API 510 – Pressure Vessel Inspector Certification Practice Test

These questions are part of the practice quiz. Start practicing

• In a weld build-up performed in a corroded area, if the tensile strength of the specified electrode is lower than the base metal, which requirement does NOT apply?
• When should an Inspector consult with a Corrosion Specialist?
• What action should be taken if preferential corrosion is found in a weld?
• Which entity is responsible for evaluating the need for pressure testing after alterations?
• When should the internal inspection interval always be reviewed?
• Vessels in cyclic service should be inspected primarily for:
• Which damage mechanism does NOT create general or localized corrosion?
• Which of the following is NOT required prior to an internal vessel inspection?
• A corrosion monitoring location (CML) is designated for which activity?
• What is the estimated remaining life of a vessel with a minimum thickness reading of 0.466"?
• Based on given thickness data for a 12 NPS nozzle, what is the calculated corrosion rate?
• Who must approve proposed materials for vessel alterations or major repairs?
• Which condition disqualifies the use of corrosion averaging in API 510 for a locally thinned area?
• How much refractory should be removed to check the condition of the vessel's internal surface during an Internal Inspection?
• Which of the following does NOT contribute to fatigue damage?
• In the RBI process, what are the two primary factors used to determine risk?
• What is the maximum inspection interval for a pressure relief device in normal service based on acceptable device performance?
• What is a primary consideration in determining the internal inspection interval based on RBI?
• Which of the following best describes an alteration in pressure vessels?
• Prior to performing any vessel alteration or temporary repair, who must approve all proposed NDE and testing?
• What additional factor must be considered along with wall thickness when determining allowable working pressure?
• What is the minimum allowed remaining shell thickness at the deepest pit if the current vessel wall thickness is 1.000" and the minimum required shell thickness is 0.800"?
• The inspection interval for buried vessels is determined by which of the following factors?
• What is needed when only a nozzle is pressure tested instead of the entire vessel after an addition?
• What is a requirement for all RBI assessments?
• Which damage mechanism creates micro-fissuring that leads to macro-cracking?
• Which of the following is NOT a significant factor in an RBI assessment of a pressure vessel?
• Who must ensure that temporary repairs planned will be suitable for the vessel's continued service?
• What is a requirement for individuals conducting an audit of the Owner/User's organization?
• Which of the following is a characteristic of UT testing?
• For insulated duplex stainless steel vessels, what temperature range indicates CUI is a concern?
• The API 510 corrosion averaging process can be used to evaluate a locally thinned area provided that there is no area that has a thickness less than:
• The intervals for relief devices are determined by which standard?
• All proposed materials for vessel repairs must be approved by?
• Which statement is true about the need to remove process deposits prior to Internal Inspection?
• During a RBI assessment, which of the following is not a significant factor in the Consequence of Failure?
• What is the maximum diameter for an examination point?
• What should be the maximum external inspection interval for a vessel with 3 years of remaining life?
• After what type of change is a pressure test normally conducted?
• Which statement is true regarding the statistical analysis of thickness data for vessels?
• Who should be involved in the approval process for MOC's affecting pressure vessel integrity?
• An internal inspection interval for a vessel in intermittent service is 8 years. When out of service, when should the next Internal Inspection be conducted?
• Which factors must be considered when evaluating the placement of a fillet weld patch?
• The remaining life of a vessel is 8 years. What is the maximum interval for the Internal Inspection?
• What must be done prior to conducting a pressure test on a newly altered vessel?
• Welding should NOT be performed on carbon steel or alloy materials with a carbon content exceeding what percentage?
• What is NOT a concern of the MOC process?
• Deviations from an inspection plan should be approved by the:
• Who is responsible for implementing an effective program for establishing Integrity Operating Windows (IOWs)?
• What is the maximum external inspection interval based on the vessel's remaining life?
• Who establishes the interval for the External Inspection?
• When installing an insert plate in a vessel shell, which requirement is NOT necessary?
• If the current vessel wall thickness is 0.500" and the minimum required shell thickness is 0.400", what is the maximum pit depth allowed?
• What is the recommended hydrotest pressure for a vessel built to ASME Section VIII, 1990 edition following an alteration?
• A vessel's shell has a current thickness of 0.525" and is corroding at 0.003 ipy. What thickness should be used to calculate the maximum allowed pressure for a 10-year inspection interval?
• In a vessel that moved from hydrocarbon service to chemical service, which thickness reading should be considered the "Initial Thickness" for corrosion rate calculation?
• Which of the following is NOT a factor in determining examination interval in a vessel's Inspection Plan?
• Which of the following is most commonly examined by Spot RT for full encirclement lap bands?
• Approval for a fillet weld patch should be obtained from which party?
• Which of the following is NOT a role of the API 510 inspector?
• What is the maximum inspection interval for a pressure relief device in clean, non-corrosive and non-fouling service?
• Which of the following is NOT required in a vessel's Inspection Plan?
• When is a pressure test required to be conducted?
• During the External Inspection, extra attention should be given to which of the following?
• What may happen if the external coating of a buried vessel is damaged during excavation?
