1. Topics from the Technologist’s Level examination
10% of the examIdentify weak areas and improve with focused review.
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Pass the GDTP (Y14.5) Geometric Dimensioning & Tolerancing Professional Certification - 1994 Senior Level exam with confidence.
Start with a free GDTP practice test and build exam-ready confidence for the GDTP (Y14.5) Geometric Dimensioning & Tolerancing Professional Certification - 1994 Senior Level exam.
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2. Datum Selection
20% of the examIdentify weak areas and improve with focused review.
Start Practicing3. General Tolerancing and Related Principles, Tolerance Calculation and Appendices
40% of the examIdentify weak areas and improve with focused review.
Start Practicing4. Application of Modifiers in Feature Control Frames
15% of the examIdentify weak areas and improve with focused review.
Start Practicing5. Composite Positional Tolerancing
15% of the examIdentify weak areas and improve with focused review.
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Frequently asked questions
Straight answers about the GDTP exam, the questions, pricing, the free trial, and how this fits your prep.
The GDTP exam spans 5 domains - Topics from the Technologist’s Level examination (10%), Datum Selection (20%), General Tolerancing and Related Principles, Tolerance Calculation and Appendices (40%), Application of Modifiers in Feature Control Frames (15%), and Composite Positional Tolerancing (15%). Every practice question maps to one of them, so you train on exactly what's tested.
The GDTP (Y14.5) Geometric Dimensioning & Tolerancing Professional Certification - 1994 Senior Level (GDTP) exam has 150 questions and is completed in 6 hours. Our timed practice tests mirror that length and pacing, so exam day feels familiar.
No - and that matters. These are original practice questions written to mirror the style, difficulty, and domain coverage of the GDTP exam blueprint. We never distribute actual exam content, so practicing here keeps you fully compliant with official exam policies.
No. GDTP Exam Prep is an independent study resource for GDTP (Y14.5) Geometric Dimensioning & Tolerancing Professional Certification - 1994 Senior Level (GDTP). It is not affiliated with, sponsored by, or endorsed by the official certifying body or exam administrator.
Every paid plan unlocks the full bank of 1,000+ practice questions covering all 5 GDTP domains - Topics from the Technologist’s Level examination (10%), Datum Selection (20%), General Tolerancing and Related Principles, Tolerance Calculation and Appendices (40%), Application of Modifiers in Feature Control Frames (15%), and Composite Positional Tolerancing (15%). You can practice the whole bank, filter by domain, or run a timed, domain-balanced exam simulation.
Yes - the bank is maintained against the current exam outline, and questions are revised when the exam changes.
No honest practice platform can guarantee a pass. What realistic practice does is show you - before exam day - exactly which domains are weak, and give you the repetitions to fix them. That's the difference between hoping you're ready and knowing where you stand.
Yes. You get 10 free sample questions with instant feedback - no credit card and no account required.
The free sample shows you the question quality. Paid plans unlock the full 1,000+ question bank, exam-style practice modes, mistake review, and - on Fast Track and Pass Confidence - progress analytics that show your readiness by domain.
No. Every plan is a single one-time payment for a fixed access window - 48 hours, 7 days, or 6 weeks. There is no auto-renewal and no recurring billing.
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For most countries, the price you see is exactly what you pay - tax is already included. Where local law requires it to be added separately, it's shown clearly at checkout before you pay, so there are never any surprise fees.
Access is instant after payment and runs for your plan's full window from that moment. When the window ends, your local progress stays on your device - you can buy another window any time and pick up where you left off.
Yes - the whole platform is mobile-first: practice, mistake review, and analytics all work on any phone, tablet, or laptop with a browser. Nothing to install.
Every answer feeds your per-domain accuracy, readiness score, and weak-area list. Instead of re-reading everything, you drill the domains that are actually costing you points - that's what moves a score in days, not months.
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"took this twice before i actually studied right. the datum selection questions on this site were the thing that finally made it click for me. passed on the second try, barely, but i passed."
"honestly almost didnt bother studying, figured 15 years on the floor would carry me. it didnt, especially on composite positional tolerancing, i kept missing the same type of question over and over. going back thru the mistake review section every night for like two weeks is what turned it around."
"gdtpexam.com got me thru the tolerance calculation part which is basically half the exam anyway. did the full length mocks on weekends, timed myself, felt way less panicked walking into the real six hours. no regrets, would do it the same way again."