Study Hall rooms
Pick a room by your state or by the skill that is costing you points. Every room has a direct answer, a drill you can do today, and worked staff answers.
Study Hall rooms are free electrician exam prep hubs organized by state, retake problem, and NEC skill. Start with your state if you are checking rules. Start with a skill room if you already know the topic costing you points.
Fast paths
Calculations
Voltage drop, box fill, conduit fill, dwelling load, motors, and arithmetic setup.
Codebook speed
Open-book lookup rhythm, index keywords, and table selection under time.
Failed exam retake
Turn a score report into the next two topics to fix.
Daily drills
A rotating free drill for each NEC skill room.
State rooms
Skill rooms
Codebook Speed Room
Train the lookup rhythm that decides open-book exams.
Calculations Room
A repeatable five-step setup so you never freeze on the math.
Grounding and Bonding Room
Get Article 250 straight so it stops being a trap.
Motors Room
Stop mixing FLC with FLA and motor problems get predictable.
Conduit Fill Room
A five-step count, not a guess.
Box Fill Room
Count it the way 314.16 wants and the answer holds.
All answered questions
I failed the TDLR Calculations part. What should I study first?
How do I practice NEC table lookups without memorizing the book?
Can I bring my own NEC book to the TDLR exam?
Grounding electrode conductor vs equipment grounding conductor: which table sizes which?
What is the clean way to practice motor FLC table lookups?
How do I stop freezing when a calculation has three steps?
What should I do the last 7 days before a retake?
California provides the references. How should I practice?
When do I use 40% on conduit fill, and when not?
How do I count devices and grounds for box fill?
Is the TDLR Journeyman exam open book?
How many questions are on the TDLR Calculations part?
Is there a free electrician exam study group?
Why do I keep failing the electrician exam calculations?
How do I study with other electrician exam candidates?
What is the fastest way to find an answer in the NEC?
How do I read the 310.16 ampacity table?
How many 12 AWG THHN conductors fit in 1/2 inch EMT?
What is the 90-second rule on the electrician exam?
Why is the Texas TDLR calculations part scored separately now?
What size grounding electrode conductor do I need?
What is the most missed part of the journeyman electrician exam?
What score do I need to pass the California General Electrician exam and how long is it?
How much does the California General Electrician exam and application cost?
Which reference books does California provide at the test center for the General Electrician exam?
How long do I have to wait to retake the California General Electrician exam if I fail?
Do I schedule the California General Electrician exam through Pearson VUE?
How many hours do you need to take the Texas journeyman electrician exam?
How much does the Texas journeyman electrician exam cost?
Is the Texas journeyman electrician exam multiple choice?
How do I pass the Texas TDLR journeyman electrician exam?
What happens if I fail the electrician exam twice?
How do I calculate three-phase voltage drop?
What is a demand factor in electrical load calculations?
What is the difference between FLA and FLC for a motor?
What are the steps to calculate box fill?
What conduit size do I need for a given number of wires?
How do I study for the electrician exam while working full time?
What are the most important NEC articles for the journeyman exam?
How many practice questions should I do before the exam?