CRI Study Guide 2026
Everything you need to pass the CRI exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
CRI exam key facts
- Each of the three AWS CRI exam parts (General Knowledge, Code Knowledge and Practical) has a 3-hour time limit. Source
- To pass the AWS CRI exam, candidates must score at least 70% on each of the three parts and average at least 80% across all three. Source
- AWS allows CRI candidates up to three reexaminations within three years of the original test date, and failed parts can be retaken alone if the overall average is still at least 80%. Source
- The AWS Certified Radiographic Interpreter (CRI) certification is valid for three years. Source
📋 CRI Exam Format at a Glance
📚 CRI Topics to Study (24)
✍️ Sample CRI Questions & Answers
1. Which welding defect occurs due to improper cooling rates?
Cracking in welds can often be attributed to improper cooling rates, especially when the metal cools too quickly. Rapid cooling can induce high residual stresses and promote the formation of brittle microstructures, such as martensite, which are highly susceptible to cracking. This is particularly true for hydrogen-induced cracking or solidification cracking.
2. What condition defines a 'High Radiation Area' under NRC regulations?
A High Radiation Area is defined as any area where dose rates can exceed 1 mSv/hr (100 mrem/hr) at 30 cm from the source or surface.
3. What role does continuous improvement play in digital radiography systems for CRI certified professionals?
Continuous improvement is fundamental to professional practice in digital radiography systems, involving regular evaluation, feedback integration, and process enhancement to maintain high standards.
4. Which defect occurs when the weld metal does not properly fuse with the base metal?
Lack of fusion occurs when the molten weld metal fails to properly coalesce and bond with the base metal or with previous weld passes. This creates unbonded areas within the weld joint, significantly reducing the weld's strength and integrity. It is a critical defect that can lead to structural failure.
5. What is the primary biological effect of concern from low-level, chronic radiation exposure to workers?
Stochastic effects like cancer induction are the primary concern for chronic low-level occupational exposure, with no threshold dose.
6. What is the most effective way to measure success in radiation safety & protection within CRI professional practice?
Effective measurement combines multiple data sources — quantitative metrics, qualitative assessments, and stakeholder feedback — all aligned with clearly defined objectives for a comprehensive evaluation.
🎯 Free CRI Practice Tests
📖 CRI Guides & Articles
What Practice Test Geeks adds beyond an AI chat for CRI
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length CRI mock exam — 100 questions in 180 minutes with a 70% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed CRI question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable CRI cheat sheet you can print or save as a PDF.
- CRI flashcards built from the same question bank.
- Free CRI practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- pubs.aws.org — Exam information · verified Oct 2026
- aws.org — Test delivery, passing score, renewal, retake policy, time limit, score validity, fees, retake fee · verified Oct 2026
- aws-p-001-delivery.sitecorecontenthub.cloud — Exam format · verified Oct 2026