Pipefitting Certification

The Pipefitting Certification is a free intermediate-level, 20-minute skill test from Science of Apps. It tests pipefitting knowledge — pipe materials, sizes, fittings and valves, pipe maths and layout, joining by welding, threading, flanges and grooved couplings, and testing, supports and safety — written to ASME B31.3 process piping concepts, ASME A13.1 pipe identification, UA and NCCER training topics and OSHA lockout rules for 2026. Score 70% or more on its 20 questions to earn a verifiable Pipefitting Proficiency certificate (SOA-P5). Every question is based on published standards and research — including NCCER craft training and credentials (including millwright) (NCCER), ASME B31.3 Process Piping (ASME), Uniform Plumbing Code (IAPMO) — and each answer is explained with its source.

Science of Apps offers a free Pipefitting Certification, updated for 2026 and 2027. It measures materials, fittings and valves, pipe maths and layout, joining methods and testing, supports and safety and gives instant results with a shareable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Pipefitting Proficiency certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: NCCER craft training and credentials (including millwright) (NCCER); ASME B31.3 Process Piping (ASME); Uniform Plumbing Code (IAPMO); ASME A13.1 Scheme for the Identification of Piping Systems (ASME); Control of hazardous energy (lockout/tagout) (OSHA); AWS safety and health fact sheets (with ANSI Z49.1 Safety in Welding, Cutting and Allied Processes) (American Welding Society). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Materials, Fittings and Valves (Pipe sizes and schedules, Fittings and Valves); Pipe Maths and Layout (Offsets, Take-outs and Isometrics); Joining Methods (Welding, Threading and Flanges and grooved joints); Testing, Supports and Safety (Pressure testing, Supports and expansion and Safety). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Pipefitter or steamfitter, Apprentice pipefitter, Plumber moving into industrial piping, Piping foreman and Maintenance fitter. It suits anyone who wants a quick, verifiable way to show Pipefitting knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

Pipefitters lay out, cut, join and install piping systems for steam, gas, chemicals and water in plants and buildings. They need pipe maths for offsets and take-outs, knowledge of fittings, valves and joining methods, reading isometric drawings, and safe testing practice.

For a 45° offset, the travel (centre-to-centre length of the angled pipe) equals the set (offset distance) multiplied by about 1.414. For a 60° offset the multiplier is about 1.155, and for 22.5° it is about 2.613.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.