570 Certification Renewal Questions
Answers in BOLD Type
1. The difference between long-term and short-term corrosion rate calculations is that:
A.
B.
C.
D.
The long-term corrosion rate uses “T minimum” in calculating remaining life.
The long-term corrosion rate results in a more accurate remaining life.
The short-term corrosion rate uses “T previous” in the calculation
The short-term corrosion rate results in a more accurate remaining life.
API 570 7.1.1
2. How do you evaluate the effects of fire damage on a piping system?
A.
B.
C.
D.
Utilizing API 578 Material Verification programs
Utilizing API 579 Fitness-for Service.
Utilizing API 570 Piping Inspection Code.
Utilizing API 57A Inspection Practices for piping components.
API 570 7.4(e)
3. API 570 Inspection Code recognizes what concepts for evaluation of degradation of
piping?
A.
B.
C.
D.
Fitness-for-Service
Risk-based inspection.
Corrosion rate measurements
ASME B31.3 Process piping code.
API 570 1.3
4. Densitometers shall be calibrated at least every 90 days using a national standard step
tablet or a step wedge calibration film, traceable to a national standard step tablet and:
A.
B.
C.
D.
Having at least 4 steps with neutral densities form at least 1.0 through 4.0
Having at least 5 steps with neutral densities from at least 1.0 through 4.0
Having at least 4 steps with neutral densities form at least 1.0 through 3.0
Having at least 5 steps with neutral densities from at least 1.0 through 3.0
ASME Section V T-262.1(a)
5. In Submerged-Arc welding (SAW), a Change in the spacing of multiple electrodes for
machine or automatic welding is:
A.
B.
C.
D.
A nonessential variable
A nonessential variable when the spacing is changed no more than 10 percent
An essential variable.
An essential variable when the spacing is changed more than 10 percent
ASME Section IX QW-254 (QW 410.15)
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6. Long-term and short-term corrosion rates should be compared in order to:
A.
B.
C.
D.
Determine if more data is needed to verify the accuracy of measurements.
Determine if data scatter is greater than required for statistical analysis.
Determine if the piping system should be upgraded to a corrosion-resistant alloy.
See which results in the shortest remaining life of the piping system.
API 570 7.1.1
7. In Submerged-Arc Welding (SAW), for the machine or automatic welding process, a
change in:
A.
B.
C.
D.
Frequency or oscillation is a nonessential variable
Oscillation is an essential variable
Oscillation is a nonessential variable.
Width is a nonessential variable.
ASME Section IX QW-254 (QW 410.7)
8. What personnel qualification is required for the inspection of closure welds that have not
been pressure tested?
A.
B.
C.
D.
ASNT Level III UT Shear Wave examiners
ASNT Level III Qualified Radiographic Examiners
API Certified Welding Inspectors
Industry-qualified UT Shear Wave Examiners.
API 570 8.2.6
9. API 578, Material verification program for new and existing alloy piping systems covers:
A.
B.
C.
D.
Pipe Shoes
Valves.
Dummy (support) legs.
All of the above
API 578 4.2.5(e)
10. What is an industry-qualified UT Shear wave examiner?
A. An NDE Technician with ANSI Level II Certification in Ultrasonic Shear Wave
Examination.
B. A person who possesses an ultrasonic shear wave qualification approved by
the owner-user.
C. An inspector who passes the EPRI Time-Of-Flight Diffraction Examination.
D. A person who has passed the API 570 Examination for authorized inspector
certification.
API 570 3.53
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11. Positive Material Identification (PMI) of a piping component is:
A. A documented quality assurance procedure to verify that there has been no
inadvertent material substitutions.
B. A check of the mill certificates to confirms that a material has been correctly
received.
C. A check of the material stamping to confirm that the right mateirla has been
installed.
D. Any physical test of a material to confirm that it is consistent with the alloy
specification.
API 578 3.13
12. Standard reference materials are used in PMI for:
A.
B.
C.
D.
Validating those samples that are not examined by PMI
Determining how to calibrate the test instruments
Determining which PMI techniques should be applied
Demonstrating test instrument accuracy and reliability.
API 578 3.17
13. A piping system with a high potential consequence of failure has a corrosion rate of 10
MPY, 0.010 in/yr (0.25 mm/yr), a retirement thickness of .350” (8.9mm), a required
thickness of .250 ( 6.4mm), and an actual thickness today of .500” (12.7 mm). What is
the remaining life?
