[NEW MEXICO (NM) ER?1J Journeyman Residential Wiring (Part 2 - Theory Exam) Exam Success Course] Prepare for the theoretical aspects of the journeyman residential wiring exam with our ER-1J Practice Course (Part 2). This course delves into the principles of residential electrical systems, including circuit design, load calculations, and troubleshooting techniques. With a focus on theory, you will engage with practice questions that challenge your understanding of electrical concepts and their practical applications. Detailed explanations will help clarify complex topics, ensuring you are well-prepared for the theory exam and equipped with the knowledge needed for journeyman-level expertise.