Pipefitter Aptitude Test Prep for Union Apprentices [2026]
Pipefitter Aptitude Test Prep for Union Apprentices [2026]
Updated: March 2026
The Pipefitter Aptitude Test is a pre-employment cognitive assessment administered by GAN Human Resources on behalf of the United Association (UA) of Journeymen and Apprentices of the Plumbing and Pipefitting Industry. It is the required entrance exam for candidates applying to union pipefitter and steamfitter apprenticeship programs across the United States and Canada - and it is not a test of trade knowledge.
- The test covers 4 sections: Reading Comprehension, Math, Mechanical Ability, and Figure Visualization (Spatial Reasoning). No calculator is permitted.
- The passing threshold is 75% at most UA locals. However, most locals rank all applicants by score and fill available apprenticeship slots from the top down - passing is the floor, not the goal.
- The test is administered in person during open enrolment only - typically once or twice a year per local. A poor score means waiting up to 12 months for the next cycle
* GAN Human Resources administers the Pipefitter Aptitude Test on behalf of UA locals nationwide. Steamfitters applying through UA locals take the same test under the same framework.
1-Month Access
850 practice questions with detailed answers and explanations
- 19 English Comprehension practice tests
- 28 Numerical Reasoning practice tests
- 11 Mechanical practice tests
- 5 Spatial Reasoning practice tests
- 5 Math study guides
This pack doesn't include questions on chemistry concepts.
Question 1 - Math
Please choose the correct answer. If none of the options is the correct answer please choose answer choice E. - "N".
4 gallons = ? liters
Question 2 - Mechanical Aptitude
A canister containing oxygen gas at room temperature (25°C) has a pressure gauge attached. If we connect the canister to an identical but empty canister, what would the pressure gauge show?
Question 3 - Spatial Reasoning
The letters near the sides of each shape point out where exactly should the different shapes be joined together. Which of the following options shows the joint shape?
Pipefitter Test Online Preparation
The Pipefitter pre-apprenticeship exam study guides will familiarize you with the exam's subjects, while our practice tests coupled with Q&A analysis will provide you with the logic behind the correct answers.
JobTestPrep provides all of the essential tools for a successful exam experience. We offer online practice tests, answer explanations, and study guides all geared towards helping you get the apprenticeship.
Question 4 - Reading Comprehension
This part consists of several sentences, each followed by four possible ways of restating the main idea of that sentence in different words. For each question, choose the one restatement which best expresses the meaning of the original sentence.
The black widow spider's name comes from the female’s habit of eating the male after mating.
What are the Common Pipefitter / Steamfitter Aptitude Test Requirements?
Most of the local unions in the United States and Canada require:
- Submitting an application form.
- Birth certificate / Drivers license.
- High school diploma / GED.
- Passing a physical examination.
- Good level of understanding of English Comprehension, Math, and Science.
The pass threshold in most locales pipefitter trade tests is 75%.
You can expect to encounter four basic topics on the pre-apprenticeship exam:
- Reading Comprehension – While the question formats vary depending on the specific locale, the fundamental purpose of this test section is the assessment that tests your ability to understand what you are reading. If you have applied to become a pipefitter in Modesto, California, you will be given 15 minutes to read a five-page article, after which you'll be required to answer 20 True/False questions from memory.
- Figure Visualization (Spatial Reasoning) – The task involved in this section is the identification of a given object after it has been repositioned or folded. Expect multiple-choice questions.
- Mechanical Ability - This test may be the Bennett Mechanical aptitude exam, or alternatively a test that includes illustrations followed by questions on leverage, area, and the directional movement of gears.
- Math – Pipefitting trade math is a major portion of the pipefitter exam. You will find questions on addition, subtraction, multiplication, division, fractions, decimals, percentages, numerical comprehension, and numerical reasoning.
You will be given a standardized multiple-choice test, which must be completed within three hours. The scoring is based solely on the number of correct answers. Since there is no penalty for wrong answers, it is to your benefit to answer every question, and guess if necessary.
The three primary topics covered in the entrance exam consist of:
- Math - Math is by far the most extensive element of the pipefitter exam. Some of the concepts presented in the eight-section math portion of the entrance exam include exponents, fractions, decimals, ratios, square roots, estimation, rates, percentages, word problems, proportions, patterns & graphs, equations, inequalities, measurement of space and shapes, trigonometric ratios and transformations of geometric patterns.
- Science – This section of the exam is comprised of various science topics which pipefitters must apply daily, such as: Physics, electricity, energy, electromechanical systems, motion, force, gravity, mass, structural design, material properties, machine dynamics, temperature & heat, fluids & pressure, optics & light.
- Reading Comprehension – Expect a passage-oriented section. Your tasks involve the identification of facts and concepts, application and analysis of concepts, and conclusions all based solely upon the information contained in the accompanying passage.
What is the Difference Between the NCCER Pipefitter Test vs the Pipefitter Aptitude Test?
The main difference between the two exams is that the NCCER curriculum consists of questions for people who are already enlisted in an apprenticeship.
Pipefitter NCCER includes questions broken down into levels 1-4. Level one includes questions such as Pipefitting Hand Tools, Pipefitting Power Tools, Low-Pressure Pipe Systems, etc. The NCCER Pipefitter test is a closed-book assessment.
