1|Page
FLORIDA ELECTRICAL CONTRACTOR ACTUAL
EXAM PREP 2026 ALL QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES ALREADY
A GRADED WITH EXPERT FEEDBACK |NEW AND
REVISED
1. What is the minimum size copper grounding electrode conductor
required for a service with 2/0 AWG copper service-entrance
conductors?
A. 8 AWG
B. 6 AWG
C. 4 AWG
D. 2 AWG
Rationale: NEC Table 250.66 specifies the grounding electrode
conductor size based on the service-entrance conductor size; for 2/0
AWG copper conductors, the minimum grounding electrode conductor
is 6 AWG copper.
2. For a one-family dwelling, what is the minimum required rating for a
feeder or service that supplies a continuous load?
A. 125% of the non-continuous load plus 100% of the continuous load
B. 100% of the non-continuous load plus 125% of the continuous
load
C. 100% of the total load
D. 125% of the total load
Rationale: NEC 215.2(A)(1) and 230.42 require that feeders and
services have an ampacity at least equal to 100% of the non-
continuous load plus 125% of the continuous load.
,2|Page
3. A 3-phase, 4-wire, 120/208V system is best described as what type of
transformer configuration?
A. Delta-Delta
B. Delta-Wye
C. Wye-Wye
D. Wye-Delta
Rationale: A 3-phase, 4-wire, 120/208V system is produced by a Delta-
Wye transformer configuration. The primary is delta-connected, and
the secondary is wye-connected, providing both line-to-line (208V) and
line-to-neutral (120V) voltages.
4. What is the maximum distance between supports for non-metallic
sheathed cable (NM) in a horizontal run?
A. 3 feet
B. 4 feet
C. 4.5 feet
D. 6 feet
Rationale: NEC 334.30 requires that NM cable be supported at
intervals not exceeding 4.5 feet (1.4 m) and within 12 inches of every
outlet box, junction box, cabinet, or fitting.
5. When installing conductors in a raceway, the maximum fill
percentage for three or more conductors is:
A. 30%
B. 40%
C. 50%
D. 60%
,3|Page
Rationale: NEC Chapter 9, Table 1 provides that for three or more
conductors in a raceway, the maximum fill percentage is 40%. For two
conductors, it is 31%; and for one conductor, it is 53%.
6. A continuous load is defined as a load where the maximum current is
expected to continue for how long?
A. 1 hour or more
B. 2 hours or more
C. 3 hours or more
D. 4 hours or more
Rationale: NEC Article 100 defines a continuous load as a load where
the maximum current is expected to continue for 3 hours or more.
Continuous loads require that the overcurrent device be sized at 125%
of the continuous load.
7. The minimum number of branch circuits required for a dwelling unit
is determined by:
A. The size of the service
B. The number of rooms
C. The calculated load
D. The square footage only
Rationale: NEC 210.11 requires that the number of branch circuits be
determined by the calculated load. The load calculation must consider
general lighting, small-appliance, and laundry circuits, as well as any
specific loads.
8. What is the maximum allowable ampacity for a 12 AWG copper
conductor with 90°C insulation, assuming ambient temperature of 30°C?
, 4|Page
A. 20 amps
B. 25 amps
C. 30 amps
D. 30 amps
Rationale: NEC Table 310.16 provides that a 12 AWG copper
conductor with 90°C insulation has an ampacity of 30 amps at 30°C
ambient temperature. However, the overcurrent protection for 12
AWG conductors is typically limited to 20 amps for general use (NEC
240.4(D)).
9. In a dwelling unit, the required number of small-appliance branch
circuits is:
A. 1
B. 2
C. 3
D. 4
Rationale: NEC 210.11(C)(1) requires at least two 20-ampere small-
appliance branch circuits to supply the kitchen, pantry, breakfast
room, dining room, and similar areas in a dwelling unit.
10. Which of the following is NOT an approved grounding electrode?
A. Metal underground water pipe
B. Metal frame of a building
C. Concrete-encased electrode
D. Plastic water pipe
Rationale: NEC 250.52 lists approved grounding electrodes including
metal underground water pipes, metal frames of buildings, concrete-
encased electrodes (UFER), ground rods, and other listed electrodes.
