EETC Study Guide 2026
Everything you need to pass the EETC 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.
📋 EETC Exam Format at a Glance
📚 EETC Topics to Study (68)
✍️ Sample EETC Questions & Answers
1. What is the maximum trade size for electrical nonmetallic tubing (ENT) permitted by the NEC?
NEC 362.20 limits ENT to a maximum trade size of 2 inches; larger sizes are not listed or manufactured for ENT.
2. A 'saddle bend' (four-bend saddle) in conduit is used to:
A four-bend saddle uses two pairs of equal opposing bends to rise over an obstacle and return to the original pathway height, allowing the conduit to bridge obstructions like pipes or beams.
3. Which ISA instrument tag designation indicates a flow indicating controller?
Per ISA-5.1, F=Flow, I=Indicating, C=Controller, so FIC is a flow instrument that both displays the measured value and provides control output.
4. A 20A, 120V circuit feeds a continuous load. Per NEC 210.20, the circuit's overcurrent device must be rated at least:
NEC 210.20(A) requires the overcurrent device to be rated at 125% of the continuous load current (20A × 1.25 = 25A).
5. Which document defines the national minimum safety standard for electrical installations in the United States?
NFPA 70, the National Electrical Code (NEC), is the nationally recognized minimum safety standard for electrical installations in the US.
6. Apparent power (S) in an AC circuit is the vector sum of real power (P) and reactive power (Q). The correct relationship is:
Apparent power S = √(P² + Q²), forming the hypotenuse of the power triangle with real and reactive power as legs.