A.
B.
C.
D.
15
25
20
10
API 570 7.3 and 7.1.1 RL = (0.500-0.350)/0.010 = 15 years
14. When performing liquid penetrant examination, to qualify a procedure for temperatures
above 125 F (52 C):
A. Qualification shall be done at temperature at least 25 F (14 C) above the upper
temperature limit.
B. The lower temperature limits shall be established
C. The upper temperature limits shall be established
D. The upper and lower temperature limits shall be established.
ASME Section V Article 6 Appendix III – 641.2
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15. Fitness-for-service assessment is a methodology for flaw assessment in order to
determine:
A.
B.
C.
D.
If a piping system has the integrity for continued service?
the consequence of a sudden brittle fracture at low temperatures.
the risk that a piping system will be thinner than the corrosion allowance.
the likelihood that a piping component will be acceptable for high temperature
service.
API 570 3.52
16. When inspections, repairs or alterations are being conducted on piping systems, an API
authorized inspector:
A. Will be responsible for the inspection activities of non-authorized piping
inspectors.
B. Must update the records to reflect all inspections, repairs and alterations that
occurred.
C. Shall be directly involved in the inspection activities.
D. Is responsible to the jurisdiction for filing R-Stamp Reports.
API 570 4.3.4
17. Each radiographic exam procedure shall include distance from source side of object to
the film at:
A.
B.
C.
D.
a distance equal to the film width.
The minimum source-to-object distance.
A distance equal to half the film width.
The maximum source-to-object distance.
ASME Section V T-221.1(c)
18. Piping components identified by PMI as not meeting the original piping specifications:
A.
B.
C.
D.
Would be targeted for replacement.
Should be immediately reported to jurisdictional authorities.
Must be scheduled for replacement at the next opportunity.
Must be replaced promptly.
API 570 5.8
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19. What is the remaining life of a piping system with a short-term corrosion rate of 0.010
in/yr (0.25 mm/yr) and a long-term corrosion rate of 0.005 in/yr (0.13 mm/yr)? A
minimum required thickness of 0.150” (3.8mm), a remaining thickness of 0.210” (5.3
mm), and an original thickness of 0.270” (6.8 mm).
A.
B.
C.
D.
3 years
6 years
12 years
24 years
API 570 7.1.1 RL = (0.210-0.150)/0.10 = 6 years
20. If carbon content is a vital element of concern in a piping alloy, it can best be detected
by:
A.
B.
C.
D.
Turboelectric testing device
Portable x-ray fluorescence.
Optical emission spectrometry.
Chemical Spot testing.
API 578 5.2.2
21. The requirement for specifying industry-qualified shear wave examiners goes into or
went into effect in:
A.
B.
C.
D.
2002
2005
2003
2004
API 570 5.10
22. If the density of the radiograph anywhere through the area of interest varies by more than
minus 15% or plus 30% from the density through the body of the hole IQI within the
minimum/maximum allowable density ranges specified in Section V, then an additional
IQI shall be used for each exceptional area and the radiograph retaken. However when
shims are used with hole type IQIs:
A. The plus 30% density restriction may be exceeded provided the required IQI
sensitivity is met.
B. The plus 30% density restriction may be exceeded.
C. The minimum density requirement does not apply.
D. The plus 30% Density restriction may be exceeded and minimum density
requirement does not apply.
ASME Section V T-282.2(b)
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23. Substituting appropriate NDE procedures for a pressure test after a repair may only be
done after:
A.
B.
C.
D.
Determination that the pressure test would not be practical.
A brittle fracture assessment in accordance with API 579.
Consultation with the inspector and the piping engineer.
A valid risk assessment in accordance with API 581.
API 570 8.2.6
24. Whose responsibility is it to determine the extent of a retroactive material verification
program needed for existing piping systems?
A.
B.
C.
D.
Authorized piping inspector.
Owner-user.
Corrosion Specialist.
Jurisdiction.
API 578 4.3.1
25. Reasons for conducting material verification programs on existing piping systems include
all except:
A.
B.
C.
D.
Lack of adequate QA/QC on the original project.
Mix-ups in supplied materials.
Incorrectly specified materials of construction.
Inadvertent substitutions during maintenance activities.
