NDT Certification and Practices 4 — Questions and Answers
Question 1: Under SNT-TC-1A, the minimum experience hours for Level II certification in UT are applied after achieving which level?
- Level I experience hours only
- Level I hours plus additional Level II hours as specified in the Written Practice (Correct answer)
- No experience is required at Level II
- Only training hours count, not field hours
Correct answer: Level I hours plus additional Level II hours as specified in the Written Practice
SNT-TC-1A specifies minimum experience hours for Level II that are cumulative and include hours accumulated at Level I plus additional hours at Level II.
Question 2: Which exam component is NOT typically required for ASNT Level III certification?
- Basic exam covering math, materials, and NDT fundamentals
- Method-specific exam
- Practical demonstration exam on actual hardware (Correct answer)
- Specific method exam for each method being certified
Correct answer: Practical demonstration exam on actual hardware
ASNT Level III certification requires a Basic exam and Method exam(s) but does not typically include a hands-on practical demonstration exam.
Question 3: Which of the following is an acceptable reason to revoke an NDT technician's certification?
- Changing employers
- Falsification of records or demonstrated incompetence (Correct answer)
- Requesting recertification early
- Moving to a different NDT method
Correct answer: Falsification of records or demonstrated incompetence
Certifications may be revoked for cause, including falsification of records, misrepresentation, or demonstrated inability to perform required tasks competently.
Question 4: What does 'specific' knowledge in NDT Level II refer to?
- Knowledge of the employer's administrative policies
- Knowledge of the particular equipment, codes, and procedures used on the job (Correct answer)
- Knowledge shared across all NDT methods
- Knowledge of radiation safety only
Correct answer: Knowledge of the particular equipment, codes, and procedures used on the job
Specific knowledge refers to job-specific understanding of the equipment, materials, product forms, codes, and procedures applied in the technician's actual work scope.
Question 5: When a procedure or code change occurs, what action regarding NDT personnel certification is typically required?
- No action is needed until the next regular recertification
- Personnel may need supplemental training and demonstration of continued qualification (Correct answer)
- All personnel must be fully recertified from Level I
- Only the Level III must retrain
Correct answer: Personnel may need supplemental training and demonstration of continued qualification
Significant procedural or code changes may require supplemental training and documented verification that personnel remain qualified to perform under the new requirements.
Question 6: Which of the following best defines 'calibration' in NDT practice?
- Adjusting equipment settings to a known reference standard to ensure accurate measurements (Correct answer)
- Verifying the grade of the test material
- Training personnel on new equipment
- Selecting the correct NDT method for an application
Correct answer: Adjusting equipment settings to a known reference standard to ensure accurate measurements
Calibration is the process of adjusting or verifying NDT instrument settings against a traceable reference standard to ensure measurement accuracy and consistency.
Question 7: What is the purpose of a 'qualification block' or 'reference standard' in NDT?
- To store NDT equipment during transport
- To provide a known, controlled discontinuity for verifying equipment sensitivity and calibration (Correct answer)
- To protect inspectors from radiation exposure
- To measure the hardness of test materials
Correct answer: To provide a known, controlled discontinuity for verifying equipment sensitivity and calibration
Reference standards contain known artificial reflectors or discontinuities that allow technicians to set and verify equipment sensitivity and system performance before testing.
NDT Certification and Practices 4
Under SNT-TC-1A, the minimum experience hours for Level II certification in UT are applied after achieving which level?