IBEW Apprentice Resources
Free tools for anyone applying to an IBEW apprenticeship program or in their first years as an apprentice electrician. Built by an IBEW Local 134 journeyman.
Free IBEW Aptitude Practice Test
20 questions covering math, number sequences, reading comprehension, and mechanical reasoning. Same format as the real NJATC exam. No signup required.
Take the free test →Electrical Calculators
9 free calculators: voltage drop, wire sizing, conduit fill, box fill, load calculations, ampacity, derating, AFCI/GFCI lookup, and time & labor.
Open calculators →AI Code Lookup
Ask any NEC question in plain English. Get the exact article number and practical field answer. Every response cites the actual NEC — not a guess.
Ask a code question →What's on the IBEW Aptitude Test
The NJATC Aptitude Test (also called the IBEW aptitude test or JATC entrance exam) has four sections. Most locals require a composite score in the top 50-60% to move forward in the selection process.
Math & Algebra
~33% of examNumber Sequences
~17% of examReading Comprehension
~33% of examMechanical Reasoning
~17% of examStudy Tips From the Field
The math section is the hardest for most people. Practice fractions and worker/rate problems first.
Number sequences: look at the differences between numbers, not just the numbers themselves.
Reading comp passages are short — usually 3-4 sentences. Read slowly and answer only from the passage.
Mechanical reasoning is about ratios and proportions, not memorizing machine parts.
A passing score is typically 4/9 on reading and 4/33 on math — but higher scores improve your ranking.
You can usually retake the test after 6 months if you don't pass. Check with your local JATC.
Take the Free Practice Test
20 questions across all four exam sections. See exactly where you stand before the real test. No account required.
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Find Your Local
Free aptitude practice tests for major IBEW locals: