Texas Master Electrician Calculations Portion
Code edition notice: Since September 1, 2026, the Texas electrical exams reference the 2026 edition of the National Electrical Code (NEC). In the 2026 edition, the load-calculation rules moved from Article 220 to Article 120. For example, 220.52(A) and Table 220.45 in the 2023 NEC are 120.52(A) and Table 120.45 in the 2026 NEC. Our practice questions use the 2026 numbering. If your code book has load calculations in Article 220, it is the 2023 edition or older.
Practice at the real exam's pace
Every practice exam shows your time per question against the real exam's clock (5:09 here), and each topic lands in one of these:
What's on the exam
Questions per topic, out of 33Topics
Calculations and Theory
This topic includes a study brief covering key concepts and common mistakes — plus a 6-question practice quiz.
Electrical Services, Service Equipment, and Separately Derived Systems
This topic includes a study brief covering key concepts and common mistakes — plus a 24-question practice quiz.
Electrical Feeders
This topic includes a study brief covering key concepts and common mistakes — plus a 9-question practice quiz.
Branch Circuit Calculations and Conductors
This topic includes a study brief covering key concepts and common mistakes — plus a 12-question practice quiz.
Electrical Wiring Methods and Electrical Materials
This topic includes a study brief covering key concepts and common mistakes — plus a 6-question practice quiz.
Electrical Equipment and Devices
This topic includes a study brief covering key concepts and common mistakes — plus a 6-question practice quiz.
Motors and Generators
This topic includes a study brief covering key concepts and common mistakes — plus a 18-question practice quiz.
Electrical Control Devices and Disconnecting Means
This topic includes a study brief covering key concepts and common mistakes — plus a 3-question practice quiz.
Special Occupancies, Equipment, and Conditions
This topic includes a study brief covering key concepts and common mistakes — plus a 3-question practice quiz.
Renewable Energy Technologies
This topic includes a study brief covering key concepts and common mistakes — plus a 3-question practice quiz.