API-570 Examination Preparation Course Practice Examination #6 Closed Book

1. What should be done at subsequent inspection of carbon steel piping circuits, in caustic service, that were originally stressed relieved?

a) Brinell hardness tests should be performed at the first inspection intervalb) Never hammer test these systemsc) Perform magnetic particle examination for crackingd) These systems require inspections at more frequent. at least twice, intervals

2. The following thicknesses were obtaining at one test point in a thickness measurement location; 0.176”, 0.202”, 0.212”, and 0.218”. Which thickness should be used to calculate the corrosion rate, remaining life, and the next inspection date?

a) 0.176”b) 0.202”c) 0.212”d) 0.218”

3. According to API RP-578, which of the following is the most correct statement regarding a positive material identification (PMI) testing program in a warehouse?

a) Can be an alternative to PMI testing of a fabricated piping systemb) Is only applicable to valves, flanges, fittings, and other small partsc) If the material test reports are supplied, then PMI testing at the warehouse is not necessaryd) Warehouse PMI testing should never be regarded as an alternative to testing the fabricated piping system

4. All environmental cracking discovered during an in-service inspection should be evaluated by:

a) A certified welding inspector (CWI)b) The API-570 piping inspectorc) The piping engineerd) Operating personnel

5. According to B16.5, which of the following is not required to be marked on a flange?

a) Manufacturer’s name or markingb) Pressure ratingc) Material specificationd) Temperature range

6. A piping system, located inside the boundary limits (ISBL) of an operating unit. contains hydrocarbons that would vaporize very slowly in the event of a release. What API-570 service classification should be assigned to this system?

a) Class 1b) Class 2 c) Class 3d) Auxiliary

7. Of the following, what inspection method would be the most appropriate for inspecting a regenerator overhead duct for refractory damage?

a) infrared thermographyb) Special high temperature ultrasonic examinationc) High temperature liquid penetrantd) Eddy current examination

8. Inspection of the concrete to air interface of buried piping shows deterioration of the caulking and may have allowed water to enter the interface area. The system was installed 15 years ago without cathodic protection. What should be done with this system?

a) Break up the concrete and inspect for corrosion beneath the surfaceb) Just reseal the joint to prevent further water ingressc) Take thickness measurements on the piping six inches above the interfaced) Inspect the joint at grade and take pit depth measurements

9. According to ASME Section IX, which of the following must be on every procedure qualification record (PQR)?

a) The completed PQR shall address all essential and nonessential variables of the welding processb) The PQR shall be certified accurate by the manufacturer or contractorc) The joint design such as groove design, root spacing, etc.d) The minimum and maximum base metal thickness range qualified

10. How is the first thickness measurement interval established for newly installed piping systems?

a) On stream determination after 2400 hours of serviceb) Using the actual thickness minus the minimum thickness and divide by twoc) Owner/user’s experience with similar serviced) Using the manufacturers corrosion rate calculations

11. In-service ultrasonic thickness measurements, of an NPS 30 vapor line, revealed thinning in the heat affected zone (HAZ) of an elbow to weld neck flange. During the next

scheduled downtime, which of the following would be the best method to determine the extent of deterioration?

a) Profile radiography of the weldb) Internal inspectionc) 100% radiography of the weldsd) Ultrasonic A-scan of the elbow

12. Fasteners and components attached by threads or bolted to a piping system have a greater potential for:

a) replacement with improper componentsb) brittle fracture of bolting materialsc) chloride stress corrosion crackingd) carburization

13. Unless otherwise specified in API-570, NDE of repair or alteration welds shall be in accordance with:

a) API RP 582b) API RP 580c) ASME Section VIII paragraph UW-51d) The applicable code and the owner/user’s specification

14. The extent of positive material identification of alloy materials used for repairs or alterations shall be determined by the:

a) API-570 certified inspectorb) Material supplierc) The owner userd) The repair organization

15. When performing liquid penetrant examination on nickel based alloys, austenitic or duplex stainless steels, and titanium a certification of contaminant shall be obtained. Of the following which is not required by ASME Section V?

