IBEW Study Guide 2026

Everything you need to pass the IBEW 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.

📋 IBEW Exam Format at a Glance

33
Questions
46 min
Time Limit
65.00%
Passing Score

📚 IBEW Topics to Study (87)

✍️ Sample IBEW Questions & Answers

1. What does the word 'NOMINAL' mean as used in electrical specifications?
✓ A named or stated value that may vary slightly in practice

Nominal means 'in name only' — a stated value used for identification that is approximate in practice (e.g., 120V nominal may be 114-126V).

2. A blueprint uses a scale of 1/4 inch = 1 foot. A wall measures 3.5 inches on the blueprint. What is the actual length?
✓ 14 feet

Scale: 1/4 inch = 1 foot, so 1 inch = 4 feet. Actual length = 3.5 × 4 = 14 feet.

3. Use the quadratic formula to solve: x² - 4x - 5 = 0
✓ x = 5 and x = -1

a=1, b=-4, c=-5. Discriminant=16+20=36. x=(4±6)/2. x=5 or x=-1.

4. The sum of the first 5 terms of an arithmetic sequence is 65. If the first term is 5, what is the common difference?
✓ 4

S_n = n/2 × (2a + (n-1)d). 65 = 2.5 × (10 + 4d). 26 = 10 + 4d. 4d = 16. d = 4.

5. Which sentence uses the word 'circuit' correctly in an electrical context?
✓ The circuit breaker tripped when the load exceeded capacity.

In electrical context, a circuit is a complete path for current flow. Circuit breakers protect electrical circuits.

6. A circuit requires two resistors, R1 and R2. The resistance of R1 is 5 ohms more than twice the resistance of R2. The total resistance of the circuit is 32 ohms. What is the resistance of R2?
✓ 9 ohms

Let R2 be 'x'. Then R1 can be expressed as '2x + 5'. Since the total resistance is the sum of the individual resistances, the equation is (2x + 5) + x = 32. Combine the like terms: 3x + 5 = 32. Subtract 5 from both sides: 3x = 27. Divide by 3 to find x: x = 9. So, the resistance of R2 is 9 ohms.

🎯 Free IBEW Practice Tests

📖 IBEW Guides & Articles

Your IBEW Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation

What Practice Test Geeks adds beyond an AI chat for IBEW

An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:

  • A timed, full-length IBEW mock exam — 33 questions in 46 minutes with a 65% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
  • A fixed IBEW question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
  • Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
  • A printable IBEW cheat sheet you can print or save as a PDF.
  • IBEW flashcards built from the same question bank.
  • Free IBEW practice tests with the correct answer shown after each question.
Start the Timed IBEW Mock Exam →
Was this helpful?

How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. electricaltrainingalliance.org — Test delivery, eligibility, passing score, retake policy, score release, score validity, exam information · verified Oct 2026