FLORIDA ELECTRICAL CONTRACTOR EXAM | QUESTIONS AND
ANSWERS | VERIFIED ANSWERS PLUS RATIONALES | EXAM ALREADY
GRADED A+ | LATEST EXAM UPDATE
1. Which of the following is the minimum size copper grounding electrode conductor
for a 200-amp service?
A) 6 AWG
B) 4 AWG
C) 2 AWG
D) 1 AWG
Answer: B) 4 AWG
Rationale: For a 200-amp service, NEC Table 250.66 requires a minimum 4 AWG
copper grounding electrode conductor.
2. What is the maximum distance a receptacle can be from the edge of a wall in a
dwelling room?
A) 4 feet
B) 6 feet
C) 8 feet
D) 12 feet
Answer: B) 6 feet
Rationale: NEC 210.52(A) requires that receptacles are installed so no point along the
floor line in any wall space is more than 6 feet from a receptacle.
3. Which type of conduit is generally used for underground installations?
A) EMT
B) FMC
C) RMC
D) PVC Schedule 40 or 80
Answer: D) PVC Schedule 40 or 80
Rationale: PVC conduit is resistant to moisture and corrosion, making it suitable for
underground installations per NEC 300.5.
4. A 120/240-volt, single-phase dwelling service is rated at 200 amps. What is the
minimum size aluminum service entrance conductor?
A) 1/0 AWG
B) 2/0 AWG
C) 3/0 AWG
D) 4/0 AWG
Answer: B) 2/0 AWG
Rationale: NEC Table 310.12 requires 2/0 AWG aluminum conductors for a 200-amp
single-phase service.
5. What color is typically used to identify a grounded (neutral) conductor?
A) Red
B) Black
C) White
D) Green
, Answer: C) White
Rationale: NEC 200.6 requires white or gray insulation for grounded conductors.
6. The maximum distance between supports for EMT conduit is:
A) 3 feet
B) 10 feet
C) 6 feet
D) 12 feet
Answer: C) 10 feet
Rationale: NEC 358.30 specifies that EMT must be supported within 3 feet of each outlet
box and at intervals not exceeding 10 feet.
7. What is the minimum working space in front of electrical panels rated 1200A and
below?
A) 24 inches
B) 30 inches
C) 36 inches
D) 42 inches
Answer: C) 36 inches
Rationale: NEC 110.26(A)(1) requires a minimum of 36 inches clear working space in
front of electrical equipment.
8. Which type of fire alarm wiring is commonly used for survivability in commercial
buildings?
A) NM-B
B) MC
C) FPL
D) UF-B
Answer: C) FPL
Rationale: FPL (Fire alarm protected) cables are designed to maintain circuit integrity
in the event of a fire.
9. What is the minimum burial depth for rigid metal conduit under a driveway?
A) 12 inches
B) 18 inches
C) 24 inches
D) 30 inches
Answer: B) 18 inches
Rationale: NEC 300.5 specifies a minimum of 18 inches burial depth for RMC under
areas subject to vehicle traffic.
10. What is the maximum number of 14 AWG conductors allowed in a 1-inch PVC
conduit?
A) 6
B) 8
C) 9
D) 10
Answer: C) 9
Rationale: NEC Chapter 9, Table 1 and Annex C shows that nine 14 AWG THHN
conductors can fit in 1-inch PVC conduit (75% fill).
,11. Which of the following is a requirement for GFCI protection in a bathroom?
A) Only receptacles near the sink
B) All receptacles in the bathroom
C) Only the lighting circuits
D) None required
Answer: B) All receptacles in the bathroom
Rationale: NEC 210.8(A) mandates GFCI protection for all receptacles in bathrooms.
12. What is the minimum wire size for a 20-amp branch circuit supplying general-use
receptacles?
A) 14 AWG
B) 12 AWG
C) 10 AWG
D) 8 AWG
Answer: B) 12 AWG
Rationale: NEC 210.19(A)(1) specifies 12 AWG for 20-amp branch circuits.
13. Which device is used to protect against both overcurrent and short circuits?
A) Fuse
B) Circuit breaker
C) Switch
D) Transformer
Answer: B) Circuit breaker
Rationale: Circuit breakers interrupt current flow during overcurrent and short-circuit
conditions.
14. What is the required ampacity for a feeder supplying a 60-amp load using copper
conductors?
