TEXAS APPRENTICE ELECTRICIAN EXAM – PRACTICE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
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Core Domains
National Electrical Code (NEC) Fundamentals
Electrical Definitions and Terminology
Electrical Theory and Calculations
Wiring Methods and Materials
Branch Circuits and Feeders
Grounding and Bonding
General Requirements for Electrical Installations
Occupational Safety and Health (OSHA) Standards
Texas State Laws and Administrative Rules
Introduction
This practice assessment is designed to evaluate the competency of individuals preparing
for the Texas Apprentice Electrician Exam. The primary purpose is to ensure candidates
possess a foundational understanding of the National Electrical Code and safe
installation practices required for the trade. The exam assesses a wide range of skills,
including technical knowledge of circuitry, regulatory compliance, and safety protocols.
Utilizing a mix of multiple-choice and scenario-based questions, the exam emphasizes
,real-world application and critical decision-making. Candidates must demonstrate the
ability to interpret technical standards and apply theoretical concepts to practical
electrical tasks, ensuring public safety and professional integrity in every installation.
Section One: Questions 1–100
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To provide a design manual for untrained persons
B. The practical safeguarding of persons and property from hazards arising from the
use of electricity
C. To ensure all electrical equipment is efficient and convenient
D. To regulate the cost of electrical installations
🟢 B. The practical safeguarding of persons and property from hazards arising from
the use of electricity
🔴 RATIONALE: NEC Article 90.1(A) explicitly states that the purpose of the code is the
practical safeguarding of persons and property from hazards arising from the use of
electricity.
2. Which of the following is the standard unit of measurement for electrical current?
A. Volt
B. Ohm
C. Ampere
D. Watt
🟢 C. Ampere
,🔴 RATIONALE: The ampere (A) is the base unit used to measure the rate of flow of
electrical charge in a circuit.
3. Under Texas law, which entity is responsible for the regulation of electrician
licensing?
A. Texas Department of Licensing and Regulation (TDLR)
B. Texas Board of Electrical Examiners
C. International Brotherhood of Electrical Workers (IBEW)
D. Texas Department of Public Safety
🟢 A. Texas Department of Licensing and Regulation (TDLR)
🔴 RATIONALE: The TDLR is the state agency that oversees the licensing and
regulation of electricians in the state of Texas.
4. A circuit breaker that is designed to shut off electric power in the event of a
ground-fault is known as a:
A. AFCI
B. GFCI
C. OCPD
D. MCCB
🟢 B. GFCI
🔴 RATIONALE: A Ground-Fault Circuit Interrupter (GFCI) is specifically designed to
protect people by de-energizing a circuit when it detects a current leak to ground.
5. What is the minimum clear working space depth required in front of electrical
equipment operating at 600 volts or less to ground where live parts are exposed
, on one side and no live or grounded parts are on the other?
A. 2 feet
B. 3 feet
C. 4 feet
D. 6 feet
🟢 B. 3 feet
🔴 RATIONALE: NEC Table 110.26(A)(1) specifies a minimum clear distance of 3 feet
for Condition 1 (exposed live parts on one side and no live or grounded parts on the
other).
6. According to the NEC, what color is typically reserved for the equipment
grounding conductor?
A. White
B. Black
C. Green
D. Red
🟢 C. Green
🔴 RATIONALE: NEC 250.119 states that equipment grounding conductors shall be
permitted to be bare, covered, or insulated. If insulated, the covering shall be green or
green with one or more yellow stripes.
7. Which of the following best describes "voltage"?
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A | INSTANT
DOWNLOAD PDF.
Core Domains
National Electrical Code (NEC) Fundamentals
Electrical Definitions and Terminology
Electrical Theory and Calculations
Wiring Methods and Materials
Branch Circuits and Feeders
Grounding and Bonding
General Requirements for Electrical Installations
Occupational Safety and Health (OSHA) Standards
Texas State Laws and Administrative Rules
Introduction
This practice assessment is designed to evaluate the competency of individuals preparing
for the Texas Apprentice Electrician Exam. The primary purpose is to ensure candidates
possess a foundational understanding of the National Electrical Code and safe
installation practices required for the trade. The exam assesses a wide range of skills,
including technical knowledge of circuitry, regulatory compliance, and safety protocols.
Utilizing a mix of multiple-choice and scenario-based questions, the exam emphasizes
,real-world application and critical decision-making. Candidates must demonstrate the
ability to interpret technical standards and apply theoretical concepts to practical
electrical tasks, ensuring public safety and professional integrity in every installation.
Section One: Questions 1–100
1. What is the primary purpose of the National Electrical Code (NEC)?
A. To provide a design manual for untrained persons
B. The practical safeguarding of persons and property from hazards arising from the
use of electricity
C. To ensure all electrical equipment is efficient and convenient
D. To regulate the cost of electrical installations
🟢 B. The practical safeguarding of persons and property from hazards arising from
the use of electricity
🔴 RATIONALE: NEC Article 90.1(A) explicitly states that the purpose of the code is the
practical safeguarding of persons and property from hazards arising from the use of
electricity.
2. Which of the following is the standard unit of measurement for electrical current?
A. Volt
B. Ohm
C. Ampere
D. Watt
🟢 C. Ampere
,🔴 RATIONALE: The ampere (A) is the base unit used to measure the rate of flow of
electrical charge in a circuit.
3. Under Texas law, which entity is responsible for the regulation of electrician
licensing?
A. Texas Department of Licensing and Regulation (TDLR)
B. Texas Board of Electrical Examiners
C. International Brotherhood of Electrical Workers (IBEW)
D. Texas Department of Public Safety
🟢 A. Texas Department of Licensing and Regulation (TDLR)
🔴 RATIONALE: The TDLR is the state agency that oversees the licensing and
regulation of electricians in the state of Texas.
4. A circuit breaker that is designed to shut off electric power in the event of a
ground-fault is known as a:
A. AFCI
B. GFCI
C. OCPD
D. MCCB
🟢 B. GFCI
🔴 RATIONALE: A Ground-Fault Circuit Interrupter (GFCI) is specifically designed to
protect people by de-energizing a circuit when it detects a current leak to ground.
5. What is the minimum clear working space depth required in front of electrical
equipment operating at 600 volts or less to ground where live parts are exposed
, on one side and no live or grounded parts are on the other?
A. 2 feet
B. 3 feet
C. 4 feet
D. 6 feet
🟢 B. 3 feet
🔴 RATIONALE: NEC Table 110.26(A)(1) specifies a minimum clear distance of 3 feet
for Condition 1 (exposed live parts on one side and no live or grounded parts on the
other).
6. According to the NEC, what color is typically reserved for the equipment
grounding conductor?
A. White
B. Black
C. Green
D. Red
🟢 C. Green
🔴 RATIONALE: NEC 250.119 states that equipment grounding conductors shall be
permitted to be bare, covered, or insulated. If insulated, the covering shall be green or
green with one or more yellow stripes.
7. Which of the following best describes "voltage"?