a) Penetrant manufacturer’s numbersb) Test resultsc) The records shall be maintained in accordance with the referencing Code Sectiond) The name of the person performing the certification tests

16. What is a consideration in determining the amount if inspection of valves in a piping system?

a) The inspection requirement depending on the piping classb) Random inspections to ensure a representative sample is being inspected

c) The number of TML on each valved) Unusual thinning or corrosion noted during repairs or service

17. What is the pneumatic test pressure for a piping system designed for 300psi at 700°F with an allowable stress at design temperature of 15000psi and 20000psi at test temperature?

a) 247psib) 440psic) 330psid) 600psi

18. Historically, material non-conformances with the greatest number of serious consequences have involved:

a) Stainless steel in Inconel piping systemsb) Carbon steel components in stainless steel piping systemsc) Carbon steel components in low alloy piping systemsd) Low alloy components in stainless piping systems

19. According to API RP 574, which of the following is not one of the four specific items that should be used for a number or coding system identification?

a) The original construction codeb) The process unitc) The piping systemd) The circuit

20. What is the corrosion rate for a TML that had base-line thickness measurement of0.438” taken on May 31, 2000 and on June 1, 2006 thickness measurements at the same TML produced an actual thickness of 0.423?

a) 0.0150” per yearb) 0.0025” per yearc) 0.0500” per yeard) 0.0250” per year

21. API-570 states that an examiner:

a) Must be an API-570 authorized inspectorb) Must authorize all repair procedures and examination techniques prior to the completion of the workc) Does not have to be an API-570 authorized inspectord) Must evaluate the results of NDE on piping systems

22. Which of the following provides acceptable evidence that a radiographic examination technique is in accordance with ASME Section V?

a) Personnel are certified to ASNT TC 1Ab) Successful completion of the system pressure testc) Proof that the IQI and density are within the limits of the coded) Acceptable radiographic film images with no rejected defects in production and repair welds

23. A piping system has a calculated minimum required thickness of 0.380”. Based on the following thickness measurement information, what is the shortest remaining life of the piping system?

Years of Operation Wall Thickness0 0.455”3 0.420”4 0.415”

a) 7 yearsb) 3.5 yearsc) 2.5 yearsd) 5 years

24. Which of the following need not be considered in specifying piping for original installation?

a)Stresses caused by other loadsb)Threadsc)Corrosion allowanced)API 570 system classification

25. A bolt is considered fully engaged provided:

a) It extends completely through the nut with a minimum of one thread exposedb) It extends completely through the nut with a minimum of two threads exposedc) It extends through the nut so it is no more than one thread shortd) It extends through the nut so it is no more than two threads short

26. The owner decides to conduct a pneumatic pressure test in stead of a hydrostatic test. due to the installed piping system’s in ability to support the weight of liquid that would be used for the test. The system is designed for 300psi with an allowable stress value at design temperature of I 3000psi and 20000psi at test temperature. What is the acceptable pneumatic test pressure?

a) 300psib) 330psic) 508psi

d) 690psi

27. What is the maximum production plate thickness qualified for a SMAW welding procedure specification if the test coupon thickness was 518”?

a) 8.0”b) 1.5”c) 1.25”d) 0.625”

28. How often must the risk based inspection assessment for an API-570 Class I piping system, be made?

a) Risk based inspection is not permitted on Class I systemsb) Every three yearsc) Every five yearsd) Every ten years

29. A fillet welded external patch, to be installed over a piping system defect:

a) Must be designed by a piping engineerb) Is never permittedc) Is considered a permanent repaird) Does not require rounded corners

30. Thickness measurements on a sulfuric acid piping circuit indicate severe internal wall loss just downstream of a flanged junction. The system is reported to be A-53 and the pipe is lined. Which of the following would you attribute the wall loss to?

a) Wall thinning is expected in acid serviceb) The pipe manufacturer fabricated the pipe outside the permitted under tolerancec) The lining has failedd) Turbulence due to the flanged joint

