NDT Level II Open Book Exam: What You Can Bring 2026

What "Open Book" Actually Means for the ASNT Specific Exam

The phrase "open book exam" sounds reassuring until you realize what it actually means in the context of ASNT NDT Level II certification. Candidates often imagine arriving with annotated code books, color-tabbed standards, and personal cheat sheets. The reality is far more controlled-and misunderstanding it before exam day can derail an otherwise well-prepared candidate.

Under the ASNT CP-189 and ANSI/ASNT CP-105 framework, the Specific exam is classified as open book in a very specific sense: ASNT provides a single procedure document at the testing location, and you are permitted to reference that document during the 40-question exam. That is the entirety of what "open book" means here. Nothing you bring from home is permitted.

This structure exists because the Specific exam simulates real NDT practice: in the field, a Level II technician works from a written procedure. The exam tests whether you can apply that procedure to inspection scenarios, not whether you have memorized it. Understanding this intent helps you study smarter for both halves of the certification.

The Procedure Document: Your Only Permitted Reference

The procedure document provided during the Specific exam is an industry sector NDT procedure prepared by ASNT. Candidates may sit for either the General Industry or Pressure Equipment sector, and the document reflects that sector's requirements and vocabulary.

This document is not something you can preview at home in advance in its exact final form, but ASNT publishes the topical outlines in ANSI/ASNT CP-105 so that you know precisely which procedure sections will govern the exam questions. The document will typically include:

• Scope and applicable materials or components
• Personnel qualification requirements relevant to Level II
• Equipment specifications and calibration requirements
• Technique parameters and setup instructions
• Acceptance and rejection criteria
• Recording and reporting requirements

Questions on the Specific exam are written directly against this document. Many questions will ask you to locate a specific acceptance criterion, identify the correct calibration step sequence, or determine whether a given indication meets the procedure's reporting threshold. Speed in navigating the document matters. Candidates who have never practiced reading a formal NDT procedure under time pressure consistently underestimate this challenge.

What You Cannot Bring Into the Testing Room

The list of prohibited materials is more important to understand than what is allowed, because the allowed list is short: the ASNT-provided procedure document and the available calculator. Everything else stays outside.

Testing takes place at Pearson VUE test centers or ASNT Authorized Exam Centers (AECs). Both venues enforce these materials policies consistently. If you are testing at a Pearson VUE location, expect standard Pearson security protocols: photo ID check, palm vein scan, emptied pockets, and locker storage for personal belongings before you enter the testing room.

Calculator Access and When You Will Actually Use It

A calculator is available during the ASNT NDT Level II exam. This is explicitly noted in the cert facts, and it matters because several domains across methods involve numerical computation. Knowing when and why you will reach for the calculator helps you allocate time intelligently across the 40 Specific exam questions.

The calculation-heavy areas vary by NDT method, but they commonly include:

• Ultrasonic Testing (UT): Velocity calculations, beam angle geometry, near-field distance, dB gain/attenuation conversions
• Radiographic Testing (RT): Exposure calculations, geometric unsharpness (Ug), source-to-film distance ratios
• Eddy Current Testing (ET): Frequency selection, depth of penetration (standard depth), phase angle analysis
• Magnetic Particle Testing (MT): Amperage calculations for circular and longitudinal magnetization

For methods like Liquid Penetrant Testing (PT) and Visual Testing (VT), calculation demands are lighter, but you may still encounter unit conversions or timing requirements embedded in procedure questions. Never assume a method is calculation-free without reviewing its specific domain weights and topical outline under ANSI/ASNT CP-105.

What the Specific Exam Tests: Domain-by-Domain Breakdown

The Specific exam's 40 questions are distributed across the same six domains used in the General exam, but the weighting and question depth shift significantly. Where the General exam tests your knowledge of principles and theory, the Specific exam tests your ability to apply those principles through the lens of the provided procedure.

General Exam vs. Specific Exam: Two Very Different Challenges

A candidate who has only focused on method theory will be underprepared for the Specific exam's procedural application demands. Equally, a candidate who has drilled procedures without mastering fundamentals will struggle with the closed-book General exam. Both parts must be prepared for independently.

Note that the composite passing requirement is 80% overall per SNT-TC-1A 2020, with individual minimums of 70% on the General and 80% on the Specific. This means a strong Specific score can support a General exam that lands near its minimum-but both individual thresholds must still be met independently. For a full breakdown of what you need to qualify to sit for these exams, see NDT Level II Prerequisites: Training and Experience Hours 2026.