• What is considered an API 510 Authorized Inspection Agency?
• When is an Inspector allowed to be the sole approver for interval deferrals?
• What must must happen if a part fails an inspection during a repair operation?
• When is an On-stream Inspection NOT allowed to substitute an Internal Inspection without an RBI assessment?
• Which periodic inspections are critical under API 510 standards?
• Which of the following methods is NOT acceptable for repairing a locally thinned area that is below acceptable thickness?
• Which area is NOT considered a most susceptible location for CUI damage on an insulated vessel?
• What should be done when a crack-like flaw in a weld is discovered during an in-service inspection?
• Who designates hold points during repairs and alterations?
• How should the corrosion averaging lines be drawn on a vertical vessel according to API 510?
• How often should each owner/user's organization be audited?
• During an RBI assessment of a pressure vessel, what are the two biggest factors of Consequence of Failure?
• Who is responsible for performing the External Inspection on a pressure vessel?
• For a vessel with 8 years remaining life, what is the maximum interval for external inspection?
• Which organization is primarily responsible for ensuring that repair and alteration activities are properly supervised?
• What is the maximum inspection interval for the Internal Inspection if no RBI analysis has been performed?
• What is the purpose of a fillet weld patch?
• Which of the following best defines an 'On-Stream Inspection'?
• A vessel is in non-continuous service. When can the Internal Inspection interval be based on "years of service" versus "calendar years"?
• Which of the following must authorize repairs to pressure vessels?
• When the tensile strength of the specified electrode is not as high as that of the base metal, what taper should be used for the weld build-up area?
• When recalculating the MAWP, which parameter influences the decision on how to address corrosion?
• What term describes work that replaces major parts of the pressure boundary?
• The design of vessel components being replaced must meet which requirement?
• What is the primary cause of fatigue damage in pressure vessels?
• How is a defect defined in the context of pressure vessel inspection?
• The remaining life of a vessel is 12 years. What is the maximum interval for the Internal Inspection?
• What type of corrosion is particularly a concern in sour service conditions?
• Which of the following is NOT a factor affecting the inspection interval for buried vessels?
• What does API 510 specifically focus on?
• How is an imperfection defined in the context of pressure vessels?
• What damage mechanism does NOT create surface connected cracks?
• What must the Owner/User maintain according to API 510?
• How is internal distribution piping categorized?
• Using the provided thickness data, how many years is the vessel's remaining life estimated to be?
• Who must ensure that all inspectors meet training standards?
• If a vessel has a 96" ID and a corroded area, what is the maximum length for corrosion averaging?
• What type of repairs might not need prior general authorization?
• Who is responsible to decide whether an RBI assessment will be used to determine inspection intervals for a pressure vessel?
• What is an essential requirement for all in-service pressure relief devices in the petrochemical industry?
• A 14 NPS nozzle is to be added to a vessel shell that is rated for 100 psig at 650°F. What is true about this work?
• What is the maximum averaging length for corrosion in a vessel with a 180" ID?
• Fillet weld patches installed on a vessel shell should be:
• Which form of degradation is most easily missed during a visual examination?
• When can the API 510 corrosion averaging process be used to evaluate a locally thinned area?
• If the remaining life of a vessel is 12 years, what is the maximum interval for the external inspection?
• What is one benefit of using digital UT for measuring thickness in vessels?
• What is the main purpose of corrosion averaging in pressure vessels?
• Prior to performing a vessel repair, who must approve all proposed NDE?
• Which of the following is primarily assessed during a pressure vessel inspection?
• When does an RBI assessment NOT need to be repeated?
• The number of CMLs can be eliminated or reduced if:
• Which is NOT a method of generating atomic hydrogen?
• Where can additional guidance on the inspection and repair of flanged joints be found?
• What is the primary purpose of the Authorized Inspector in the vessel alteration process?
• What is required before the start of any pressure vessel repair or alteration work?
• Operations should inform Inspectors or Engineers when which of the following occurs?
• What does CML stand for in the context of pressure vessel inspection?
• Which of the following is NOT required for a temporary repair made to a vessel?
• In a vessel with a 48" ID, what is the maximum length for corrosion averaging on a localized corroded area?
• When developing an inspection plan, who should identify specific damage mechanisms and their locations?
• What is a required action for vessels that are retired in place?
• Fillet welded patches can remain in place past the next maintenance opportunity only if:
• Which statement about plate lining is NOT correct?
• Consultation with whom is necessary when repairing cracks with high stress concentrations?
• What is the minimum allowed metal temperature during a hydrotest on a vessel that is 1-1/2" thick?
• Who is responsible for developing the inspection plan for a pressure relief device?
• What factor primarily determines if statistical thickness data can inform on corrosion rates?
• Which of the following is categorized as a permanent repair for a pressure vessel?
• Under what condition can an inspection interval be deferred?
• Who should be made aware of deviations outside the OIWs?
• What must be ensured when repairs to stainless steel cladding are performed?
• When should pressure vessel inspections be scheduled?
• For which class of materials is it recommended that fillet weld patches be avoided?
• An inspector may give prior general authorization for repairs that will NOT require what?
