IEC FINAL EXAM | COMPLETE QUESTIONS WITH 100% RATED EXPERT
SOLUTIONS |2026 LATEST UPDATED
1. The minimum 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 ___.
a.6 inches
b.12 inches
c.2 feet
d.not allowed: a.6 inches
2. In which location is lighting track permitted?
Select one:
a.4 feet above the floor operating on 24 volts.
b.In a storage battery room.
c.Running through a wall of a house between a den and family room.
d.7 feet above the edge of a bathtub.: a.4 feet above the floor operating on 24 volts.
3. Three-way and four-way switches shall be wired so that all switching is done only in the ___ conductors.
Select one:
a.ungrounding
b.grounded
c.grounding
d.ungrounded: d.ungrounded
,4. 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.
Select one: a.20
b.15
c.30
d.25
e.35: d.25
5. Electric vehicle cable type EVJ ___.
I. is available in sizes 18 AWG to 500 kcmil
II. is rated for extra hard usageIII. has thermoset insulation
Select one: a.III only
b.I, II & III
c.II only
d.I only: a.III only
6. Ampacity of fixture wire is determined ___.
Select one:
a.by calculation, using the expected temperature rise of the fixture
b.from a table in Table 402.5 of the Code
c.by referring to ampacity Table 310.16
d.none of these: b.from a table in Table 402.5 of the Code
7. 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
Select one: a.IV only
b.I, II, III & IV
c.II only
d.II & IV only
e.No partitions are required: a.IV only
8. Where (snap) switches are installed in multigang boxes without permanent barriers (partitions) the maximum
voltage between adjacent switches is ___ volts.
Select one: a.300
b.250
c.150
d.240
e.480: a.300
9. Bending Space Requirements: 312.6 and 404.3
10. Three-way and four-way switches shall be wired so that all switching is done ___.
Select one:
a.only in the white circuit conductor
SOLUTIONS |2026 LATEST UPDATED
1. The minimum 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 ___.
a.6 inches
b.12 inches
c.2 feet
d.not allowed: a.6 inches
2. In which location is lighting track permitted?
Select one:
a.4 feet above the floor operating on 24 volts.
b.In a storage battery room.
c.Running through a wall of a house between a den and family room.
d.7 feet above the edge of a bathtub.: a.4 feet above the floor operating on 24 volts.
3. Three-way and four-way switches shall be wired so that all switching is done only in the ___ conductors.
Select one:
a.ungrounding
b.grounded
c.grounding
d.ungrounded: d.ungrounded
,4. 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.
Select one: a.20
b.15
c.30
d.25
e.35: d.25
5. Electric vehicle cable type EVJ ___.
I. is available in sizes 18 AWG to 500 kcmil
II. is rated for extra hard usageIII. has thermoset insulation
Select one: a.III only
b.I, II & III
c.II only
d.I only: a.III only
6. Ampacity of fixture wire is determined ___.
Select one:
a.by calculation, using the expected temperature rise of the fixture
b.from a table in Table 402.5 of the Code
c.by referring to ampacity Table 310.16
d.none of these: b.from a table in Table 402.5 of the Code
7. 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
Select one: a.IV only
b.I, II, III & IV
c.II only
d.II & IV only
e.No partitions are required: a.IV only
8. Where (snap) switches are installed in multigang boxes without permanent barriers (partitions) the maximum
voltage between adjacent switches is ___ volts.
Select one: a.300
b.250
c.150
d.240
e.480: a.300
9. Bending Space Requirements: 312.6 and 404.3
10. Three-way and four-way switches shall be wired so that all switching is done ___.
Select one:
a.only in the white circuit conductor