How to Use the Procedure Document Without Wasting Time

Most candidates who underperform on the Specific exam do not fail because they lack knowledge-they fail because they waste time searching for information they should be able to locate in under 30 seconds. With 40 questions and a finite time window, every minute spent flipping through procedure sections costs you confidence and accuracy on subsequent questions.

The preparation strategy that actually works has three components:

1. Build a mental map of how ASNT procedures are structured. Standard ASNT-style procedures follow predictable section sequences: scope, references, definitions, personnel, equipment, surface preparation, technique, calibration, examination, evaluation, documentation. This structure is consistent enough that you should be able to predict where a specific answer will appear.
2. Practice locating specific types of information under time pressure. Using a similar ASNT-format procedure, time yourself finding acceptance criteria, calibration intervals, and recalibration triggers. Reduce your locate-and-read time on those sections before exam day.
3. Treat the procedure as confirmation, not as discovery. You should know the answer to most Specific exam questions from your study. Use the procedure to confirm your answer or eliminate an ambiguous option-not to read for the first time.

Practicing with realistic multiple-choice questions is the most direct way to identify which domain areas still require deeper study. The NDT Level II practice test platform provides method-specific questions formatted to match the ASNT exam structure, allowing you to identify weak domains before exam day rather than during it.

Method-by-Method Differences in Open Book Content

The NDT Level II certification covers multiple methods-UT, MT, PT, RT, VT, and ET each require separate General and Specific exams. The open-book procedure document varies in complexity and calculation density by method. Understanding these differences shapes how you should divide your preparation time between closed-book fundamentals and open-book procedure navigation.

• Ultrasonic Testing (UT): The UT Specific exam is among the most calculation-intensive. Beam geometry, dB calculations, and velocity determinations appear frequently. The procedure document will specify calibration block configurations that require applied math.
• Radiographic Testing (RT): RT procedures are dense with exposure variables. Geometric unsharpness and density requirements appear in both the procedure and questions. The safety section (Domain 6) carries particular weight given radiation hazards.
• Magnetic Particle Testing (MT): MT procedures specify amperage ranges for different material configurations. Calculation questions involve Hall effect or direct/indirect magnetization parameters. Acceptance criteria for indications are clearly tabulated in the procedure document.
• Liquid Penetrant Testing (PT): PT procedures are comparatively straightforward in structure, but interpretation questions on relevant versus non-relevant indications require careful procedure-based reasoning rather than calculation.
• Eddy Current Testing (ET): ET procedures include frequency selection criteria and phase angle reference standards. The procedure's equipment section will specify reference standards that calibration questions directly reference.
• Visual Testing (VT): VT procedures specify lighting requirements, distance and angle limitations, and tool qualifications. Interpretation questions focus on accept/reject criteria for specific discontinuity types listed in the document.

Each method's domain weights vary under ANSI/ASNT CP-105, so reviewing the topical outline for your specific method is essential-not just a general approach to NDT study. The NDT Level II practice test platform organizes questions by method and domain so you can target the areas where your specific method concentrates exam weight.

Preparing Specifically for an Open Book Format

Because most of your NDT Level II study time will rightly go toward closed-book General exam mastery, it is tempting to under-schedule preparation for the Specific exam's open-book component. Resist this. The Specific exam carries an 80% minimum-higher than the General exam-and its questions require a different type of readiness.

A practical way to schedule your final preparation weeks is to treat them as two parallel but distinct tracks: fundamentals review for the General exam, and procedure application practice for the Specific exam. Here is how that division looks in practice during the final three weeks before your exam date:

For candidates still confirming whether their training hours and work experience qualify them to sit for the exam, the complete prerequisites are detailed in NDT Level II Prerequisites: Training and Experience Hours 2026. Meeting the eligibility requirements-including the employer-administered practical exam and vision acuity check-must happen before registration, and these are separate from the ASNT-administered written exam covered here.

Once you are registered through ASNT Certification Services LLC and your Pearson VUE or AEC appointment is confirmed, your preparation should shift from accumulating knowledge to performing under realistic conditions. The single most predictive factor for open-book exam performance is not how much you know, but how efficiently you can locate and apply procedural information within a time-constrained environment. Practice with method-specific questions on the NDT Level II exam prep platform to build that efficiency before it counts.

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