CEP Cheat Sheet 2026

The 30 highest-yield CEP facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is a conductor? → Allows electricity flow
2. What is the first step in troubleshooting? → Identify the problem
3. Why is documentation important during troubleshooting? → Track steps & causes
4. The purpose of overload relays in a motor starter is to: → Protect the motor from sustained overcurrent caused by mechanical overloading
5. Which personal protective equipment (PPE) principle applies to ALL CEP certified professionals regardless of their specific role? → PPE must be properly fitted, maintained, and replaced as needed
6. What documentation is needed after maintenance? → Work and test records
7. What is the PRIMARY purpose of obtaining CEP certification in Certified Electrical Professional? → To demonstrate verified competency and adherence to professional standards
8. What is system testing? → Evaluate complete system
9. When new equipment is introduced in Certified Electrical Professional, what is REQUIRED before staff use it? → Formal training, competency verification, and documentation
10. What does a circuit breaker do? → Interrupts current during overload
11. What is the MOST important reason for maintaining equipment maintenance logs in CEP practice? → To track maintenance history, predict failures, and demonstrate compliance
12. According to NEMA standards, a Size 1 motor starter has a maximum continuous current rating of: → 27 amperes
13. Under NEC 230.70, the service disconnecting means must be located: → Outside the building or nearest the point of entry inside
14. A variable frequency drive (VFD) controls AC motor speed by varying: → Both output frequency and voltage simultaneously
15. Why is regular system testing important? → Detect issues early
16. The locked rotor current (LRC) of a typical NEMA Design B AC induction motor is approximately how many times the motor's full-load current (FLC)? → 6 to 8 times FLC
17. Which NEC article specifically addresses wiring for health care facilities, including patient care areas? → Article 517
18. How should Certified Electrical Professional professionals handle equipment showing signs of malfunction during operation? → Immediately cease operation, secure the equipment, and report
19. A high-leg delta (wild leg) service has three phases. Which color identifies the high leg per NEC 230.56? → Orange
20. When calculating voltage drop for a single-phase circuit, which formula is correct? → VD = 2 × K × I × D / CM
21. What distinguishes a Certified Electrical Professional certified professional from a non-certified practitioner? → Certification validates competency through standardized assessment against benchmarks
22. A motor has a synchronous speed of 1800 RPM and runs at an actual speed of 1750 RPM. What is the motor's slip? → 2.78%
23. How should you isolate a fault? → Test components
24. Under NEC 300.3(B), all conductors of the same circuit must be contained in the same raceway, cable, or trench primarily to: → Minimize inductive heating of ferrous metal enclosures
25. What is the primary purpose of a dynamic braking resistor (DBR) connected to a VFD? → To absorb and dissipate as heat the energy generated when the motor decelerates
26. What distinguishes a Certified Electrical Professional certified professional from a non-certified practitioner? → Certification validates competency through standardized assessment against benchmarks
27. According to NEC Article 430, motors rated over 1 horsepower that are not continuously attended must be provided with: → Running overload protection that automatically disconnects the motor if it overheats
28. Which foundational principle is MOST important for success in Certified Electrical Professional? → Commitment to continuous learning, ethical practice, and quality outcomes
29. NEC 210.8(A) requires GFCI protection for 125V, 15A and 20A receptacles in which residential location? → Garages, crawl spaces, unfinished basements, kitchens, and bathrooms
30. When conducting a risk assessment for CEP operations, which factor should receive the HIGHEST priority? → Probability and severity of potential harm