NDT - Non-Destructive Testing NDT Certification and Practices Questions and Answers

Question 1

An NDT Level I technician performs an ultrasonic thickness test on a pipe following a detailed procedure.
The technician obtains a reading that is significantly thinner than expected and is outside the normal range described in the instructions.
According to ASNT's Recommended Practice No.
SNT-TC-1A, what is the most appropriate action for the Level I technician to take?

Accepted Answer

Document the reading, report the finding to the supervising Level II or Level III technician, and ask for guidance.

Answer

Independently declare the pipe as defective and recommend its immediate removal from service.

Answer

Disregard the anomalous reading, assuming it is an instrument error, and continue testing other locations.

Answer

Adjust the instrument's calibration settings until a reading within the expected range is achieved.

Question 2

An employer wishes to establish an in-house NDT personnel qualification and certification program compliant with ASNT's Recommended Practice No. SNT-TC-1A. Who holds the ultimate responsibility for creating and approving the company's 'Written Practice'?

Accepted Answer

The employer, who typically delegates the task to a qualified NDT Level III.

Answer

A third-party NDT training organization.

Answer

The American Society for Nondestructive Testing (ASNT).

Answer

The senior NDT Level II technician on staff.

Question 3

Which of the following is a common near-vision acuity requirement for NDT personnel as specified by guidelines like ASNT SNT-TC-1A?

Accepted Answer

The ability to read Jaeger Number 2 type and size letters at a distance not less than 12 inches (30.5 cm).

Answer

The ability to read Jaeger Number 5 type and size letters at a distance of 24 inches (61 cm).

Answer

A one-time test for color vision differentiation at the beginning of an inspector's career.

Answer

The ability to pass a far-vision test without the use of corrective lenses.

Question 4

An NDT Level II inspector is performing a magnetic particle inspection on a critical component and is pressured by the production supervisor to sign off on the part quickly to meet a shipping deadline. The inspector has not fully completed the evaluation as required by the written procedure. What is the most ethical course of action?

Accepted Answer

Politely refuse to sign off and insist on completing the full inspection as required by the procedure, explaining that safety and quality cannot be compromised.

Answer

Sign off on the part and complete the inspection later when time permits.

Answer

Perform a quick, partial inspection and accept the part based on that limited data.

Answer

Ask the production supervisor to sign off on the inspection report instead.

Question 5

Within the context of an employer-based certification program such as one based on SNT-TC-1A, what is the fundamental difference between 'qualification' and 'certification'?

Accepted Answer

Qualification is the demonstration of skills, knowledge, and experience, while certification is the employer's written testimony confirming that qualification has been met.

Answer

Qualification is the formal written document, while certification is the process of training and gaining experience.

Answer

Qualification is performed by a third-party agency, while certification is an internal company process.

Answer

The terms are interchangeable and hold the same meaning in all NDT certification programs.

Question 6

Which of the following responsibilities is uniquely assigned to a certified NDT Level III?

Accepted Answer

Developing, qualifying, and approving NDT procedures and techniques.

Answer

Performing on-the-job training for Level I personnel and trainees.

Answer

Setting up, standardizing, and calibrating NDT equipment.

Answer

Interpreting and evaluating test results according to applicable standards.