity for 18 AWG fixture wire? - (answer)6 amperes
Panelboards equipped with snap switches rated ___ amperes or less shall have overcurrent
protection of 200 amperes or less. - (answer)30
The minumum clearance between a surface mounted fluorescent luminaire installed on the wall
above the door and the nearest point of a storage space in a clothes closet is ___. - (answer)6
inches
A recessed luminaire that is not identified for contact with insulation shall have all recessed parts
spaced not less than ___ from combustible materials. - (answer)1/2"
A plug with a two-foot-long cord is permitted for a ___. - (answer)waste disposer
,Plug-in-type overcurrent protection devices or plug-in type main lug assemblies that are ___ and
used to terminate field-installed ungrounded supply conductors shall be secured in place by an
addtional fastener that requires other than a pull to release the device from the mounting means
on the panel. - (answer)backfed
A snap switch shall not be grouped or ganged in enclosures with other snap switches, receptacles
or similiar devices, unless they are arranged so that the voltage between adjacent devices does
not exceed ___, or unless they are installed in enclosures equipped with identified, securely
installed barriers between adjacent devices. - (answer)300 volts
A non-grounding-type receptacle(s) shall be permitted to be replaced with a ground-fault
interupter-type of receptacle(s). These receptacles or their cover plates shall be marked ___. -
(answer)No equipment ground
Tamper-resistant receptacles are not required in ___. - (answer)correctional facilities
In which location is lighting track permitted? - (answer)4 feet above the floor operating on 24
volts.
Three-way and four-way switches shall be wired so that all switching is done only in the ___
conductors. - (answer)ungrounded
,The identification of the grounded conductor in a flexible cord shall be permitted to be by ___. -
(answer)any color braid with contrasting tracer
Type SO cord has ___ insulation. - (answer)thermoset
Ampacities for flexible cords are determined using ___ in the NEC®. - (answer)Section 400.5
Flexible cords shall be connected to devices and to fittings so that tension will not be transmitted
to joints or terminal screws. This shall be accomplished by ___. - (answer)any of these
The largest 2-pole circuit breaker that can be used to protect a 12 AWG copper Type SJO flexible
cord serving a single-phase load is ___ A. - (answer)25
Flexible cords and cables shall NOT be ___. - (answer)run through holes in walls
What is the maximum allowable ampacity of 14/2 AWG SJT cord? - (answer)18 amperes
, Flexible cords ___ AWG and larger are used to supply approved appliances and are considered
protected from overcurrent by overcurrent devices. - (answer)18
Electric vehicle cable type EVJ ___. I. is available in sizes 18 AWG to 500 kcmilII. is rated for
extra hard usageIII. has thermoset insulation - (answer)III only
The largest 1-pole circuit breaker that can be used to protect a 14 AWG copper Type SO flexible
cord is ___ A. - (answer)15
Ampacity of fixture wire is determined ___. - (answer)from a table in Table 402.5 of the Code
Scenario 230.28 Motor Nameplate Information: 5 hp 208-230/460-V 3Ø Branch Circuit Supply:
3-pole breaker in a 120/208-V, 3-ph, 4-W panel For the motor in Scenario 230.28, the minimum
size SO cord permitted contains ___ AWG conductors. - (answer)11
A 5-gang box and a partition are shown above in Figure 210.5. The box will contain single-pole
switches A, B, C, D & E that are fed from the following circuits that originate in a 277/480-volt,
3Ø, 4-wire panelboard:Switches A and B are fed from Circuit 1Switches C and D are fed from
Circuit 7Switch E is fed from Circuit 10The NEC® requires that partitions be installed between
switches ___.I. A & B II. B & C III. C & D IV. D & E - (answer)IV only
