Florida Specialty Electrical Contractor
Examination 2026 — 100 Practice
Questions with Answers & Detailed
Rationales | Complete Contractor
Licensing Exam Prep & Study Guide
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To establish electrical utility rates
B. To provide practical safeguards for persons and property from electrical
hazards
C. To regulate electrician wages
D. To establish building material prices
Answer: To provide practical safeguards for persons and property from electrical
hazards
Rationale: The NEC establishes minimum requirements intended to protect
people and property from hazards arising from the use of electricity.
2. Which organization publishes the National Electrical Code?
A. OSHA
B. ICC
,C. NFPA
D. EPA
Answer: NFPA
Rationale: The National Fire Protection Association publishes NFPA 70, the
National Electrical Code.
3. What is the purpose of an equipment grounding conductor?
A. To carry normal load current
B. To provide a low-impedance path for fault current
C. To increase circuit voltage
D. To reduce conductor size
Answer: To provide a low-impedance path for fault current
Rationale: The equipment grounding conductor provides a conductive path for
fault current so protective devices can operate promptly.
4. Which conductor normally carries current from a branch-circuit overcurrent
device to a load?
A. Grounding electrode conductor
B. Equipment grounding conductor
C. Ungrounded conductor
D. Bonding jumper
Answer: Ungrounded conductor
Rationale: The ungrounded conductor, commonly called the hot conductor,
supplies current to the connected load.
5. What is the unit of electrical resistance?
A. Volt
B. Ampere
,C. Watt
D. Ohm
Answer: Ohm
Rationale: Electrical resistance is measured in ohms and represents opposition
to current flow.
6. Which formula represents Ohm's law?
A. P = VI
B. E = IR
C. I = PR
D. R = EI
Answer: E = IR
Rationale: Ohm's law states that voltage equals current multiplied by
resistance.
7. A circuit has 120 volts and 20 ohms of resistance. Approximately how much
current flows?
A. 2 A
B. 4 A
C. 6 A
D. 10 A
Answer: 6 A
Rationale: Using I = E/R, 120 volts divided by 20 ohms equals 6 amperes.
8. What is electrical power measured in?
A. Ohms
B. Watts
C. Amperes
D. Hertz
, Answer: Watts
Rationale: The watt is the unit used to measure electrical power.
9. What is the basic power formula for a single-phase resistive load?
A. P = EI
B. P = E/R
C. P = R/I
D. P = I/R
Answer: P = EI
Rationale: For a single-phase resistive load, power in watts equals voltage
multiplied by current.
10.What does a circuit breaker primarily protect?
A. People from every electrical shock
B. Conductors from excessive current
C. Equipment from every voltage fluctuation
D. Utility transformers from lightning
Answer: Conductors from excessive current
Rationale: Overcurrent protection is primarily intended to protect circuit
conductors from damage caused by excessive current.
11.What is the purpose of a GFCI?
A. To increase circuit voltage
B. To detect certain ground-fault current and interrupt the circuit
C. To regulate frequency
D. To increase motor horsepower
Answer: To detect certain ground-fault current and interrupt the circuit
Rationale: A GFCI monitors current imbalance and disconnects the circuit when a
dangerous ground-fault condition is detected.
Examination 2026 — 100 Practice
Questions with Answers & Detailed
Rationales | Complete Contractor
Licensing Exam Prep & Study Guide
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To establish electrical utility rates
B. To provide practical safeguards for persons and property from electrical
hazards
C. To regulate electrician wages
D. To establish building material prices
Answer: To provide practical safeguards for persons and property from electrical
hazards
Rationale: The NEC establishes minimum requirements intended to protect
people and property from hazards arising from the use of electricity.
2. Which organization publishes the National Electrical Code?
A. OSHA
B. ICC
,C. NFPA
D. EPA
Answer: NFPA
Rationale: The National Fire Protection Association publishes NFPA 70, the
National Electrical Code.
3. What is the purpose of an equipment grounding conductor?
A. To carry normal load current
B. To provide a low-impedance path for fault current
C. To increase circuit voltage
D. To reduce conductor size
Answer: To provide a low-impedance path for fault current
Rationale: The equipment grounding conductor provides a conductive path for
fault current so protective devices can operate promptly.
4. Which conductor normally carries current from a branch-circuit overcurrent
device to a load?
A. Grounding electrode conductor
B. Equipment grounding conductor
C. Ungrounded conductor
D. Bonding jumper
Answer: Ungrounded conductor
Rationale: The ungrounded conductor, commonly called the hot conductor,
supplies current to the connected load.
5. What is the unit of electrical resistance?
A. Volt
B. Ampere
,C. Watt
D. Ohm
Answer: Ohm
Rationale: Electrical resistance is measured in ohms and represents opposition
to current flow.
6. Which formula represents Ohm's law?
A. P = VI
B. E = IR
C. I = PR
D. R = EI
Answer: E = IR
Rationale: Ohm's law states that voltage equals current multiplied by
resistance.
7. A circuit has 120 volts and 20 ohms of resistance. Approximately how much
current flows?
A. 2 A
B. 4 A
C. 6 A
D. 10 A
Answer: 6 A
Rationale: Using I = E/R, 120 volts divided by 20 ohms equals 6 amperes.
8. What is electrical power measured in?
A. Ohms
B. Watts
C. Amperes
D. Hertz
, Answer: Watts
Rationale: The watt is the unit used to measure electrical power.
9. What is the basic power formula for a single-phase resistive load?
A. P = EI
B. P = E/R
C. P = R/I
D. P = I/R
Answer: P = EI
Rationale: For a single-phase resistive load, power in watts equals voltage
multiplied by current.
10.What does a circuit breaker primarily protect?
A. People from every electrical shock
B. Conductors from excessive current
C. Equipment from every voltage fluctuation
D. Utility transformers from lightning
Answer: Conductors from excessive current
Rationale: Overcurrent protection is primarily intended to protect circuit
conductors from damage caused by excessive current.
11.What is the purpose of a GFCI?
A. To increase circuit voltage
B. To detect certain ground-fault current and interrupt the circuit
C. To regulate frequency
D. To increase motor horsepower
Answer: To detect certain ground-fault current and interrupt the circuit
Rationale: A GFCI monitors current imbalance and disconnects the circuit when a
dangerous ground-fault condition is detected.