The Pipefitter entrance exam on the other hand is a pre-apprentice screening exam that tries to assess whether the candidate has the minimal required skills to be able to complete the apprenticeship successfully. It’s usually done by local unions in the U.S. and Canada such as the UA Local 597 (Chicago Pipefitters), UA Local 393 (California Pipefitters), UA Local 420 (Philadelphia Pipefitters), UA Local 170 (Vancouver Pipefitters) and many more. You can find your local union and its apprenticeship requirements in both Canada and the U.S in the following page.
* Please note - JobTestPrep's Pipefitter Apprentice Exam Practice PrepPack does not cover the NCCER Test, Journeyman Pipefitter Test, Red Seal Exams and ITA Pipefitter Test.
How to Pass the Pipefitter Assessment ?
A passing score on the Pipefitter test is essential if you are applying for an apprenticeship in pipefitting.
To make sure you are prepared for the assessment, it is a good idea to spend some time preparing beforehand.
Here are some tips that can help you out:
Practice assessments are a great way to prepare for any type of test. The more you practice, the better you will become at solving different types of questions.
The Jobtestprep Pipefitter prep includes 63 practice tests with hundreds of questions that will challenge and improve your skill level in Math, English, Mechanical Aptitude, and Spatial Reasoning.
There will be a time limit in your Pipefitter pre-apprentice entrance exam, so you will need to be able to solve the various types of questions quickly.
Thus, you should improve your time management skills. For best results, you should be able to answer questions quickly and accurately.
There is a time limit on JobTestPrep practice tests that mimics the time limit on a real exam. This time limit will help you measure and improve your solution speed.
Looking at pipefitter exam sample questions or taking pipefitter practice tests can help you identify any areas you are less familiar with.
By reviewing your Pipefitter test and answers, you can focus your revision on skills that need improvement. By doing this, you can significantly improve your performance in previously challenging areas.
This can then affect your ability to pass the test. Through JobTestPrep's results table, you'll be able to identify what questions and topics you answered incorrectly.
It is important to practice with exact test-like questions for a variety of reasons. You won't waste your time preparing for questions that are too hard or too easy.
Additionally, you'll be less anxious and less stressed since you'll know the marks you earn on a practice test will be similar to those you get on the real exam.
JobTestPrep offers accurate test-like questions that will save you time and enhance your confidence.
What's Included in the Complete Pipefitter Test Prep Course?
What’s Inside Our Pipefitter Aptitude Test PrepPack
- Full-length pipefitter aptitude test simulations covering all four GAN HR sections - Reading Comprehension, Math, Mechanical Ability, and Figure Visualization - timed and calibrated to be harder than the real test, so the actual exam feels manageable when it counts.
- 850+ targeted practice questions built around the specific demands of the GAN Human Resources test format - from solving numerical computation and reasoning problems without a calculator to applying mechanical principles and interpreting written passages under time pressure.
- Study guides covering the full scope of the pipefitter and steamfitter pre-apprenticeship aptitude test - the math concepts, mechanical principles, spatial reasoning strategies, and reading skills your UA local will test. Clear explanations and worked examples, not just answer keys.
- Detailed step-by-step explanations for every question, teaching you the reasoning behind each solution so you build genuine understanding across all sections - not just pattern recognition.
- A proven platform founded in 1992 that has helped thousands of candidates prepare for and pass their pipefitter and steamfitter union apprenticeship test across UA locals and JATC programs throughout North America.
About JobTestPrep
At JobTestPrep, we've helped thousands of candidates pass competitive hiring assessments since 1992. Our materials are designed by psychometric experts and updated based on real candidate feedback to reflect the latest test formats.
About the Author
Pipefitter Aptitude Test FAQs
It is definitely challenging to take the pipefitter aptitude test, as you must combine a good understanding of the English language, mechanical knowledge, and the ability to visualize figures.
Yes. Candidates applying to both pipefitter and steamfitter apprenticeship programs through UA locals take the same GAN Human Resources aptitude test. The test format, sections, and passing threshold are identical regardless of which trade designation you are applying under.
No. The test is a cognitive aptitude assessment, not a trade knowledge exam. It does not include questions about pipe types, fittings, installation methods, or safety codes. It measures math, reading comprehension, mechanical reasoning, and spatial thinking - skills that predict job and school performance, regardless of prior trade experience.
The passing threshold at most UA locals is 75%. However, passing alone does not guarantee selection. Most locals rank all applicants by score and fill available apprenticeship slots from the top down - the higher your score, the earlier you are selected.
Test availability is controlled by each UA local's open enrollment schedule, typically once or twice per year. A score below the competitive ranking threshold generally means waiting for the next enrollment cycle - up to 12 months at some locals.
GAN offers a $20 official study guide at the time of application. It covers the test format and includes some practice problems, but it is not calibrated to the competitive ranking standard. Candidates who need to score in the top tier - not just pass - typically supplement with additional practice material.
A PDF gives you a static list of questions with no feedback, no timing, and no way to know whether you actually understood the answer or just memorized it. The GAN HR aptitude test is timed and scored under pressure - a PDF cannot simulate that. JobTestPrep's online practice tests replicate the real test environment with timed sections, immediate answer explanations, and performance tracking so you can see which sections you are weak on before test day, not after.
After completing your payment, you will receive two emails: a payment receipt and a login link with your account details. Once you log in and reset your password, you will have instant, unlimited access to your PrepPack.
Applying for a Trade Apprenticeship? Find the Right Prep
