Q14. Determine the MAWP of the following piping system, at the next inspection, based on the following Design pressure/temperature Pipe description Outside diameter of pipe, D Thickness determined from Inspection Observed Corrosion Rate Next planned inspection 100 psig/750°F NPS 6, A285 C EFW, Straight Seam(No radiography) 6 5/8″ 0.280″
0.01 inches/year 5 Years
MAWP=

Q15. What is the maximum length allowed for individual slag trapped in a weld in a Severe Cyclic Conditions piping system?

Q16. The base metal is P.No.8, the weld metal is A . No.8-9, and the wall thickness is 1″, what is the hold time for heat treatment

Q17. What is the root face limitation as listed on the attached WPS and PQR

Q18. Buried piping inspected periodically by excavation shall be inspected in lengths of:

Q19. 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?

Q20. In a piping circuit, which of the following does not routinely have thickness measurements taken?

Q21. Without the benefit of an impact test, what is the minimum operating temperature for A-106 Grade B material used in a Category D Fluid Service?

Q22. The acronym CUI refers to.

Q23. What is the most common method used to manufacture tubing?

Q24. According to API 570, a(n) is a person who assists the inspector by performing specific NDE testing.

Q25. The letter “B” is placed on radiographic film holder for what reason?

Q26. The transmitted film density through the radiographic image of the body of the appropriate hole penetrameter and the area of interest shall be minimum for radiographs made with a gamma ray source.

Q27. Determine the MAWP of the following piping system , at the next inspection, based on the following Design pressure/temperature Pipe description Outside diameter of pipe, D Thickness determined from Inspection Observed Corrosion Rate Next planned inspection 100 psig/100°F NPS 20, Sch. std, A 106 B 20″
0.280″
0.02 inches/year 5 Years
MAWP=

Q28. Rerating piping systems may be allowed only if the calculations are performed by

Q29. An operator notice a pipe off its support, what should be done?

Q30. API 570 was developed to provide for the inspection of in-service process piping.