31. Welded repairs are to be made on A-53 Gr. B pipe. The ambient temperature is below32°F and the electrode diameter will not exceed 5/32”. Which of the following electrode must be used?

a) No welding is permitted below 30°Fb) Low Hydrogenc) Low alloyd) Low ductility

32. An imperfection of a type or magnitude exceeding the acceptable criteria is known as a/an:

a)Discontinuity b)fIawc) Indication d) defect

33. Which of the following fluid services is specifically API-570 applicable to?

a) Raw, intermediate, and finished petroleum productsb) Category ‘D” fluid service as defined in ASME B3 1.3 c) condensated) utility streams

34. What would be the most appropriate action for an inspector to take when inspection reveals that the pipe shoes on a line have moved off the primary supports and are hanging on the beams? This is preventing the line to return to its cold position.

a) Have the shoes replaced with longer shoesb) Consult a piping engineer to evaluate the stresses in the pipec) Recommend anchors and stops in the piping support systemd) Specify a re-design of the supports to permit more movement

35. What is the permitted temperature variance between the calibration block and the part to be examined in ultrasonic examination?

a) 125°Fb) 100°Fc) 25°Fd) 0°F

36. In pipe caps, corroded areas evidenced by local thinning:

a) May be ignored in small bore pipingb) May be ignored provided they are less than 10% of total area of the capc) May be evaluated using the principles of API-579d) May be ignored provided they do not decrease the cap thickness more than 50% of the original thickness

37. Actual measured thickness is 0.35”, the minimum required thickness is 0.25”, and the corrosion rate has been determined to be 0.0025” per year. When is the next thickness measurement required to be scheduled on this Class 3 piping system?

a) Three yearsb) Five yearsc) Ten yearsd) Fifteen years

38. “A groove in the base metal at the toe of the weld” is the definition of which of the following?

a) Incomplete penetrationb) Lack of sidewall fusionc) Incomplete filling of the weld rootd) Undercut

39. Which inspection technique is most appropriate for a Class 1, NPS 1, carbon steel piping system, and that operates at 200°F?

a) Ultrasonic thickness measurementsb) Pressure testingc) Eddy current testingd) Radiographic profile

40. Which of the following is not a requirement for acceptance of a final closure weld in a modified system piping that will be pressure tested?

a) Liquid penetrant or magnetic particle examination of the root pass and completed weldb) The closure weld must be a full penetrationc) The piping engineer shall perform finite element analysis of the weldd) The rest of the new piping must be pressure tested

41. Carbon steel piping systems are most susceptible to corrosion under insulation when they operate within which of the following temperature ranges?

a) Between -20°F and 250°Fb) Between 25°F and 250° Fc) Between 150°F and 250°Fd) Between 150°F and 400°F

42. An in service piping system is being re-classified to Class 1. The previous interval, for thickness measurements, was 6 years. Given the following, what should the new thickness measurement interval be? No RBI was performed.

Current measured thickness: 0.240”Minimum required thickness: 0.192”Projected corrosion rate: 0.008” per year

a) 6 yearsb) 3 yearsc) 12 yearsd) 1.5 years

43. Notch toughness testing is to be performed in the qualification of a welding procedure. Which of the following notch toughness testing method is used for compliance with ASME B31.3?

a) Brinell testb) Impact testc) Guided bend testd) Hydrostatic test

44. Flammable petroleum process piping systems may be classified as Class 3 provided the system contains:

a) Finished product being pumped to a remote booster stationb) Waste gas used to fuel an on site heaterc) On site naphtha with no hydrogen sulfided) Anhydrous hydrogen chloride

45. Substituting nondestructive examination for a pressure test following an alteration:

a) Is never permittedb) Generally acceptablec) Requires consultation with the inspector and piping engineerd) Must comply with B31.3

46. With regard to new connections, being installed in an existing piping system, which of the following is the correct statement?

a) These connections are always considered an alterationb) Full radiography is requiredc) They must be located downstream of any control valved) They shall be designed in accordance with the applicable Code