API 578 4.3.2
26. The owner/user shall specify industry-qualified UT SW examiners when:
A. Conducting guided wave ultrasonic measurements for external corrosion on
buried piping.
B. The accuracy of longitudinal wave thickness measurements is in question.
C. Trying to detect and size flaws for Fitness-For Service evaluation.
D. Validating that higher-term corrosion rates are to be used in remaining life
calculations.
API 570 5.10
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27. What is the remaining life of a high consequence piping system with an injection point
that has recently begun corroding at 0.015 in/yr (0.38mm/yr). But was previously only
corroding at 0.005 in/yr (0.13 mm/yr) since installation? The minimum required
thickness is 0.187” (4.77mm). The retirement thickness is calculated to be 0.217” (5.5
mm) and the last measured thickness was 0.277” (7.0mm).
A.
B.
C.
D.
12 Years
6 Years
4 Years
18 Years
API 570 7.3 and 7.1.1 RL = (0.277-0.217)/0.015 = 4 years
28. When the owner/user chooses to conduct a RBI assessment it must be a systematic
evaluation in accordance with?
A.
B.
C.
D.
API 570
API 580
API 579
API 581
API 570 5.1
29. The API 578 Material Verification Program is for:
A.
B.
C.
D.
PMI of nozzles and flanges on pressure vessels.
All new and existing B31.3 piping systems
Determine if the alloy piping system has been correctly specified.
New and existing alloy piping systems.
API 578 Title
30. Densitometer calibrations required per ASME Sec V shall be documented. The actual
readings for each step:
A.
B.
C.
D.
Shall be witnessed by an authorized inspector.
Shall be kept in file for one year.
Do not have to be recorded.
Shall also be recorded.
ASME Section V T-262.4(a)
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31. If weld data essential variables are qualified by 1 or more PQRs and supplementary
essential variables are qualified by 1 or more PQRs, then the ranges of the essential
variables established by the former PQRs are:
A. Affected by the supplementary essential variables qualified by the latter PQRs.
B. Only affected by the latter to existing essential variables specified in the
approved essential variables.
C. Affected by the latter to all approved supplementary essential variables.
D. Only affected by the latter to the extent specified in the approved
supplemental essential variable.
ASME Section IX QW 401.3
32. The remaining life of a piping system shall be calculated with what formula?
A.
B.
C.
D.
T nominal-T retirement/ corrosion rate
T minimum + corrosion allowance / corrosion rate
T actual – T minimum / corrosion rate
T actual – T Required / corrosion rate
API 570 7.1.1
33. What is the long-term corrosion rate of a carbon steel piping system that was installed in
1983 with a nominal thickness of 0.395” (10 mm)? Before it was started up the measured
thickness was 0.375” (9.5mm). The previous measurement in 1993 was 0.295” (7.5 mm)
and the last measurement was 0.255 (6.5mm) in 2003.
A.
B.
C.
D.
4 MPY 0.008 in/yr (0.10 mm/yr)
6 MPY 0.006 in/yr (0.15 mm/yr)
2 MPY 0.007 in/yr (0.05 mm/yr)
12MPY 3.010 in/yr (0.30 mm/yr)
API 570 7.1.1 LTCR = (0.375-0.255)/20 = 0.006 in/yr
34. In a Positive Material Identification program, a material non-conformance is a test result
that:
A. Is not consistent with the selected alloy, except for materials found to be higher
alloy.
B. Indicates that the material was incorrectly specified.
C. Indicates that the material is corroding faster than design expectations.
D. Is not consistent with the specified alloy.
API 578 3.8
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35. Certified Mill Test reports are:
A.
B.
C.
D.
An important part of an overall material QA program
Required for all piping components in hazardous services
Acceptable as a substitute for positive material identification
Shall be part of the required documentation for all new alloy-piping systems.
API 578 4.2.4
36. Critical check valves should be visually and internally inspected to:
A. Ensure that they will stop flow reversals.
B. Determine if they are manufactured in accordance with API 599, Critical Check
Valves.
C. Determine if they are leaking beyond that allowed by API 598 Valve Testing
Standards.
