NDT Study Guide Apps

CWI Study Guide App

Quality Study Guide Apps

NDT Study Guide Apps for iPhone and iPad

Radiation Safety Test Prep for radiographer trainees, assistant radiographers, and RSOs

When you're studying for an industrial radiographer radiation safety exam, it helps to practice the topics that exam actually covers. I wrote these questions as an ASNT NDT Level III so you can work through Gamma, X-ray, or both, and then see why an answer is right.

  • 590 practice questions: 280 for Gamma, 310 for X-ray, or the full set together.
  • Ten categories, including personnel safety and radiation protection, survey instruments, radiation-area surveys, survey reports, safety and health, biological effects of radiation, exposure devices, emergency procedures, storage and shipment of devices and sources, and state and federal regulations.
  • Study mode walks you through the explanation as you go. Test mode scores you at the end and breaks the result down by category.
  • Review Missed Questions shows the answer you picked, the correct answer, and why.

Price: $14.99, one-time purchase (not a subscription).

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Get it on Google Play

Liquid Penetrant Study Guide for PT Level 1, Level 2, and Level 3 exam prep

When I sit down with someone preparing for a liquid penetrant testing exam, we start by finding the weak spots: surface prep, penetrants, washing, developers, and inspection technique. I built this study guide as an ASNT NDT Level III so you can drill Level 1, Level 2, or Level 3 questions and then read the reasoning, not just look at a score.

  • 550+ practice questions covering Level 1, Level 2, and Level 3. The Google Play listing gives an exact count of 555, split as 246 (Level 1), 145 (Level 2), and 164 (Level 3).
  • Seven topics: Equipment, Surface Preparation, Penetrants, Washing and Cleaning, Developers, Inspections, and Techniques.
  • A practice mode with an explanation after each question (Study mode on the App Store; Quiz mode on Google Play), plus Test mode with a score and a breakdown by topic.
  • Review Missed Questions shows your answer, the correct answer, and why.
  • The App Store listing also describes this as a fit for people preparing for Level 3, NAS 410, or SNT-TC-1A employer exams.

Price: $14.99, one-time purchase (not a subscription).

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Get it on Google Play

Matching online course: PT Level I & II Online Course – SNT-TC-1A

Magnetic Particle Study Guide for MT Level 1, Level 2, and Level 3 exam prep

Magnetic particle testing has a lot of moving parts: current, technique, media, interpretation, and demagnetization. I wrote this study guide as an ASNT NDT Level III so you can practice Level 1, Level 2, or Level 3 questions, then go back through what you missed and see why the right answer is right.

  • 600+ practice questions covering Level 1, Level 2, and Level 3. The Google Play listing gives an exact count of 620, split as 217 (Level 1), 235 (Level 2), and 168 (Level 3).
  • Ten topics: Magnetic Principles, Magnetizing Current, Magnetizing Techniques, Test Media & Materials, Equipment, Interpretation & Evaluation, Discontinuities, Demagnetization, Standards & Certification, and Safety & Health.
  • A practice mode with an explanation after each question (Study mode on the App Store; Quiz mode on Google Play), plus Test mode with a score and a breakdown by topic.
  • Review Missed Questions shows your answer, the correct answer, and why.
  • The App Store listing also describes this as a fit for people preparing for Level 3, NAS 410, or SNT-TC-1A employer exams.

Price: $14.99, one-time purchase (not a subscription).

Get it on the App Store

Get it on Google Play

Matching online course: Magnetic particle testing Level I & II online course

Ultrasonic Study Guide for UT Level 1, Level 2, and Level 3 exam prep

Ultrasonic testing covers a lot of ground, from principles and calibration to weld evaluation and advanced techniques. I wrote these practice questions as an ASNT NDT Level III so you can work at Level 1, Level 2, or Level 3, then review what you missed and read the explanation.

  • 641 practice questions covering Level 1, Level 2, and Level 3. The Google Play listing splits that as 230 (Level 1), 179 (Level 2), and 232 (Level 3).
  • Ten categories: Principles and Theory; Equipment and Materials; Techniques and Methods; Standardization and Calibration; Evaluation of Base Material; Evaluation of Welds and Bonded Structures; Discontinuity Detection and Evaluation; Variables Affecting Test Results; Advanced Techniques (the App Store listing names phased array and TOFD here); and Procedures and Reporting.
  • Study mode with instant feedback, or Test mode with a score and a category breakdown.
  • Review Missed Questions shows your answer, the correct answer, and why.
  • The App Store listing says the topics are aligned with the SNT-TC-1A and NAS410 bodies of knowledge. On iOS, a session can run from 10 to 150 questions.

Price: $14.99, one-time purchase (not a subscription).

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Get it on Google Play

Visual Testing study guide for VT Level 1, Level 2, and Level 3 exam prep

Visual testing is more than looking at a part. Lighting, optics, tools, and the acceptance standard all matter. I wrote these practice questions as an ASNT NDT Level III so you can study at Level 1, Level 2, or Level 3 and then see why an answer is right.

  • 713 practice questions covering Level 1, Level 2, and Level 3. The Google Play listing splits that as 238 (Level 1), 235 (Level 2), and 240 (Level 3).
  • Ten categories: Vision Science & Human Factors; Light, Optics & Contrast; VT Equipment & Tools; Materials & Discontinuity Recognition; Inspection Techniques & Standardization; Evaluation, Interpretation & Reporting; Codes, Standards & Specifications; Applications by Industry & Product Form; Procedures, Documentation & Safety; and Personnel Qualification & Certification.
  • Study mode with instant feedback, or Test mode with a score and a category breakdown.
  • Review Missed Questions shows your answer, the correct answer, and why.
  • The App Store listing also mentions coverage of ASME Section V Article 9, AWS D1.1, API codes, borescopes, weld gauges, and lighting and vision requirements, and says the topics are aligned with SNT-TC-1A and NAS410.