A) 50 amps
B) 60 amps
C) 70 amps
D) 75 amps
Answer: C) 70 amps
Rationale: NEC 310.15 allows for a 125% adjustment on continuous loads, so 60A ×
1.25 = 75A; therefore, select 70A or next standard size.
15. Which type of raceway is flexible and often used in commercial lighting?
A) EMT
B) FMC
C) RMC
D) PVC
Answer: B) FMC
Rationale: Flexible metal conduit (FMC) is suitable for areas requiring bending around
obstacles, often in lighting systems.
16. What is the maximum number of conductors allowed in a 3/4-inch EMT conduit?
A) 6
B) 7
C) 9
D) 10
Answer: C) 9
, Rationale: NEC Chapter 9, Table 1 and Annex C allows up to nine 12 AWG conductors
in 3/4-inch EMT.
17. Which conductor color is used for an equipment grounding conductor?
A) Black
B) White
C) Green
D) Red
Answer: C) Green
Rationale: NEC 250.119 requires green or bare conductors for grounding.
18. A dwelling unit requires a minimum of how many small appliance circuits?
A) 1
B) 2
C) 3
D) 4
Answer: B) 2
Rationale: NEC 210.11(C)(1) mandates two 20-amp small appliance branch circuits for
kitchen counter receptacles.
19. Which NEC article covers Ground-Fault Circuit Interrupters?
A) 210
B) 220
C) 240
D) 210.8
Answer: D) 210.8
Rationale: NEC 210.8 provides requirements for GFCI protection locations.
20. Which conductor type is rated for wet locations?
A) NM-B
B) UF-B
C) THHN
D) NMB
Answer: C) THHN
Rationale: THHN conductors have a thermoplastic insulation suitable for wet or dry
locations.
21. In a 120/208V three-phase system, which is the line-to-neutral voltage?
A) 120V
B) 208V
C) 240V
D) 277V
Answer: A) 120V
Rationale: In a 120/208V three-phase system, the phase-to-neutral voltage is 120V;
phase-to-phase is 208V.
22. What is the minimum NEC requirement for arc-fault protection in bedrooms?
A) No requirement
B) AFCI breakers for all bedroom outlets
C) GFCI only
D) Only lighting circuits
Answer: B) AFCI breakers for all bedroom outlets
ANSWERS | VERIFIED ANSWERS PLUS RATIONALES | EXAM ALREADY
GRADED A+ | LATEST EXAM UPDATE
1. Which of the following is the minimum size copper grounding electrode conductor
for a 200-amp service?
A) 6 AWG
B) 4 AWG
C) 2 AWG
D) 1 AWG
Answer: B) 4 AWG
Rationale: For a 200-amp service, NEC Table 250.66 requires a minimum 4 AWG
copper grounding electrode conductor.
2. What is the maximum distance a receptacle can be from the edge of a wall in a
dwelling room?
A) 4 feet
B) 6 feet
C) 8 feet
D) 12 feet
Answer: B) 6 feet
Rationale: NEC 210.52(A) requires that receptacles are installed so no point along the
floor line in any wall space is more than 6 feet from a receptacle.
3. Which type of conduit is generally used for underground installations?
A) EMT
B) FMC
C) RMC
D) PVC Schedule 40 or 80
Answer: D) PVC Schedule 40 or 80
Rationale: PVC conduit is resistant to moisture and corrosion, making it suitable for
underground installations per NEC 300.5.
4. A 120/240-volt, single-phase dwelling service is rated at 200 amps. What is the
minimum size aluminum service entrance conductor?
A) 1/0 AWG
B) 2/0 AWG
C) 3/0 AWG
D) 4/0 AWG
Answer: B) 2/0 AWG
Rationale: NEC Table 310.12 requires 2/0 AWG aluminum conductors for a 200-amp
single-phase service.
5. What color is typically used to identify a grounded (neutral) conductor?
A) Red
B) Black
C) White
D) Green
, Answer: C) White
Rationale: NEC 200.6 requires white or gray insulation for grounded conductors.
6. The maximum distance between supports for EMT conduit is:
A) 3 feet
B) 10 feet
C) 6 feet
D) 12 feet
Answer: C) 10 feet
Rationale: NEC 358.30 specifies that EMT must be supported within 3 feet of each outlet
box and at intervals not exceeding 10 feet.
7. What is the minimum working space in front of electrical panels rated 1200A and
below?
