1. a pipe has a thickness designation of"40S". what does the "S" mean?

stainless steel

2. A pneumatic pressure test is to beconducted on a Normal Service pipingsystem. During pipe erection, how manyof the joint assemblies should beexamined?

100 %

3. A PQR test coupon with a shell thicknessof "T" can generally be used to qualify awall thickness on the WPS up to.

2T

4. A pressure test is always required: whenever theauthorizedinspectorbelieves oneis necessary

5. A propane piping system should beclassified as?

Class 1

6. A welder becomes unqualified when hehas not welded using the:

Process for 6months

7. According to ASME/ANSI B16.5 flangesfrom plate materials can only be usedfor:

Blind flanges

8. According to B31.3, a welder'squalification records from a previousemployer can:

Be accepted ifthe inspectorapproves

9. An inservice process pipe should beclassified as Class 1 when the % of H2Sexceeds:

3%

10. ASME/ANSI B16.5 requires flanges to be: marked withthe classrating.

11. Carbon steel materials are most likely tobe incorrectly substituted in.

a chromesteel pipingsystem.

12. Describe the 3G welding test position. Verticalgroove

13. During a direct visual exam of a pipeweld, the minimum light intensity shouldbe:

100footcandles

14. During a hydrotest, all joints should be: leftuninsulated

15. During a pipe repair, preheat issubstituted for the required PWHT.What is the minimum preheattemperature.

300 F

16. During an API 570 pipe repairs, whichwelding discontinuity is alwaysunacceptable?

Cracks andInadequatefusion

17. During pipe fabrication who hasoverall responsibility forcompliance with the code?

owner/user

18. During welding, non-esentialvariables:

Must be recorded onlyon the WPS and mustbe followed by thewelder.

19. Excessive repairs to pumpbearings may be a result of:

excessive forcescoming from thermalgrowth in the attachedpiping system

20. Flange bolts are unacceptable ifthe bolt threads do not extend.

inside the nut within 1thread of the nut face

21. Flange leaks in certain fluids cancause:

bolts to crack andcorrode

22. for welded pipe, the normalthickness of under-tolerance is?

.010 or 10 mils

23. Generally socket-welded pipe isnot used for nominal pipe sizesabove:

2 inches

24. Generally, raised face flangesshould have a surface finish of:

125-250 micro- inches

25. Graphitization of carbon steelsbegins to occur when metaltemperatures exceed:

800 F

26. Heat Tracing could causecracking in carbon steel pipingwhich is in:

Caustic service

27. In severe refinery services whichtype of pipe is normally used?

seamless

28. Liquid thermal relief valvesshould be set at a pressure nothigher than:

120 %

29. Loose or broken anchor bolts atpipe supports are most easilydetected by:

hammer testing

30. Per B31.3 how much of thefabrication should be visuallyexamined for a pipe in severecyclic service:

100 %

31. Per B31.3, how much RT isconducted on circumferentialwelds of a pipe in normalservice.

10%

32. Preheat should never besubstituted for PWHT if:

The PWHT wasdesigned to preventenvironmentalcracking

API 570 practice testStudy online at quizlet.com/_e5u77

33. Pressure applied inside a pipecreates stress in the pipe wall.These stresses are highest onwhich weld orientation?

longitudinal weld

34. Seal welding pipe threads: may be used toprevent leaks

35. The corrosiveness of soils can bedetermined by measuring thesoils:

Resistivity

36. The material verification programspecified by API 578 covers:

only pressurecontainingcomponents.

37. The RT procedure used for a piperepair must conform to therequirements of:

Sec 5

38. Thickness measurements aresuggested at pipefittings since:

directional changesgenerally createincreased turbulence.

39. What do you call a groove in theparent metal at the toe of a weld?

undercut

40. what is the interval for thicknessmeasurements on a class 1 pipingsystem?

lesser of 5 years orhalf life of the pipe

41. What is the minimum holdingtime for all pressure tests onpiping?

10 mins

42. When a relief device or valve isremoved for repair, the inspectorshould:

inspect the inside ofthe inlet and outletpiping where thevalve was removed.

43. When calibrating a UTinstrument, that has a delay linewith single element unit, use:

At least 2 test blockswith thicknessesnear the max andmin. to be examined.

44. When can radiography not beused to qualify a welder?

when using theGMAW process withthe short circuit mode

45. When fabricating pipe, unknownmaterials:

Should never be used(except for doorstops)

46. When performing preheat priorto welding, the preheat zone mustextend how far beyond the edge ofthe weld

1 inch

47. When performing soil-to airinspections on uncoated lines, itis recommended to excavate thesoil:

6-12"

48. when qualifying a weld procedurethe esential variables must:

be recorded on boththe WPS & PQR

49. When welding together piping componentsof different thicknesses, the thicker partshould be trimmed with a:

30 degreetaper.

50. Who has the responsibility to determinethe extent of PMI performed?

owner/user