IBEW Cheat Sheet 2026

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

1. A conduit run requires 4 sections of pipe. The sections measure 8¾ ft, 6½ ft, 11¼ ft, and 9 ft. What is the total length? → 35 ft
2. How much money did Moen make on average each month from January to June? → £9,167
3. What is the perimeter of a square with a side length of 7 feet? → 28 ft
4. A project uses 3 times as much copper wire as aluminum wire. If 480 feet of wire are needed in total, how many feet of copper wire are needed? → 360 ft
5. Expand: (3x - 2)(3x + 2) → 9x² - 4
6. How many square feet are in 1 square yard? → 9 sq ft
7. A scale drawing uses a scale of 1 inch = 4 feet. If a wall is 9 inches on the drawing, how long is the actual wall? → 36 ft
8. Which of the following statements best describes the effect of friction in a real-world pulley system? → Friction requires the actual effort force to be greater than the ideal effort force.
9. Which number comes next: 4, 9, 16, 25, 36, ___? → 49
10. The perimeter of a rectangular electrical panel is 54 inches. The length of the panel is 3 inches less than twice its width. What is the width of the panel? → 10 inches
11. What is the next number in the series: 4, 8, 16, 32, 64, ___? → 128
12. What is the following digit in this sequence? 1, 5, 9, 13, 17, _ → 21
13. A spool of wire contains 500 feet and weighs 15 pounds. How much does a 200-foot section of the same wire weigh? → 6 pounds
14. Convert 7/8 to a decimal. → 0.875
15. Identify the next term: 7, 14, 28, 56, 112, ___? → 224
16. An electrician completes 2/5 of a job on Monday and 1/3 on Tuesday. What fraction of the job remains? → 4/15
17. Simplify: 4(2x - 3) - 2(x + 5) → 6x - 22
18. Out of 240 workers on a job site, 15% are apprentices. How many apprentices are there? → 36
19. Find the next term: 2, 4, 3, 9, 4, 16, 5, ___? → 25
20. Solve: 7 - 2x = 3x - 8 → x = 3
21. What is the next number: 2, 6, 18, 54, 162, ___? → 486
22. A 120-volt circuit has resistance R. Using V = IR with I = 15 amps, which equation correctly solves for R? → R = 120/15 = 8 ohms
23. Factor the sum of cubes: 8x³ + 27 → (2x + 3)(4x² - 6x + 9)
24. Which word is the antonym of TRANSPARENT? → Opaque
25. Which would be HARDER to turn with the same force: a small-diameter valve wheel or a large-diameter valve wheel? → The small wheel, because it has less mechanical advantage
26. How many of the cancelled flights in February originated from Gatwick Airport? → 25%
27. To solve for a variable in a circuit, you need to factor the expression n² + 8n - 48. What is the correct factored form? → (n - 4)(n + 12)
28. Two resistors of 6Ω and 3Ω are connected in parallel. Using the formula 1/R_total = 1/R₁ + 1/R₂, what is the total resistance? → 2 Ω
29. A compound pulley uses 5 rope segments to support a 500-lb load. How much effort force is needed (ignoring friction)? → 100 lbs
30. If f(x) = 4x - 3 and g(x) = x + 5, what is f(g(2))? → 25