47. An NPS 4piping system was installed in June 1989. At the time of installation, baseline thickness measurements indicated the pipe wall to be 0.24”. In January of 1998 thickness measurements revealed a wall thickness of 0.22” and six months later thickness measurements were taken again with a resulting wall thickness of .20”. The January 2006 inspection revealed the wall thickness to be .19”. Based on this information, what is the long term corrosion rate?

a) 0.00l”peryearb) 0.002” per yearc) 0.003” per yeard) 0.040” per year

48. Ultrasonic thickness measurement accuracy is affected by all but which of the following?

a) Temperature above 150Fb) External coatingc) Thickness greater than 1/8”d) Instrument calibration

49. Under certain conditions, environmental cracking of carbon steel can occur in the presence of:

a) Chlorideb) Aminec) Naphthenic acidd) Polythionic acid

50. During the inspection of a section of buried piping, a trench eight feet deep is dug to expose the pipe. Prior to personnel entering the trench to take thickness measurements, which of the following must be done?

a) Conduct soil resistivity survey within ten feet of the excavationb) Ensure the walls of the trench are properly shoredc) Conduct a liquid pressure testd) Clean all loose paint and scale off the entire length of exposed pipe

51. Which of the following is cause for rejection of the “B” image on an RT film?

a) Any imageb) No imagec) Dark imaged) Light image

52. Which of the following would be best suited for finding an obstruction in piping?

a) Magnetic particle examinationb) Acoustic emission testingc) Radiographyd) Ultrasonic

53. What is the maximum interval for thickness measurements when risk based inspection methods are not used?

a) Three yearsb) Five yearsc) Ten yearsd) Determined by piping classification

54. According to Section IX, welders who pass the required tests in the 6-G position are qualified for:

a) Groove and fillet welds only in the 6-G positionb) Groove and fillet welds in all positionsc) Groove welds in the 6-G position and fillet welds only in the 2-G positiond) Groove welds only in the 2-0 position and fillet welds in all positions

55. According to ASME B31.3 and API-570, hydrostatic tests shall be held for:

a) Not more that 10 minutesb) Not less than 10 minutesc) Not more than one hourd) Not less than one hour

56. Localized pitting may be temporarily repaired using a fillet weld patch providing:

a) The minimum specified yield strength of the pipe material is <40000psib) The minimum specified yield strength of the pipe material is > 40000psic) The maximum size of the patch is <100 square inchesd) The remaining pipe wall thickness below the pit is > 50% of the required thickness

57. In radiographic examination, the image quality indicator is selected based on which of the following?

a) Size of the IQI hole in the hole typeb) Diameter of the wire in the wire typec) Source to film distanced) Thickness of the material welded

58. According to API-570, when detecting interior surface breaking planar flaws, when inspecting from the external surface, the owner/user shall specify:

a) Industry qualified UT shear-wave examinersb) Industry qualified UT straight-beam examinersc) Level II RT examinersd) Level II PT examiners

59. Which of the following piping systems is excluded from API-570?

a) Primary process piping systems less than NPS 2b) Secondary process piping systems greater than NPS 6c) Flare pipingd) Firewater piping

60. When corrosion product buildup is noted at pipe support contact areas. lifting off such supports may be required for inspection. What should be done as a minimum?

a) Exercise care if the piping system is in service

b) Take the piping system out of servicec) The area must be abrasive blast cleaned to permit proper inspectiond) As long as no leakage is evident lifting of the pipe is not recommended

61. According to ASME Section V, how are wire type IQIs to be placed?

a) On the weld so that the length of the wire is parallel to the weldb) On the weld so that the length of the wire is perpendicular to the weldc) Adjacent to the weld so that the length of the wire is parallel to the weldd) Adjacent to the weld so that the length of the wire is perpendicular to the weld

62. Under which circumstance may a welder be qualified by a RT of a production weld in stead of on a coupon?

a) When the welder’s first 12” of production weld pass RTb) Welders can not be qualified this way for pipe weldingc) When the welders first 6” of production weld pass RTd) When the welder’s first 6” of production weld pass RT and he only welds SBP piping systems

