GDTP Senior: practise choosing the control, not just reading it.
The Senior exam asks you to select and apply GD&T: pick the datum reference frame, choose the control, work the boundary. The ASME GDTP Complete Exam Kit gives you 445 original Senior questions, three full Senior simulators and 7 Senior drills, alongside everything for Technologist.
Your GDTP kit includes both levels. Open the GDTP practice area and choose a Senior simulator or drill.
Who Senior is for
Senior is for engineers, designers and inspectors who already work with GD&T. ASME asks for 36 months of documented GD&T experience. You do not need the Technologist certificate first.
Where Technologist checks that you can read and interpret a drawing, Senior checks that you can make the decisions behind it: which datum features to use and in what order, which control fits the function, and what the resulting boundaries allow.
How the Senior exam differs from Technologist
| Technologist | Senior | |
|---|---|---|
| Questions | 150, closed book | 150, closed book |
| Time | Up to 4 hours | Up to 6 hours |
| Experience | None required | 36 months of GD&T |
| Pass | 74% overall and at least 50% in every section, at both levels | |
Section weights
ASME publishes the weights. Senior moves weight from the fundamentals to datum reference frames and profile; position stays a quarter of the exam.
| Section | Technologist | Senior |
|---|---|---|
| Definitions, Rules, Tolerancing and Symbology (Sections 3 to 6) | 25% | 10% |
| Datum Reference Frames (Section 7) | 20% | 30% (heavier) |
| Form (Section 8) | 5% | 5% |
| Orientation (Section 9) | 5% | 5% |
| Position (Section 10) | 25% | 25% |
| Profile (Section 11) | 15% | 20% (heavier) |
| Runout (Section 12) | 5% | 5% |
What the kit gives you for Senior
- Three full Senior simulators. 150 questions each, timed at 6 hours, built to the Senior section weights and a Senior difficulty mix, with the 74% / 50% pass check after you submit.
- 7 Senior section drills. One per exam section, 25 or 20 questions each, so you can work on datum reference frames, position or profile on their own.
- 445 original Senior questions. Written to Y14.5-2018 and independently reviewed: each batch was checked by a second reviewer who did not write it, with every number recomputed. Many are built on a drawing, a feature control frame or a table of inspection data.
- Question-bank practice at Senior level. Filter by section and difficulty and practise with feedback after every answer.
- Shared study material. The illustrated study notes (25 chapters, 183 pages, about 62,000 words), 60 worked examples, 60 calculation drills, 420 flashcards, 32 figures and 86 drawings, the 30-day plan and the readiness tracker cover both levels.
You buy the kit once and get both levels. There is no separate Senior product.
Senior topics in the study notes
Small previews. In the kit every figure is full size, inside the notes and on the flashcards.
The Complete Exam Kit
ASME GDTP Complete Exam Kit
$39Technologist and Senior simulators, drills, the question bank, notes, worked examples, flashcards, plan and tracker. Online, in your account, here on CertCrafter.
Price in USD. Local currency and any applicable tax are shown at checkout. Secure checkout by Dodo Payments. By buying you accept the personal licence in our Terms and the refund policy.
How access works
All paid items are online and view-only in your logged-in account. Questions and drawings are served one at a time, and every drawing and page carries your details. Accounts are for one person.
What we promise
We do not promise that you will pass. We promise original Senior questions written to Y14.5-2018 and an explanation for every option.
GDTP Senior FAQ
Do I need to buy anything extra for Senior?
No. There is one ASME GDTP Complete Exam Kit. Buying it once, for $39, opens both the Technologist and the Senior material in your account. If you already own the GDTP kit or the original GDTP practice tests, the Senior simulators and drills are already in your account.
Who can sit the Senior exam?
ASME asks for 36 months of documented GD&T experience for the Senior level. The Technologist certificate is not a prerequisite.
How is the Senior exam scored?
The same way as Technologist: at least 74% overall and at least 50% in every section. Both conditions must be met.
Are these the real exam questions?
No. Every question is original and written to Y14.5-2018. We do not use exam content and do not know the actual exam questions.
Will I pass if I finish everything?
We cannot promise that, and no honest provider can. The kit gives you realistic Senior practice and an explanation for every option.
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