Electrical Exam Practice Guides

This guide explains how to tackle service size calculation questions on NEC electrical exams and in real-world applications. It covers key concepts from NEC Articles 220 and 230, teaching readers how to identify relevant loads, apply appropriate demand factors, convert VA to amperes, and determine the minimum required service size for residential and commercial electrical systems.

This post walks you through the exact steps and rules for sizing motor conductors using code references and real-world examples.

Want to understand what it takes to pass California's General Electrician certification exam? This guide breaks down everything you need to know about the exam structure, qualification requirements, and content areas so you can prepare effectively for your journey to becoming a certified electrician.

Free NEC electrical exam question: Learn to calculate transformer primary overcurrent protection step-by-step with this essential NEC practice test walkthrough for journeyman and masters electricians.