Numerical Reasoning Flashcards
6 cards from real IBEW practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Numerical Reasoning flashcards as text
A job requires 240 feet of conduit. If conduit comes in 10-foot sections, and 10% extra is ordered for waste, how many sections are ordered?
Answer: 26
Base need: 240 ÷ 10 = 24 sections. With 10% extra: 24 × 1.10 = 26.4, rounded up to 26 sections.
If voltage is 120V and resistance is 15Ω, using Ohm's Law, what is the current?
Answer: 8A
I = V/R = 120 ÷ 15 = 8 amperes.
A rectangular room measures 18 feet by 14 feet. How many square feet of flooring is needed?
Answer: 252
Area = length × width = 18 × 14 = 252 square feet.
An electrician completes 2/5 of a job on Monday and 1/3 on Tuesday. What fraction of the job remains?
Answer: 4/15
Work done: 2/5 + 1/3 = 6/15 + 5/15 = 11/15. Remaining: 1 - 11/15 = 4/15.
Wire costs $0.85 per foot. How much does 350 feet cost?
Answer: $297.50
Cost = $0.85 × 350 = $297.50.
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?
Answer: 14 feet
Scale: 1/4 inch = 1 foot, so 1 inch = 4 feet. Actual length = 3.5 × 4 = 14 feet.