TEXAS ELECTRICAL CONTRACTOR EXAM –
QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES |
GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains
- General Electrical Theory and Calculations
- National Electrical Code (NEC) Requirements
- Texas Administrative Code (Chapter 73)
- Grounding and Bonding
- Wiring Methods and Materials
- Motors and Controllers
- Overcurrent Protection
- Branch Circuits and Feeders
- Special Occupancies and Equipment
- Occupational Safety and Health (OSHA) Standards
Introduction
The purpose of this assessment is to evaluate the
comprehensive competency of individuals seeking
,licensure as electrical contractors in the state of Texas.
This examination assesses a candidate's mastery of the
National Electrical Code, state-specific statutes, and the
administrative rules governing electrical work. The
assessment is structured using a combination of multiple-
choice questions and complex scenario-based items that
require the application of technical data to real-world
electrical installations. Candidates must demonstrate
proficiency in calculations, safety protocols, and
professional decision-making. By focusing on critical
thinking and the practical application of regulatory
standards, this exam ensures that practitioners possess the
essential skills to maintain public safety and high-quality
electrical infrastructure.
Section One: Questions 1–100
1. What is the maximum number of disconnects
permitted for a single service, grouped in one
location, as per NEC Article 230?
,A. Two
B. Four
C. Six
D. Eight
🟢 C. Six
🔴 Explanation: NEC 230.71(A) specifies that the service
disconnecting means for each service permitted by
230.2, or for each set of service-entrance conductors
permitted by 230.40, shall consist of not more than six
switches or six circuit breakers.
2. A 240-volt, single-phase, 15-kilowatt electric range
has a demand factor applied for feeder
calculations. What is the calculated load in amperes
for this range?
A. 33.3 amperes
B. 37.5 amperes
C. 45.0 amperes
D. 62.5 amperes
, 🟢 B. 37.5 amperes
🔴 Explanation: Using NEC Table 220.55, a 15-kW range
falls under Column C. The demand for one range not
over 12 kW is 8 kW. For ranges over 12 kW, increase the
demand by 5% for each kW over 12. 15kW - 12kW =
3kW. 8kW x 1.15 = 9.2kW. 9,200W / 240V = 38.3A.
Closest standard calculation for exam purposes is B.
3. Under the Texas Electrical Safety and Licensing Act,
who is responsible for ensuring that an electrical
contractor maintains the required amount of
general liability insurance?
A. The lead journeyman
B. The master electrician of record
C. The municipal inspector
D. The apprentice supervisor
🟢 B. The master electrician of record
🔴 Explanation: Texas Administrative Code Chapter
73.51 dictates that the master electrician of record is
QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES |
GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains
- General Electrical Theory and Calculations
- National Electrical Code (NEC) Requirements
- Texas Administrative Code (Chapter 73)
- Grounding and Bonding
- Wiring Methods and Materials
- Motors and Controllers
- Overcurrent Protection
- Branch Circuits and Feeders
- Special Occupancies and Equipment
- Occupational Safety and Health (OSHA) Standards
Introduction
The purpose of this assessment is to evaluate the
comprehensive competency of individuals seeking
,licensure as electrical contractors in the state of Texas.
This examination assesses a candidate's mastery of the
National Electrical Code, state-specific statutes, and the
administrative rules governing electrical work. The
assessment is structured using a combination of multiple-
choice questions and complex scenario-based items that
require the application of technical data to real-world
electrical installations. Candidates must demonstrate
proficiency in calculations, safety protocols, and
professional decision-making. By focusing on critical
thinking and the practical application of regulatory
standards, this exam ensures that practitioners possess the
essential skills to maintain public safety and high-quality
electrical infrastructure.
Section One: Questions 1–100
1. What is the maximum number of disconnects
permitted for a single service, grouped in one
location, as per NEC Article 230?
,A. Two
B. Four
C. Six
D. Eight
🟢 C. Six
🔴 Explanation: NEC 230.71(A) specifies that the service
disconnecting means for each service permitted by
230.2, or for each set of service-entrance conductors
permitted by 230.40, shall consist of not more than six
switches or six circuit breakers.
2. A 240-volt, single-phase, 15-kilowatt electric range
has a demand factor applied for feeder
calculations. What is the calculated load in amperes
for this range?
A. 33.3 amperes
B. 37.5 amperes
C. 45.0 amperes
D. 62.5 amperes
, 🟢 B. 37.5 amperes
🔴 Explanation: Using NEC Table 220.55, a 15-kW range
falls under Column C. The demand for one range not
over 12 kW is 8 kW. For ranges over 12 kW, increase the
demand by 5% for each kW over 12. 15kW - 12kW =
3kW. 8kW x 1.15 = 9.2kW. 9,200W / 240V = 38.3A.
Closest standard calculation for exam purposes is B.
3. Under the Texas Electrical Safety and Licensing Act,
who is responsible for ensuring that an electrical
contractor maintains the required amount of
general liability insurance?
A. The lead journeyman
B. The master electrician of record
C. The municipal inspector
D. The apprentice supervisor
🟢 B. The master electrician of record
🔴 Explanation: Texas Administrative Code Chapter
73.51 dictates that the master electrician of record is
