Guides
Miss one section and you typically wait 6 to 12 months. Start with the one that would miss the cutoff.
Prep
Closer to #1 means you get called sooner and then start the apprenticeship. Wages start sooner when you start sooner.
Start here: free check-up
The start button. 18 questions free. No card.
Open guide →Study techniques that actually work
Five techniques you can try on the page: recall, spacing, mixed practice, weak-section focus, and a timed glance.
Open guide →Sample questions
One short original example per skill. Then the free check-up.
Open guide →Applicant Waiting List
This test is the gate. A higher score usually means you get called sooner.
Open guide →Career guidance
Quarter and Year include career guidance.
Career guidance
Applicant Waiting List, what happens after a call, and how to talk to your local. Included with Quarter and Year.
Open guide →Applicant Waiting List
The test is the gate. A higher score usually means you get called sooner. Locals vary. We do not promise a rank.
Open guide →After you get called
What typically happens next. Confirm the steps with your local. No one local's process is universal.
Open guide →Talking to your local
Useful questions. No dark patterns. We will not get you in.
Open guide →Trade math
The math a plumber uses. Pencil-and-paper, no calculator.
Trade math: library overview
The full trade-math section: tape measure, fractions, square feet, cubic feet, perimeter.
Open guide →How to read a tape measure to 1/16 inch
Miss a 1/16 read and that section can put you under the cutoff.
Open guide →Adding, subtracting, multiplying & dividing fractions
Common denominators, improper fractions, mixed numbers. Four worked operations and a 4-question quiz.
Open guide →Calculating total square feet
Area of rectangles, triangles, circles, and composite shapes like L-shaped rooms.
Open guide →Calculating total cubic feet
Volume of boxes and cylinders, plus the unit conversions (1 cu ft = 1,728 cu in ≈ 7.48 gallons) plumbers use daily.
Open guide →Perimeter of shapes and objects
Rectangles, triangles, circles (circumference), and composite outlines like L-shaped decks.
Open guide →Start with the free check-up
Score high. Get called sooner. This test puts you on the Applicant Waiting List. Miss the cutoff and you typically wait 6 to 12 months. Start with the free check-up.
Try 18 questions free