Texas Electrical License Exam 2026 – 190 Practice Questions with
Answers & Detailed Rationales, NEC 2023, Electrical Theory, Wiring
Methods, Circuit Calculations, Grounding & Bonding, Code
Compliance and Safety for Journeyman and Master Electricians
Section 1: General Knowledge and Definitions (Questions 1-19)
Question 1
What is the primary purpose of the National Electrical Code?
A. To ensure electrical installations are efficient and cost-effective
B. To provide practical safeguarding of persons and property from hazards arising from
electricity
C. To establish uniform electrical equipment manufacturing standards
D. To regulate the price of electrical contracting services
Correct Answer: B
Explanation:
NEC Article 90.1(A) states the purpose is the practical safeguarding of persons and property
from hazards arising from the use of electricity. It is not intended as a design specification or
instruction manual.
Question 2
Under NEC definitions, what is the term for the connection between the grounded circuit
conductor and the equipment grounding conductor at the service?
A. Grounding electrode conductor
B. Main bonding jumper
,C. Equipment bonding jumper
D. System bonding jumper
Correct Answer: B
Explanation:
The main bonding jumper is the connection between the grounded circuit conductor and
the equipment grounding conductor at the service. This creates the low-impedance path
necessary for fault current return.
Question 3
A building or structure qualifies as a "dwelling unit" under NEC Article 100 when it provides
permanent provisions for living, sleeping, cooking, and what additional function?
A. Working
B. Sanitation
C. Recreation
D. Storage
Correct Answer: B
Explanation:
A dwelling unit must include permanent provisions for living, sleeping, cooking, and
sanitation. All four functions must be present for a space to qualify as a dwelling unit under
Article 100 definitions.
Question 4
What is the NEC definition of a "continuous load"?
,A. A load that operates for 1 hour or more
B. A load that operates for 2 hours or more
C. A load where the maximum current is expected to continue for 3 hours or more
D. A load that operates 24 hours per day
Correct Answer: C
Explanation:
Article 100 defines a continuous load as one where the maximum current is expected to
continue for three hours or more. This distinction affects conductor and overcurrent device
sizing requirements.
Question 5
An "individual branch circuit" is defined as a branch circuit that supplies which of the
following?
A. Two or more receptacles
B. Only one utilization equipment
C. A maximum of three lighting outlets
D. Both lighting and receptacles
Correct Answer: B
Explanation:
Article 100 defines an individual branch circuit as one that supplies only one utilization
equipment. This allows the circuit to be sized specifically for that single load rather than
standard ratings.
Question 6
, What is the term for a conductor that normally carries current but is intentionally grounded?
A. Equipment grounding conductor
B. Grounded conductor
C. Grounding electrode conductor
D. Bonding jumper
Correct Answer: B
Explanation:
A grounded conductor is a system or circuit conductor that is intentionally grounded. It
normally carries current and is commonly referred to as the neutral in a 120/240V system.
Question 7
Accessible, as applied to equipment, means:
A. Capable of being reached quickly for operation without requiring climbing
B. Admitting close approach because not guarded by locked doors or other effective means
C. Able to be removed without damage to the equipment
D. Located within 6 feet 7 inches of the floor
Correct Answer: B
Explanation:
Article 100 defines accessible as admitting close approach because not guarded by locked
doors, elevation, or other effective means. This applies to equipment requiring examination
or service.
Question 8
Answers & Detailed Rationales, NEC 2023, Electrical Theory, Wiring
Methods, Circuit Calculations, Grounding & Bonding, Code
Compliance and Safety for Journeyman and Master Electricians
Section 1: General Knowledge and Definitions (Questions 1-19)
Question 1
What is the primary purpose of the National Electrical Code?
A. To ensure electrical installations are efficient and cost-effective
B. To provide practical safeguarding of persons and property from hazards arising from
electricity
C. To establish uniform electrical equipment manufacturing standards
D. To regulate the price of electrical contracting services
Correct Answer: B
Explanation:
NEC Article 90.1(A) states the purpose is the practical safeguarding of persons and property
from hazards arising from the use of electricity. It is not intended as a design specification or
instruction manual.
Question 2
Under NEC definitions, what is the term for the connection between the grounded circuit
conductor and the equipment grounding conductor at the service?
A. Grounding electrode conductor
B. Main bonding jumper
,C. Equipment bonding jumper
D. System bonding jumper
Correct Answer: B
Explanation:
The main bonding jumper is the connection between the grounded circuit conductor and
the equipment grounding conductor at the service. This creates the low-impedance path
necessary for fault current return.
Question 3
A building or structure qualifies as a "dwelling unit" under NEC Article 100 when it provides
permanent provisions for living, sleeping, cooking, and what additional function?
A. Working
B. Sanitation
C. Recreation
D. Storage
Correct Answer: B
Explanation:
A dwelling unit must include permanent provisions for living, sleeping, cooking, and
sanitation. All four functions must be present for a space to qualify as a dwelling unit under
Article 100 definitions.
Question 4
What is the NEC definition of a "continuous load"?
,A. A load that operates for 1 hour or more
B. A load that operates for 2 hours or more
C. A load where the maximum current is expected to continue for 3 hours or more
D. A load that operates 24 hours per day
Correct Answer: C
Explanation:
Article 100 defines a continuous load as one where the maximum current is expected to
continue for three hours or more. This distinction affects conductor and overcurrent device
sizing requirements.
Question 5
An "individual branch circuit" is defined as a branch circuit that supplies which of the
following?
A. Two or more receptacles
B. Only one utilization equipment
C. A maximum of three lighting outlets
D. Both lighting and receptacles
Correct Answer: B
Explanation:
Article 100 defines an individual branch circuit as one that supplies only one utilization
equipment. This allows the circuit to be sized specifically for that single load rather than
standard ratings.
Question 6
, What is the term for a conductor that normally carries current but is intentionally grounded?
A. Equipment grounding conductor
B. Grounded conductor
C. Grounding electrode conductor
D. Bonding jumper
Correct Answer: B
Explanation:
A grounded conductor is a system or circuit conductor that is intentionally grounded. It
normally carries current and is commonly referred to as the neutral in a 120/240V system.
Question 7
Accessible, as applied to equipment, means:
A. Capable of being reached quickly for operation without requiring climbing
B. Admitting close approach because not guarded by locked doors or other effective means
C. Able to be removed without damage to the equipment
D. Located within 6 feet 7 inches of the floor
Correct Answer: B
Explanation:
Article 100 defines accessible as admitting close approach because not guarded by locked
doors, elevation, or other effective means. This applies to equipment requiring examination
or service.
Question 8