63. Which of the following type of valve would make pigging impossible?

a) Ball valveb) Gate valvec) Globe valved) Slide valve

64. What type of document is ASNT Recommended Practice SNT-TC-1A?

a) Standard set of NDE procedures that are pre-qualifiedb) Document covering NDE personnel qualificationsc) Document covering NDE proceduresd) Document covering safety procedures for owner/users

65. In reviewing the previous inspection report, you discover that the corrosion rate was calculated incorrectly. What rate must be used for the next inspection period?

a) The rate should be changed to the actual rate foundb) The rate should be based on the short term rate from the reportc) The rate should be based on the average short and long term rates from the reportd) No action is necessary until the corrosion rate is confirmed at the next inspection

66. According to API-570 and ASME B31.3, welding shall not be performed if the weld area is:

a) Below 40’F

b) Above 120°Fc) In an inert atmosphered) Frosted or wet

67. API-570 recommends that the surface conditions of buried pipeline paths be visually surveyed at what interval?

a) 6 monthsb) 12 monthsc) 18 monthsd) Based on the soil corrosivity

68. When the corrosion rate for a piping system cannot be determined by similar service. initial thickness measurements should be taken within:

a) 3 monthsb) 6 monthsc) 9 monthsd) 12 months

69. A piping system used in vapor service requires pressure testing. The supports for this system were not designed for a hydrostatic test. Which of the following is an acceptable alternative to the hydrostatic test?

a) Sensitive leak testb) Pneumatic testc) Vacuum testd) UT shear-wave of all welds

70. A crack repair can be considered permanent if:

a) A full encirclement split sleeve is installed per API-570b) The piping component is pressure tested to 1.5 times the MAWPc) The weld groove completely removes the defect and is then filled with weld metald) A box type enclosure is installed

71. Which if the following metals is most susceptible to severe metal loss under high velocity conditions?

a) Aluminum and copperb) 300 series stainless steelc) Moneld) Titanium

72. What is the wall thickness value to be used when recalculating the MAWP of an in- service piping system?

a) The actual thickness measuredb) The actual thickness measured minus the estimated corrosion loss before the next inspectionc) The actual thickness measured minus twice the estimated corrosion loss before the next inspectiond) The actual thickness measured minus four times the estimated corrosion loss before the next inspection

73. In radiography, location markers that are to appear as radiographic images shall be placed:

a) On the back of the film holderb) On or adjacent to the weld next to the IQIc) Between the film and the part being radiographedd) On the part being radiographed

74. Piping inspection records that provide design information and drawings shall be updated prior to:

a) Re-rating the piping systemb) Completion of a hydrostatic testc) Repair a portion of the system that corroded to below minimum thicknessd) Taking thickness measurements on the piping system

75. In addition to the inspector’s authorization, alterations on a piping system must be approved by alan:

a) Unit inspectorb) Maintenance supervisorc) Piping engineerd) Lead operator

76. Welds on in-service piping systems are often inspected for corrosion using:

a) Liquid penetrant examinationb) Profile RTc) Straight beam ultrasonicd) Magnetic particle

77. Brittle fracture failure is usually not a concern with which of the following piping?

a) 400 series stainlessb) Large borec) Relatively heavy walledd) Relatively thin walled

78. According to ASME Section V, what is the film density range for single film viewing for radiographs made with a gamma ray source?

a) .05 to 4.0b) 1.3 to 4.0c) 1.8 to 4.0d) 2.0 to 4.0

79. When establishing TMLs in an inject circuit, which of the following is the most important?

a) Downstream from the injected fluid on the pipe wallb) 12 feet upstream of the injection pointc) On the injection nozzle before the injection occursd) 25 feet downstream from the second change in flow direction

80. What are the three “zones” of a weldment?

a) Weld metal, fusion line, heat affectedb) Weld metal, heat affected, and base metalc) Weld metal, heat affected, and residual stressd) Weld root, intermediate passes. and weld cap or crown

81. Completed repairs and alterations of in-service piping systems must be approved by the:

a) Repair organizationb) API-570 certified inspectorc) Piping engineer in accordance with API-570d) Certified inspector and a piping engineer

