PipePrep AI: Plumber Aptitude

Built by a federally recognized pre-apprenticeship instructor who has helped hundreds of applicants get into building-trades unions. Getting into a union plumbing, pipefitting, steamfitting, or sprinkler-fitting apprenticeship starts with one test: the aptitude battery administered by GAN Human Resources on behalf of United Association (UA) locals across the country. Most locals rank every qualified applicant by score and fill their classes from the top of the list down. Passing isn't the goal. Out-scoring the list is. WHAT'S ON THE TEST The battery runs about 140 questions in roughly two hours, across six timed sections — Reading Comprehension, Numerical Computation (fractions, decimals, percentages), Numerical Reasoning (number series), Problem Solving (word problems), Paper Folding (spatial visualization), and Mechanical Comprehension. No calculator is allowed. Around 70% is a common minimum to qualify (higher at some fitter locals), and your score becomes your ranking number. HOW PIPEPREP AI GETS YOU RANKED HIGHER • 10 FULL-LENGTH PRACTICE BATTERIES — six timed sections mirroring the real format, no calculator, just like test day • 1,300+ PRACTICE QUESTIONS with explanations that teach the method — and name the trap that catches everyone else • SCORE REPORT BUILT FOR RANKING — overall accuracy, a rank band, and all six sections scored the second you finish • SECTION DRILLS & MISSED-QUESTION REVIEW — attack your weakest section until it isn't • SPEED SPRINTS — 60-second no-calculator rounds for fractions, percentages, and number series • INTERACTIVE PAPER-FOLDING TUTORIAL — the section everyone fears, taught visually: fold, punch, unfold, mirror • PIPER, YOUR AI TUTOR — ask anything by text or voice: how to add fractions, how gear ratios work, pacing, or what the interview panel scores • ORAL INTERVIEW PREP — 48 panel questions with model answers, plus AI mock interviews that score you the way real panels do • UA LOCALS DIRECTORY — 50 locals with websites, training centers, and application notes • STEP-BY-STEP ROADMAP — from finding your local to the ranked list FIELD TOOLS YOU KEEP AFTER TEST DAY — FREE A working pipe trades toolbox, no subscription required: Pipe Offset Calculator (simple, rolling & parallel), Takeout & Cut Length, Grade & Slope, Pipe Volume & Test Fill, DFU Drain Sizer, Gas Line Sizer, Hanger Spacing, Trap Minimums, Water Supply Demand, Fraction Calculator, and an OJT Hours Tracker. COMMON QUESTIONS Can I use a calculator on the test? No — and that's exactly what this app trains for. Every question here is built to be solved by hand. What's the passing score? Roughly 70% at most locals, but qualifying just gets you on the list — locals fill seats from the top score down. Do all locals use the same test? Most UA locals use the GAN battery, but some use other assessments. Always confirm with your local. What's the hardest section? Usually Paper Folding and the time pressure — both have dedicated training here. Your first full-length practice battery is free. Go earn your spot. SUBSCRIPTION & PRICING 7-day free trial — full unlimited access. Pro Monthly: $14.99/month. Pro Annual: $79.99/year. Subscription auto-renews monthly ($14.99) or annually ($79.99) unless cancelled at least 24 hours before the renewal date. Cancel anytime in App Store settings. Free tier: your first full-length battery, daily AI questions, and every field tool. Privacy Policy: https://www.pipeprepai.com/privacy Terms of Use: https://www.pipeprepai.com/terms Support: pipeprepai@gmail.com PipePrep AI is an independent study tool. It is not affiliated with, endorsed by, or connected to the United Association, GAN Human Resources, or any union, training fund, or testing organization. Test formats vary by local — always verify with your local.