Electrical Exam Preparation

Raceway fill questions get tricky fast when you’re dealing with different conductor sizes, insulation types, and bare grounding conductors — and that’s exactly where most electricians get tripped up on exams. In this video, I walk you step-by-step through how to correctly calculate raceway fill when conductors are NOT all the same size , using the 2026 National Electrical Code® and the exact tables the NEC expects you to know. You’ll learn how to properly use: Chapter 9, Table 1 – Percentage fill requirements Chapter 9, Table 4 – Raceway internal areas Chapter 9, Table 5 – Insulated conductor areas Chapter 9, Table 8 – Bare and stranded conductor areas More importantly, you’ll learn how these tables work together , how to avoid common exam traps, and how to stay out of trouble when conductor types, insulation, and sizes don’t match. This is not memorization — this is understanding the NEC , so you can confidently work through journeyman and master electrician ex...

Raceway Fill Explained: Using NEC Informative Annex C & Chapter 9 Tables 4 and 5 Struggling with raceway fill calculations for conduit on your electrical exam? In this video, I break down exactly how to use NEC® Informative Annex C together with Chapter 9, Tables 4 and 5 to correctly size raceways and calculate conductor fill — the right way. You’ll learn: What Informative Annex C is (and when to use it) How Annex C ties directly into Chapter 9 How to use Table 4 (raceway internal area) How to use Table 5 (conductor areas) Common mistakes electricians make on journeyman and master exams How exam questions are designed to trip you up if you don’t understand the NEC language This isn’t about memorizing answers — it’s about reading, understanding, and applying the National Electrical Code so you can confidently eliminate wrong choices and select the best code-compliant answer on test day and in the field. 🔌 Want to master this and much more? At Fast Trax® Electrical Exam Prep, we go ...

Exam Trap Alert for Electricians! Some electrical exam questions are designed to look correct but are actually wrong if you don’t read carefully. The NEC isn’t just about doing the math — it’s about understanding minimum requirements , code intent , and how questions are written . When studying for an electrical exam, always double-check: What the question is really asking Whether an answer meets the minimum code requirement If a choice is technically correct but not the best answer Don’t memorize — verify . That mindset is how you pass exams and become a better electrician. ⚡