Price: $14.99, one-time purchase (not a subscription).

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Get it on Google Play

Matching online course: VT Level I & II Online Course – SNT-TC-1A

Radiography Study Guide for RT Level 1, Level 2, and Level 3 exam prep

If you're preparing for a radiographic testing exam, it helps to practice by level and by topic, then go back through the questions you missed. I built this study guide so you can work in Study mode or Test mode and read a plain-language explanation with each question.

  • Questions are organized for Level 1, Level 2, and Level 3. Google Play lists 547 questions (169 at Level 1, 245 at Level 2, and 133 at Level 3). The App Store listing does not state a question count.
  • You can study by topic. On the App Store, those topics include radiation physics and materials, exposure devices and sources, radiographic safety, film and darkroom processing, image quality, exposure techniques, and discontinuities and evaluation. On Google Play, there are nine categories, including digital and computed radiography and NDT fundamentals, codes, and procedures.
  • Study mode gives feedback as you go. Test mode scores you at the end.
  • After each test, you can review missed questions and see how you did by category.

Price: $14.99, one-time purchase (not a subscription).

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Get it on Google Play

Eddy Current Test Prep for ET Level 1, Level 2, and Level 3 exam prep

Eddy current testing asks you to connect theory with the signal in front of you: impedance plane analysis, depth of penetration, probe choice, and how you interpret the display. I wrote these practice questions as an ASNT NDT Level III so you can study at Level 1, Level 2, or Level 3 and then read why the correct answer is correct.

  • 584 practice questions, with 10 categories at each level: Electromagnetic Theory & Physics; Signal Parameters & Test Variables; Probes & Sensing Elements; Instrumentation & Equipment; Calibration & Standardization; Scanning Techniques & Procedures; Signal Interpretation & Display; Flaw Sizing & Accept/Reject Criteria; Applications; and Codes, Standards & Professional Practice.
  • Study mode with instant feedback, or Test mode with a score and a category breakdown. Sessions can run from 10 to 150 questions.
  • Review Missed Questions shows your answer, the correct answer, and why.
  • The listing also mentions coverage of impedance plane analysis, standard depth of penetration, probe selection, tubing inspection, conductivity sorting, ECA, and RFT, and says the topics are aligned with SNT-TC-1A and NAS410.

Price: $14.99, one-time purchase (not a subscription). iOS only.

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CWI Part A Test Prep for welders moving into inspection, QC technicians, and Part A candidates

The Certified Welding Inspector Part A exam covers a wide range of fundamentals, from weld symbols and metallurgy to discontinuities and visual inspection. I built this study guide as an ASQ CMQ/OE and ASNT NDT Level III so you can drill the Part A topics and then see why an answer is right.

  • 500+ practice questions covering all 11 Part A topics: Inspector Responsibilities; Safe Practice; Metal Joining Processes; Metal Cutting Processes; Weld Joint Geometry and Symbols; Documents and Qualification; Material Properties and Testing; Metric Practice; Welding Metallurgy; Weld & Base Metal Discontinuities; and Visual Inspection & NDE.
  • Study mode gives you the explanation as soon as you answer correctly.
  • Test mode lets you run a scored session of 10 to 100 questions, then see a breakdown by topic.
  • Review Missed Questions shows your answer, the correct answer, and why.

Price: $14.99, one-time purchase (not a subscription). iOS only.

Get it on the App Store

Matching online course: CWI Refresher – Exam Prep Course (Part A)

AMS Level 3 is an independent training provider and is not affiliated with or endorsed by the American Welding Society (AWS). CWI is a certification of the American Welding Society.

CQE Study Guide for quality engineers, technicians, and managers preparing for the CQE exam

If you're preparing for the Certified Quality Engineer exam, it helps to practice against the Body of Knowledge and then see where your score is thin. I built this study guide so you can work the questions, read the explanation, and go back through what you missed.

  • 425 practice questions mapped to the Body of Knowledge.
  • The listing covers these areas: Certification Overview; Management & Leadership; Quality Systems; Product, Process and Service Design; Product and Process Control; Testing and Measurement; Continuous Improvement; Quantitative Methods; Statistical Tools; Statistical Applications; and Risk Management.
  • Study mode with instant feedback, or a timed Test mode. Sessions can run from 10 to 150 questions, and you can pick any combination of categories.
  • Review Missed Questions shows your answer, the correct answer, and why. A category breakdown helps you find weak spots.
  • The listing also mentions practice relevant to SPC, DOE, FMEA, reliability, and measurement systems.

Price: $14.99, one-time purchase (not a subscription). iOS only.

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CQA Study Guide for internal auditors, lead auditors, supplier auditors, and quality professionals preparing for the CQA exam

The Certified Quality Auditor exam is built around a defined Body of Knowledge, from audit fundamentals to program management and quality tools. I wrote these practice questions so you can study those areas, then review what you missed and read why the correct answer is correct.

  • 490 practice questions covering all five Body of Knowledge areas: Auditing Fundamentals; Audit Process; Auditor Competencies; Audit Program Management and Business Applications; and Quality Tools and Techniques.
  • Study mode with instant feedback, or Test mode with scoring. Sessions can run from 10 to 150 questions, and you can pick any combination of categories.
  • Review Missed Questions shows your answer, the correct answer, and why. A category breakdown helps you find weak spots.
  • The listing also notes this can support people strengthening ISO 19011 and ISO 9001 audit skills.

Price: $14.99, one-time purchase (not a subscription). iOS only.

Get it on the App Store

Matching online course: CQA Refresher – Exam Prep Course