A) 24 inches
B) 30 inches
C) 36 inches
D) 42 inches
Answer: C) 36 inches
Rationale: NEC 110.26(A)(1) requires a minimum of 36 inches clear working space in
front of electrical equipment.
8. Which type of fire alarm wiring is commonly used for survivability in commercial
buildings?
A) NM-B
B) MC
C) FPL
D) UF-B
Answer: C) FPL
Rationale: FPL (Fire alarm protected) cables are designed to maintain circuit integrity
in the event of a fire.
9. What is the minimum burial depth for rigid metal conduit under a driveway?
A) 12 inches
B) 18 inches
C) 24 inches
D) 30 inches
Answer: B) 18 inches
Rationale: NEC 300.5 specifies a minimum of 18 inches burial depth for RMC under
areas subject to vehicle traffic.
10. What is the maximum number of 14 AWG conductors allowed in a 1-inch PVC
conduit?
A) 6
B) 8
C) 9
D) 10
Answer: C) 9
Rationale: NEC Chapter 9, Table 1 and Annex C shows that nine 14 AWG THHN
conductors can fit in 1-inch PVC conduit (75% fill).
,11. Which of the following is a requirement for GFCI protection in a bathroom?
A) Only receptacles near the sink
B) All receptacles in the bathroom
C) Only the lighting circuits
D) None required
Answer: B) All receptacles in the bathroom
Rationale: NEC 210.8(A) mandates GFCI protection for all receptacles in bathrooms.
12. What is the minimum wire size for a 20-amp branch circuit supplying general-use
receptacles?
A) 14 AWG
B) 12 AWG
C) 10 AWG
D) 8 AWG
Answer: B) 12 AWG
Rationale: NEC 210.19(A)(1) specifies 12 AWG for 20-amp branch circuits.
13. Which device is used to protect against both overcurrent and short circuits?
A) Fuse
B) Circuit breaker
C) Switch
D) Transformer
Answer: B) Circuit breaker
Rationale: Circuit breakers interrupt current flow during overcurrent and short-circuit
conditions.
14. What is the required ampacity for a feeder supplying a 60-amp load using copper
conductors?
A) 50 amps
B) 60 amps
C) 70 amps
D) 75 amps
Answer: C) 70 amps
Rationale: NEC 310.15 allows for a 125% adjustment on continuous loads, so 60A ×
1.25 = 75A; therefore, select 70A or next standard size.
15. Which type of raceway is flexible and often used in commercial lighting?
A) EMT
B) FMC
C) RMC
D) PVC
Answer: B) FMC
Rationale: Flexible metal conduit (FMC) is suitable for areas requiring bending around
obstacles, often in lighting systems.
16. What is the maximum number of conductors allowed in a 3/4-inch EMT conduit?
A) 6
B) 7
C) 9
D) 10
Answer: C) 9
, Rationale: NEC Chapter 9, Table 1 and Annex C allows up to nine 12 AWG conductors
in 3/4-inch EMT.
17. Which conductor color is used for an equipment grounding conductor?
A) Black
B) White
C) Green
D) Red
Answer: C) Green
Rationale: NEC 250.119 requires green or bare conductors for grounding.
18. A dwelling unit requires a minimum of how many small appliance circuits?
A) 1
B) 2
C) 3
D) 4
Answer: B) 2
Rationale: NEC 210.11(C)(1) mandates two 20-amp small appliance branch circuits for
kitchen counter receptacles.
19. Which NEC article covers Ground-Fault Circuit Interrupters?
A) 210
B) 220
C) 240
D) 210.8
Answer: D) 210.8
Rationale: NEC 210.8 provides requirements for GFCI protection locations.
20. Which conductor type is rated for wet locations?
A) NM-B
B) UF-B
C) THHN
D) NMB
Answer: C) THHN
Rationale: THHN conductors have a thermoplastic insulation suitable for wet or dry
locations.
21. In a 120/208V three-phase system, which is the line-to-neutral voltage?
A) 120V
B) 208V
C) 240V
D) 277V
Answer: A) 120V
Rationale: In a 120/208V three-phase system, the phase-to-neutral voltage is 120V;
phase-to-phase is 208V.
22. What is the minimum NEC requirement for arc-fault protection in bedrooms?
A) No requirement
B) AFCI breakers for all bedroom outlets
C) GFCI only
D) Only lighting circuits
Answer: B) AFCI breakers for all bedroom outlets