D. Ensure that they are constructed of the proper metallurgy.
API 570 5.9
37. What is the remaining life of a piping system with a short-term corrosion rate of 0.010
in/yr (0.25 mm/yr) and a long-term corrosion rate of 0.005 in/yr (0.13 mm/yr)? A
minimum required thickness of 0.150” (3.8 mm), a remaining thickness of
0.210”(5.3mm), and an original thickness of 0.270” (6.8 mm).
A.
B.
C.
D.
3 Years
6 Years
24 Years
12 Years
API 570 7.1.1 RL = (0.210-0.150)/0.010 = 6 years
38. To evaluate the effects of crack-like flaws on the integrity of a piping system, one should
conduct:
A.
B.
C.
D.
A Shear Wave UT examination.
A Risk-Based inspection Assessment
A MPT or LPT examination
A Fitness-for-Service Evaluation
API 570 7.4(d)
39. API RP 579 provides procedures for:
A.
B.
C.
D.
Inspection practices for new construction of piping systems.
Material verification for new and existing alloy piping
Inspection, testing and quality assurance for new block valves.
The assessment of equipment for resistance to brittle fracture.
API 570 5.3.11
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40. “T required”, in the remaining life of a piping system, is equal to the required thickness at
the location being measured…
A.
B.
C.
D.
Plus the amount of metal loss calculated from the corrosion rate in the next run.
Plus twice the amount of metal loss calculated for the next operating run.
Before the corrosion allowance the manufacturer’s tolerance are added.
Including the corrosion allowance for the next operating run.
API 570 7.1.1
41. What is the level of examination in a Material identification program?
A.
B.
C.
D.
The percentage of welds to be radiographed.
The size of the lots to be examined by PMI.
The specified percentage of the number of components to be examined.
The ASNT level of certification of the examiners.
API 578 3.5
42. Statistical analysis employing point measurements is not applicable to piping systems
with:
A.
B.
C.
D.
Insufficient data covering each component
Short-term corrosion rates over 5 mils per year
Significant localized corrosion mechanisms
Alloy components unit run-length.
API 570 7.1.1
43. Positive material identification techniques on pipe components include:
A.
B.
C.
D.
Verification of mill certifications
Checking for material stampings
Laboratory chemical analysis
Checking for PFI color code.
API 578 5.2.3
44. Piping system corrosion rates shall be calculated on:
A.
B.
C.
D.
Always on a short-term basis
Circuit averaging basis
Either a short-term or long-term basis
Preferably on a long-term basis.
API 570 7.1.1
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45. Historically, the greatest number of significant PMI incidents in piping systems, have
occurred because of:
A.
B.
C.
D.
Cast iron substitutions in carbon steel systems
304 SS Substitutions in 316 SS systems
Cr-Mo Alloy in Carbon steel systems
Carbon Steel substitutions in low alloy systems.
API 578 4.3.2.1
46. PMI Test procedures should cover:
A.
B.
C.
D.
Basis for action for resolving non-conformance.
Test instrument ID or Serial number
Qualification requirements for PMI personnel.
Percentage of sampling tests required.
API 578 7.6
47. Inspection intervals for potentially corrosive injection points can be established by:
A.
B.
C.
D.
TML’s at the upstream and downstream limits of the injection point circuit.
Visual external inspection every 5 years
Thickness measurement determined by their classification
A risk-based inspection analysis in accordance with API 580
API 570 Table 6-1 note (a)
48. When aqueous developer is applied to a wet surface while performing liquid penetrant
examination, drying time may be decreased by using warm air.
A.
B.
C.
D.
And blotting is acceptable
But blotting is not permitted
That must raise the part temperature above 125 F (52 C)
That must raise the part temperature above 150 F (65 C)
ASME Section V T-675.2(a)
49. In Plasma-Arc Welding (PAW), a change in the type of groove is:
A.
B.
C.
D.
An essential variable.
An essential variable for corrosion resistant overlay
A nonessential variable
A supplementary essential variable.
ASME Section IX QW-257 (QW 402.1)
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50. If Material Verification tests are required on autogenous-welding alloy pipe, it is
necessary to conduct tests on:
A.
B.
C.
D.
Only the weld metal
Every pipe segment
Each lot of pipe
Only the base metal
API 578 4.2.6.2
51. The substitution material of hardenable alloy in carbon steel piping systems can result in:
A.
B.
C.
D.
Reduce corrosion due to the alloy upgrade.
Failure and loss of containment.
Improved resistance to brittle fracture at low temperatures.
