PCN NDT Ultrasonic Testing Level 2 Exam study guide
PCN NDT Ultrasonic Testing Level 2 Exam · Work through your exam, one topic at a time.
The PCN NDT Ultrasonic Testing Level 2 credential is issued under the PCN certification framework administered by The British Institute of Non-Destructive Testing (BINDT), whose registered office is Midsummer House, Riverside Way, Bedford Road, Northampton NN1 5NX, UK. PCN is a personnel certification scheme: a Level 2 certificate attests that the holder has been examined and found competent to perform ultrasonic testing to the standard required by the certification scheme, and it is used by inspectors, technicians and supervisors working in manufacturing, construction, pressure equipment, aerospace and in-service inspection who need third-party evidence of competence. Candidates typically reach Level 2 after gaining Level 1 experience or completing an approved training course, and are examined on ultrasonic theory, equipment and probe selection, calibration and reference blocks, defect detection, sizing and characterisation, acceptance criteria, codes and standards, and the recording and reporting of results. Preparation should combine a structured training course with hands-on practice on calibrated equipment and known reference reflectors, close study of the applicable standards and the PCN scheme documents, and repeated mock examinations under timed conditions. Topics on this exam: Ultrasonic Testing Level 2. The PCN NDT Ultrasonic Testing Level 2 Exam study guide has 1 section and about 485 words.
01Ultrasonic Testing Level 2
The PCN/ISO 9712 Level 2 UT domain tests whether you can select a technique, set up and calibrate equipment, perform and supervise scanning, distinguish relevant from non-relevant indications, and report results against a specified acceptance standard. It assumes Level 1 competence and adds technique responsibility: probe selection, sensitivity setting, transfer correction, and interpretation within a written procedure. Probe choice follows geometry and discontinuity orientation: frequency sets wavelength and resolution; crystal size and frequency set near-field length and beam spread; angle is chosen so the beam intersects the expected fusion line or defect at a useful angle. For a circular crystal, near-field length N = D²f/(4c) and the half-angle to the –6 dB edge is approximately sin θ = 0.51λ/D.
485 words, about 2 min