Florida Certified Electrical Contractor
Licensing Exam Questions and Correct
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Rationales 2026 Q&A | Instant
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1. Which National Electrical Code (NEC) article covers the general
requirements for grounding and bonding?
A. Article 210
B. Article 220
C. Article 250
D. Article 300
Rationale: Article 250 establishes the requirements for grounding and
bonding of electrical systems and equipment. It explains grounding
electrode systems, equipment grounding conductors, bonding jumpers,
and methods used to reduce electrical shock hazards while providing
effective fault-current paths.
2. What is the primary purpose of an equipment grounding
conductor?
A. Carry normal load current
B. Increase voltage
,C. Provide a low-impedance fault current path
D. Reduce conductor resistance
Rationale: Equipment grounding conductors are designed to safely carry
fault current back to the source, allowing overcurrent protective devices
to operate quickly and clear dangerous faults. They should never carry
current during normal operation.
3. Which NEC article covers branch circuits?
A. Article 230
B. Article 210
C. Article 240
D. Article 300
Rationale: NEC Article 210 contains requirements for branch circuits,
including conductor sizing, receptacle placement, GFCI and AFCI
protection, and branch-circuit ratings.
4. A continuous load is defined as a load expected to operate for at
least:
A. 30 minutes
B. 1 hour
C. 2 hours
D. 3 hours or more
Rationale: According to the NEC, a continuous load operates for three
hours or more. Branch circuits and overcurrent devices serving
,continuous loads must generally be sized at 125% of the continuous
load.
5. A 40-amp continuous load requires a minimum branch-circuit
rating of:
A. 40 A
B. 45 A
C. 50 A
D. 60 A
Rationale: Continuous loads must be multiplied by 125%. Therefore, 40
A × 1.25 = 50 A. The next standard branch-circuit rating is 50 amperes.
6. Which conductor material generally has the highest electrical
conductivity?
A. Aluminum
B. Steel
C. Brass
D. Copper
Rationale: Copper offers excellent electrical conductivity, durability, and
corrosion resistance. It has lower resistance than aluminum and is
commonly used in electrical installations.
7. Which NEC article governs overcurrent protection?
, A. Article 220
B. Article 250
C. Article 240
D. Article 430
Rationale: NEC Article 240 establishes the requirements for overcurrent
protection devices, including circuit breakers and fuses, ensuring
conductors and equipment are protected from excessive current.
8. Which device protects people from electrical shock caused by
ground faults?
A. AFCI
B. Standard breaker
C. Fuse
D. Ground-Fault Circuit Interrupter (GFCI)
Rationale: GFCIs monitor current imbalance between ungrounded and
grounded conductors. When an imbalance indicates current leakage to
ground, the device disconnects power rapidly to reduce the risk of
electrocution.
9. Which NEC article primarily addresses services?
A. Article 220
B. Article 230
C. Article 240
D. Article 250
Licensing Exam Questions and Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf.
1. Which National Electrical Code (NEC) article covers the general
requirements for grounding and bonding?
A. Article 210
B. Article 220
C. Article 250
D. Article 300
Rationale: Article 250 establishes the requirements for grounding and
bonding of electrical systems and equipment. It explains grounding
electrode systems, equipment grounding conductors, bonding jumpers,
and methods used to reduce electrical shock hazards while providing
effective fault-current paths.
2. What is the primary purpose of an equipment grounding
conductor?
A. Carry normal load current
B. Increase voltage
,C. Provide a low-impedance fault current path
D. Reduce conductor resistance
Rationale: Equipment grounding conductors are designed to safely carry
fault current back to the source, allowing overcurrent protective devices
to operate quickly and clear dangerous faults. They should never carry
current during normal operation.
3. Which NEC article covers branch circuits?
A. Article 230
B. Article 210
C. Article 240
D. Article 300
Rationale: NEC Article 210 contains requirements for branch circuits,
including conductor sizing, receptacle placement, GFCI and AFCI
protection, and branch-circuit ratings.
4. A continuous load is defined as a load expected to operate for at
least:
A. 30 minutes
B. 1 hour
C. 2 hours
D. 3 hours or more
Rationale: According to the NEC, a continuous load operates for three
hours or more. Branch circuits and overcurrent devices serving
,continuous loads must generally be sized at 125% of the continuous
load.
5. A 40-amp continuous load requires a minimum branch-circuit
rating of:
A. 40 A
B. 45 A
C. 50 A
D. 60 A
Rationale: Continuous loads must be multiplied by 125%. Therefore, 40
A × 1.25 = 50 A. The next standard branch-circuit rating is 50 amperes.
6. Which conductor material generally has the highest electrical
conductivity?
A. Aluminum
B. Steel
C. Brass
D. Copper
Rationale: Copper offers excellent electrical conductivity, durability, and
corrosion resistance. It has lower resistance than aluminum and is
commonly used in electrical installations.
7. Which NEC article governs overcurrent protection?
, A. Article 220
B. Article 250
C. Article 240
D. Article 430
Rationale: NEC Article 240 establishes the requirements for overcurrent
protection devices, including circuit breakers and fuses, ensuring
conductors and equipment are protected from excessive current.
8. Which device protects people from electrical shock caused by
ground faults?
A. AFCI
B. Standard breaker
C. Fuse
D. Ground-Fault Circuit Interrupter (GFCI)
Rationale: GFCIs monitor current imbalance between ungrounded and
grounded conductors. When an imbalance indicates current leakage to
ground, the device disconnects power rapidly to reduce the risk of
electrocution.
9. Which NEC article primarily addresses services?
A. Article 220
B. Article 230
C. Article 240
D. Article 250