FLORIDA ELECTRICAL CONTRACTOR ACTUAL
EXAM PREP 2026 ALL QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES ALREADY
A GRADED WITH EXPERT FEEDBACK |NEW AND
REVISED
1. What is the minimum size copper grounding electrode conductor
required for a service with 2/0 AWG copper service-entrance
conductors?
A. 8 AWG
B. 6 AWG
C. 4 AWG
D. 2 AWG
Rationale: NEC Table 250.66 specifies the grounding electrode
conductor size based on the service-entrance conductor size; for 2/0
AWG copper conductors, the minimum grounding electrode conductor
is 6 AWG copper.
2. For a one-family dwelling, what is the minimum required rating for a
feeder or service that supplies a continuous load?
A. 125% of the non-continuous load plus 100% of the continuous load
B. 100% of the non-continuous load plus 125% of the continuous
load
C. 100% of the total load
D. 125% of the total load
Rationale: NEC 215.2(A)(1) and 230.42 require that feeders and
services have an ampacity at least equal to 100% of the non-
continuous load plus 125% of the continuous load.
,2|Page
3. A 3-phase, 4-wire, 120/208V system is best described as what type of
transformer configuration?
A. Delta-Delta
B. Delta-Wye
C. Wye-Wye
D. Wye-Delta
Rationale: A 3-phase, 4-wire, 120/208V system is produced by a Delta-
Wye transformer configuration. The primary is delta-connected, and
the secondary is wye-connected, providing both line-to-line (208V) and
line-to-neutral (120V) voltages.
4. What is the maximum distance between supports for non-metallic
sheathed cable (NM) in a horizontal run?
A. 3 feet
B. 4 feet
C. 4.5 feet
D. 6 feet
Rationale: NEC 334.30 requires that NM cable be supported at
intervals not exceeding 4.5 feet (1.4 m) and within 12 inches of every
outlet box, junction box, cabinet, or fitting.
5. When installing conductors in a raceway, the maximum fill
percentage for three or more conductors is:
A. 30%
B. 40%
C. 50%
D. 60%
,3|Page
Rationale: NEC Chapter 9, Table 1 provides that for three or more
conductors in a raceway, the maximum fill percentage is 40%. For two
conductors, it is 31%; and for one conductor, it is 53%.
6. A continuous load is defined as a load where the maximum current is
expected to continue for how long?
A. 1 hour or more
B. 2 hours or more
C. 3 hours or more
D. 4 hours or more
Rationale: NEC Article 100 defines a continuous load as a load where
the maximum current is expected to continue for 3 hours or more.
Continuous loads require that the overcurrent device be sized at 125%
of the continuous load.
7. The minimum number of branch circuits required for a dwelling unit
is determined by:
A. The size of the service
B. The number of rooms
C. The calculated load
D. The square footage only
Rationale: NEC 210.11 requires that the number of branch circuits be
determined by the calculated load. The load calculation must consider
general lighting, small-appliance, and laundry circuits, as well as any
specific loads.
8. What is the maximum allowable ampacity for a 12 AWG copper
conductor with 90°C insulation, assuming ambient temperature of 30°C?
, 4|Page
A. 20 amps
B. 25 amps
C. 30 amps
D. 30 amps
Rationale: NEC Table 310.16 provides that a 12 AWG copper
conductor with 90°C insulation has an ampacity of 30 amps at 30°C
ambient temperature. However, the overcurrent protection for 12
AWG conductors is typically limited to 20 amps for general use (NEC
240.4(D)).
9. In a dwelling unit, the required number of small-appliance branch
circuits is:
A. 1
B. 2
C. 3
D. 4
Rationale: NEC 210.11(C)(1) requires at least two 20-ampere small-
appliance branch circuits to supply the kitchen, pantry, breakfast
room, dining room, and similar areas in a dwelling unit.
10. Which of the following is NOT an approved grounding electrode?
A. Metal underground water pipe
B. Metal frame of a building
C. Concrete-encased electrode
D. Plastic water pipe
Rationale: NEC 250.52 lists approved grounding electrodes including
metal underground water pipes, metal frames of buildings, concrete-
encased electrodes (UFER), ground rods, and other listed electrodes.
