Paut-Specific Exam Paut SP002 [PDF]

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PHASED ARRAY ULTRASONIC TESTING –SPECIFIC EXAMINATION

Exam No.

: AIT/PAUT/EXAM/001

Rev No.

: 02

Issued date

: 08th Aug 2018

Page

: 1 of 8

1. What would be used to assess the steering and resolution limits of an S-scan that was focused along a plane perpendicular to the test surface? A) A series of SDHs aligned vertically and at increasing the depth to the test surface B) The 100mm radius of the IIW block C) The end of the IIW block D) A series of SDHs at the depth from the test surface 2. The technique indicated using one group of a phased-array probe elements to transmit (blue) and another to receive (red) is called?

A) Tandem B) Pitch-catch C) Both a & b D) Pulse-skip-echo 3. Given that the blue lines indicate the transmitted beam, and the red indicates the received ray, what will the optimum refracted angle that the receiver focal laws is configure for if the transmitted beam is 60° and the bevel angle is 4° from vertical?

A) 56° B) 60° C) 64° D) 68°

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4. Why is the 50mm radius of the V2 block is ideal to use for setting sensitivity compensation when configuring focal laws for S-scans using a probe mounted on a refracting wedge instead of another target? A) Because a SDH provide too low an echo response B) Because S-scans cannot detect FBH reliably C) Both a & b D) Because it provides a constant sound-path for all focal laws 5. If any sensitivity setting has changed by more than 20% or 2 dB of its amplitude, correct the sensitivity calibration, and note the correction in the examination record. If the sensitivity setting has decreased? A) All data sheets since the last valid calibration check shall be marked void and the area covered by the voided data shall be reexamined. B) The last valid calibration check shall be marked void and the area covered by the voided data shall be reexamined. C) All data sheets since the last valid calibration check shall be marked void. D) None of the above 6. Phased-array technology with data recording allows for ideal conditions to monitor flaw for change. Reproducibility of inspection result can then be based on? A) Defect parameters B) Reference gain from probe to probe C) Reference gain from inspection to inspection D) All of the above 7. How many scanning techniques are designated in Article 4 ASME section V? A) 1 B) 2 C) 3 D) 4 8. The minimum scanning dB for inspecting a butt-welded joint is? A) Primary Reference dB. B) Primary Reference dB + 6 dB C) Primary Reference dB + 12 dB D) Primary Reference dB + 20 Db

PHASED ARRAY ULTRASONIC TESTING –SPECIFIC `EXAMINATION

Exam No.

: AIT/PAUT/EXAM/001

Rev No.

: 02

Issued date

: 08th Aug 2018

Page

: 3 of 8

9. What is the size of reference reflector used for constructing TCG, when inspecting the material of thickness 38 mm? A) 3.0 mm SDH B) 4.8 mmSDH C) 2.5 mm SDH D) 1.5 mm FBH 10. What is your interpretation with indication as figure below? A) LOF B) LOP C) Root crack D) Slag

11. What is your interpretation with indication as figure below? A) LOF B) LOP C) Root crack D) Porosity

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12. What is type of C-scan (1) below? A) Un-corrected B) Corrected C) Plan View D) None of the above 13. Which angles are using for B-scan (2) below? A) 68 degrees B) 70 degrees C) 60 degrees D) 45 degrees

14. What is your assessment with scan plan as figure below? A) Accepted B) Un-accepted C) Need to add linear group D) None of the above

PHASED ARRAY ULTRASONIC TESTING –SPECIFIC `EXAMINATION

Exam No.

: AIT/PAUT/EXAM/001

Rev No.