82. With regard to inadvertent substitution of non-specified material, which of the following is least susceptible?

a) Boltingb) Warm-up linesc) Small diameter piping (SBP)d) Large diameter piping

83. With regard to the frequency and extent of inspection, what is the classification of piping systems usually based on?

a) Severity of consequences resulting from a component failureb) Potential for revenue loss due to unscheduled maintenance shutdownsc) Pressure and temperature of the fluid handledd) Age of the limiting component and the likelihood of component failure

84. API-570 states that potable water should be used in hydrostatic testing of which of the following materials?

a) 5Cr-.5Mob) 300 series stainlessc) Carbon steeld) Monel

85. TML readings on a piping system indicate that the corrosion rate has increased. The inspector’s most appropriate response is to:

a) Recalculate the piping circuit average corrosion rateb) Schedule the next inspection within six monthsc) Report the change to the maintenance departmentd) Recalculate the inspection interval of the system

86. Which of the following is most correct regarding the placement of TMLs during inspection of small bore threaded connections?

a) TMLs are not mandatory for small bore threaded connectionsb) TMLs are not required on insulated piping above 300SFc) Choose only the TMLs that can be radiographed during scheduled inspectionsd) Choose only the TMLs that can have insulation plugs removed during scheduled inspections

87. Of the following who can approve exceptions to preheat temperature used in making repairs?

a) The inspectorb) The owner/userc) The piping engineerd) A metallurgist

88. On buried piping. Generally, the lower the soil resistivity, the:

a) Lower the potential for soil moisture retentionb) The greater the inspection intervalc) Higher the external corrosion rated) Less need for cathodic protection

89. Deformation of a pressure vessel wall, in the vicinity of a pipe attachment, is noticed during an inspection. What is the most appropriate action to take?

a) Notify the pressure vessel inspector that he/she may have a problem and forget itb) Recommend an immediate shutdown of the unitc) Check for piping misalignment

d) Verify the allowable deformation in accordance with ASME Section VIII, Div. I

90. Local PWHT may be considered for piping repairs under all of the following conditions except when the:

a) Material has higher than 9% chromeb) Piping system is greater than NPS 12c) Thickness of the piping wall is greater than 0.5”d) PWHT is for environmental cracking

91. RT Profile examination of an in-service piping system reveals crack like indications. Which of the following would normally be included during further inspection?

a) Internal visual inspectionb) Liquid penetrant examinationc) Wet fluorescent magnetic particle examinationd) Weld quality RT, UT. or both

92. Holiday surveys are used to evaluate:

a) Need for coating repairsb) The effectiveness of cathodic protectionc) Coating thicknessd) The need for additional anodes

93. When an area of metal loss, that exceeds the corrosion allowance, it should be evaluated in accordance with the principles of which of the following?

a) API-579b) ASME Section VIII, Division Ic) ASME B3l.3d) ASME Section VIII, Division 2

94. Inspection of Class 2 secondary process small bore piping is:

a) Performed at the same intervals as Class 2 primary pipingb) Outside the scope of API-570c) Performed at the same intervals as injection pointsd) Optional

95. In field positive material identification activity, all of the following methods may be used except:

a) X-ray fluorescent analyzersb) Chemical spot testingc) Wet fluorescent magnetic particle

d) Optical spectrographic

96. Which of the following would not be appropriate for measuring skin temperature of hot spots in piping systems?

a) Temperature indicating paintsb) High temperature ultrasonic examinationc) Thermographyd) Portable thermocouple

97. The approval of a piping engineer is not required when:

a) Pressure testing after repairsb) Repairing damaged areas with full encirclement welded split sleevesc) Re-rating a piping systemd) Applying pre-heat in lieu of PWHT

98. Unless risk-based inspection methods are used, visual external inspection of piping systems should be conducted at no more than which of the following intervals?

a) Five years for Class I or Class 2 systemsb) Five years for Class 3 systemsc) Ten years for Class 2 systemsd) Three years for Class 1 systems