Q38. What is the inspection interval for buried piping without cathodic protection, the soil resistivity is 6,500 ohm-cm?

Q39. Who has the responsibility for qualifying welding procedures?

Q40. When may welding not be performed?

Q41. Of the following examples, which one may cause a leak in a threaded joint?

Q42. Besides ultrasonic instruments, what other method can be used to determine thickness measurements?

Q43. Cracks caused by vibration, thermal cycling, thermal expansion problems and environmental cracking are considered.

Q44. With respect to Category ‘D’ service, what is the maximum allowable undercut for a branch connection?

Q45. A piping inspector employed by the owner operator shall have

Q46. all suspect areas and areas of damaged insulation should be examined?

Q47. A transverse crack was discovered in the root pass of a completed weld on the outside of a Category D Fluid Service piping system during a PT test.
Which of the following,” statements is most accurate?

Q48. A pipe has the highest potential of resulting in an immediate emergency if a leak were to occur.

Q49. A piping system that operates at a design pressure of 100 psi at 950? F was originally built from NPS 20 EFW (100% radiographed), ½” wall, A-516 Grade 70, A-671 material. During the last Inspection, the thickness was determined to be 0.370 inches. The records indicated the corrosion rate to be 0.009 inches per year.
What is MAWP if the next inspection is planned in 5 years?

Q50. When can welding procedures qualified by other than the employer be used?

Q51. A leak test is an alternative to inspection of buried piping.
What is the minimum liquid pressure to adequately conduct this test?

Q52. Actively engaged as an authorized piping inspector shall be defined as a minimum of time spent performing inspection activities.

Q53. If the supporting PQR is used, are the P-no’s correct on the attached WPS?

Q54. After hot bending and forming, heat treatment is required for which P numbers?

Q55. What is a thermocouple pyrometer?

Q56. Each piece of magnetizing equipment shall be calibrated

Q57. An API authorized piping inspector certificate is valid for years from its date of issuance

Q58. What is the maximum Brinell hardness of base metal P-6?

Q59. What is the required thickness of straight run pipe subject to internal pressure only, based on the following conditions: NPS 14, SA 285 Gr.C, EFW Spiral seam (No radiography), operating at 216 psi / 378?F

Q60. A welder who tests on a ½” thick plate, groove weld in the 3G position is also qualified to weld in which other plate position?