: 02

Issued date

: 08th Aug 2018

Page

: 5 of 8

15. What is your assessment with scan plan as figure below? A) Accepted B) Un-accepted C) Shall be added linear group D) None of the above

16. What is your assessment with scan plan as figure below? A) Accepted B) Un-accepted C) Shall be added linear group D) None of the above

17. What is the requirement of notch length of piping calibration block? A) Notch lengths shall be reduced to provide for calibration with a 3 to 1 signalto-noise ratio. B) Notch lengths shall be sufficient to provide for calibration with a minimum 3 to 1 signal-to-noise ratio. C) Notch lengths shall be greater than 1 inch D) None of the above 18. Which statements are true regarding to the calibration material? A) The material from which the block is fabricated shall be of the same product form and material specification or equivalent P-Number grouping as one of the materials being examined. B) The material from which the block is fabricated shall be exactly same product form and material Page 5 of 8

C) The material from which the block is fabricated shall be of the same material specification or equivalent P-Number grouping as one of the materials being examined. D) None of the above 19. Use of Ultrasonic Examination in Lieu of RT for ASME Sec VIII Pressure Vessels A) Case 2235 B) Case 2600 C) Case 2599 D) Case 179 20. How many flaws are required for qualification block in accordance with Case 2235? A) One surface flaw on the side of the block representing the vessel O.D. surface B) One surface flaw on the side of the block representing the vessel I.D. surface C) One subsurface flaw D) All of the above 21. Which of the following defects could be easily detected by 45-degree beam angle? A) A – LOF B) B – LOP C) C – Porosity D) D – Toe Crack

22. According to ASME code case 2235, how many artificial flaws normally requires for the qualification block(s)? A) 3 B) 2 C) At least three flaws D) Maximum 3 flaws

PHASED ARRAY ULTRASONIC TESTING –SPECIFIC `EXAMINATION

Exam No.

: AIT/PAUT/EXAM/001

Rev No.

: 02

Issued date

: 08th Aug 2018

Page

: 7 of 8

23. According to ASME code case 2235, when we need to use multiple linear passes with S-scans to ensure detectability for the entire weld volume. A) Components greater than 0.5 in. thick B) Components greater than 0.75 in. thick C) Components greater than 1 in. thick D) Components greater than 1.5 in. thick 24. According to ASME code case 2235, who will certify for PAUT operator? A) University B) Training center C) Their employer D) Contractor 25. According to ASME code case 2235, how many techniques are required for Data Analysis Criteria? A) 4 B) 3 C) 2 D) 1 26. For amplitude-based techniques, the location, amplitude, and extent of all reflectors that produce a response greater than _______________ A) The reference levels B) 20% of the reference level C) 50% of the reference level D) 80% of the reference level 27. What the indication shall be investigated of the weld plate 28 mm thickness for non-amplitude-based techniques? A) Images with indicated lengths greater than 0.05t or 0.75 in. (19 mm) B) Images with indicated lengths greater than 0.200 in. (5 mm) shall be investigated. C) Images with indicated lengths greater than 0.150 in. (3.8 mm) shall be investigated. D) Images with indicated lengths greater than 1.4mm

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28. What the indication shall be investigated of the weld plate 40 mm thickness for non-amplitude-based techniques? A) Images with indicated lengths greater than 0.05t or 0.75 in. (19 mm) B) Images with indicated lengths greater than 0.100 in. (25.4 mm) shall be investigated. C) Images with indicated lengths greater than 0.150 in. (3.8 mm) shall be investigated. D) Images with indicated lengths greater than 0.200 in. (5 mm) shall be investigated. 29. The inspection wac conducted on welds joining two different thicknesses of material, which thickness is required for evaluation? A) material thickness shall be based on the thicker of the two materials. B) material thickness shall be based on the thinner of the two materials. C) material thickness shall be based on the average of the two materials. D) None of the above 30. According to ASME code case 2235, A subsurface indication shall be considered as a surface flaw A) If separation S of the indication from the nearest surface of the component is equal to or less than half the through thickness dimension 2d of the subsurface indication. B) If separation S of the indication from the nearest surface of the component is equal to or less than half the through thickness dimension d of the subsurface indication. C) If separation S of the indication from the nearest surface of the component is greater than half the through thickness dimension 2d of the subsurface indication. D) None of the above