Longer life because of higher strength.
API 578 1.2
52. In Gas Metal-Arc and Flux-Cored Arc Welding (GMAW and FCAW) for hard facing
overlay and corrosion-resistant overlay, a change in the nominal size of the electrode or
electrodes specified in the WPS is:
A. A nonessential variable provided the nominal electrode is not changed by more
than one size.
B. An essential variable
C. A nonessential variable
D. An essential variable if nominal electrode is changed by one size.
ASME Section IX QW-255.1 (QW 404.6)
53. Piping components found to contain flaws or degradations that might affect their load or
pressure containing capacity shall be:
A. Replaced immediately after an orderly and safe shutdown.
B. Evaluated for continued service utilizing Fitness-for Service.
C. Included in a high-risk category piping inspection program until they are
repaired.
D. Replace at the next available opportunity.
API 570 7.4
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54. For purposes of determining frequency and extent of inspection Class 1 Fluids are those
that:
A. Are operating below the flash point.
B. Will rapidly vaporize with atmospheric boiling temperatures below 50
degrees Fahrenheit (10 degrees Celsius)
C. Contain on-site strong acids and caustics.
D. Will rapidly vaporize with atmospheric boiling temperatures above 50 degrees
Fahrenheit (10 degrees Celsius)
API 570 6.2.1
55. In assessing piping systems for possible retroactive material identification programs
(PMI), one should consider all of the following consequence factors except:
A.
B.
C.
D.
toxicity to humans and the environment.
potential size of the release.
flammability of the product.
likelihood of material mixup.
API 578 4.3.2
56. In Plasma-Arc Welding (PAW), a change in the flow rate of the orifice or shielding gas
is:
A.
B.
C.
D.
a nonessential variable.
an essential variable for corrosion resistant overlay.
a nonessential variable for corrosion resistant overlay.
an essential variable.
ASME Section IX QW 257 (QW 408.21)
57. What qualification is required for piping weld repairs that are identified as requiring UT
examination by piping engineers or authorized inspectors?
A.
B.
C.
D.
ASNT Level III UT Shear Wave examiners.
ASNT Level II UT Shear Wave examiners.
Industry-qualified UT Shear Wave examiners.
API Certified Welding inspectors.
API 570 8.2.6
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58. Positive material identification on piping components:
A. can be done by checking mill certificates against the material stamping.
B. must include all fittings and pipe segments in CR-Mo piping systems.
C. must be done on 100 percent of all critical components indicated by risk
assessment.
D. can be done on any amount of material decided by the owner/user.
API 578 4.1
59. What is the short-term corrosion rate of a carbon steel piping system that was installed in
1983 with a nominal thickness of 0.395” (10 mm)? Before start-up, the measured
thickness was 0.375” (9.5 mm). The previous measurement was in 1993 and was 0.295”
(7.5 mm) and the last measurement in 2003 was 0.255” (6.5 mm).
A.
B.
C.
D.
2 MPY 0.002 in/ yr (0.05 mm/ yr)
4 MPY 0.004 in/ yr (0.10 mm/ yr)
6 MPY 0.006 in/yr (0.15 mm/ yr)
12 MPY 0.012 in/ yr (0.30 mm/ yr)
API 570 7.1.1 STCR = (0.295-0.255)/10 = 0.004 in/yr
60. When PMI is conducted on welding electrodes or wire samples from a lot or package of
alloy weld rods:
A.
B.
C.
D.
it is not acceptable to test weld buttons as an alternative.
five percent of the electrode or wire samples should be tested.
one electrode or wire sample should be tested.
Certified Mill Test reports can be substituted for the PMI examination.
API 578 4.2.6
61. Long-term and short-term corrosion rates should be compared to see which results in the
shortest remaining life as part of the data assessment by:
A.
B.
C.
D.
the owner/user.
an authorized or designated inspector.
an authorized inspector in consultation with a corrosion specialist.
the piping engineer.
API 570 7.1.1
62. When positive material identification (PMI) testing is required, portable X-ray
fluorescence spectrometer:
A.
B.
C.
D.
is the most effective technique to detect carbon (C).
is an effective technique to detect all common alloying elements.
cannot be used to detect elements lighter than sulfur (S).
can be used to detect elements lighter than sulfur (S).
API 578 5.2.1
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