CEI Study Guide 2026
Everything you need to pass the CEI exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CEI Exam Format at a Glance
📚 CEI Topics to Study (21)
✍️ Sample CEI Questions & Answers
1. What is the main goal of electrical safety regulations?
The main goal of electrical safety regulations is to protect individuals and property from the inherent hazards associated with electricity, such as electric shock, electrocution, fires, and explosions. These regulations establish minimum standards for the design, installation, maintenance, and operation of electrical systems. By enforcing these rules, they aim to minimize risks and prevent accidents, ensuring a safe environment for everyone.
2. Which conductor in a feeder must be identified by white or gray insulation, or three continuous white stripes for sizes 6 AWG and smaller per NEC 200.6?
NEC 200.6 requires grounded conductors (neutral) 6 AWG and smaller to be identified by continuous white or gray insulation, or three continuous white stripes.
3. What is the most effective way to measure success in plan review & permit processing within CEI professional practice?
Effective measurement combines multiple data sources — quantitative metrics, qualitative assessments, and stakeholder feedback — all aligned with clearly defined objectives for a comprehensive evaluation.
4. When inspecting a CT (current transformer) metering installation, why are instrument transformers used?
CT metering uses current transformers to step down high currents to a standard 5A secondary rating, allowing revenue-grade meters to measure large loads accurately.
5. What does NEC 230.82 specify regarding equipment connected on the supply side of the service disconnecting means?
NEC 230.82 lists equipment permitted to be connected on the supply side of the service disconnecting means, including meters and surge protective devices meeting certain criteria.
6. How should CEI professionals handle confidential information related to grounding & bonding requirements?
Confidential information must be handled according to established protocols, regulatory requirements, and professional ethics standards, including proper access control and disclosure procedures.