• What is a requirement for a relief device repair organization under API 510?
• What type of joint efficiency is allowed for a full encirclement lap band?
• Who is ultimately responsible for ensuring that the repair work does not compromise the safety of the vessel?
• If an existing vessel component fails due to incorrect material substitution, who should assess other components for correct metallurgy?
• In the context of pressure vessels, what is a critical aspect of maintaining CML records?
• For a vessel with austenitic stainless steel cladding, what is the maximum allowed water temperature during a hydrotest?
• What should be included in a comprehensive inspection report per API 510?
• A non-penetrating nozzle cannot be used to:
• What is the name of the mandatory eye test for inspectors?
• A fillet weld patch is installed on a vessel with a 144" inside diameter and a wall thickness of 0.750". What is the minimum allowed spacing between this patch and another nearby patch?
• At what temperature should special procedures be implemented for accurate UT readings?
• What generally triggers the need for inspection reassessment of internal inspection intervals?
• RBI assessments should be done in accordance with:
• What is one of the main responsibilities of the Owner/User regarding pressure vessels?
• The maximum dimension of a fillet weld patch should not exceed:
• What is the maximum allowable joint efficiency for full encirclement lap bands?
• What designation process occurs for hold points during repairs?
• What is the primary purpose of conducting thickness measurements on pressure vessels?
• Which repair method is not considered permanent?
• Who is responsible for performing Pressure Material Inspections (PMI)?
• What should holes in repads do in in-service vessels?
• Who needs to review the repair procedure when stainless steel cladding corrodes and must be repaired by welding?
• Who is responsible for maintaining certification records for NDE examiners?
• When an RBI assessment extends the internal inspection interval, when must it be reviewed?
• When performing remaining life calculations for a corroded area, which reading should be used as the "current thickness"?
• Which type of insulation is MOST likely to absorb and hold water?
• Which of the following is NOT required to be included in a vessel's Inspection Plan?
• What should be done after a leaking flange is repaired and leaks again?
• A corroded area in a vessel is 0.300" deep. What is the correct thickness of the weld repair using an E-6010 electrode if the base metal is 0.750" thick?
• When determining the corrosion rates for a vessel, who typically selects whether to use short-term or long-term rates?
• Which material is most prone to temper embrittlement?
• Which factor is crucial in evaluating the integrity of pressure vessels?
• What is the minimum allowed metal temperature during a hydrotest on a vessel with a replacement 2.5" thick head?
• What "Optional Item" should be part of a vessel's Inspection Plan?
• Before conducting an inspection, what should the inspector do?
• What is the minimum allowed corner radius for a vessel insert plate?
• During a process outage, how is a vessel classified?
• Who should be consulted about placement and number of CMLs for vessels with suspected localized corrosion?
• What is the preferred method for establishing the corrosion rate for a vessel in a new service?
• Who should develop the inspection plan for a pressure vessel?
• A full encirclement lap band typically should not cover which of the following?
• Which of the following methods is considered the least desirable for assessing corrosion rate in new service?
• Which material property is specifically affected within the heat affected zone?
• A widely scattered pitting on a vessel can be ignored if:
• CMLs should always be:
• On-stream inspections should be performed under which condition?
• What must be performed after a vessel shell is repaired with an insert plate indicated by a nameplate designation of RT-1?
• What is the term for base metal whose mechanical properties or microstructure has been altered by welding or thermal cutting?
• During the repair of a relief device, who designates hold points?
• Overdue inspection recommendations according to API 510 are:
• What is the minimum amount of verification an inspector shall perform for new materials being used according to API 510 during repairs?
• The materials used for vessel repairs or alterations must meet which requirement?
• Which type of equipment is NOT covered by API 510?
• A minimum number of CMLs on a vessel is acceptable when the:
• When the corrosion rates differ, who should determine which rate to use for remaining life calculations?
• Which of the following is NOT a requirement when performing weld build-up in a corroded area?
• Which of the following is NOT a condition that requires a review of the internal inspection interval?
• All on-stream work performed by an Examiner must be approved by whom?
• Who provides assurance that all pressure testing meets requirements?
• What is the role of pressure testing in the lifecycle of a pressure vessel?
• Who is primarily responsible for ensuring compliance with API 510 requirements?
• Fillet weld patches must have what minimum radius for corners?
• Which of the following is NOT a requirement for deferring inspection intervals?
• When conducting thickness readings, what is the minimum required number of thickness readings that should be taken?
• A fillet weld patch is installed on a vessel with a 64" inside diameter and a wall thickness of 0.370". What is the minimum allowed spacing between this patch and another nearby patch?
• For a vessel with a 36" ID, what is the maximum length over which corrosion averaging can be applied?
• What type of reading can be affected by surface roughness during UT?
• An NDE examiner can assist in the Internal Inspection when approved by whom?
• Thickness measurements are primarily conducted to verify the:
• The remaining life of a vessel is 24 years. What is the maximum interval for the Internal Inspection?
• Which of the following is NOT a common cause of stress corrosion cracking?
• What examination technique is recommended for measuring the nozzle wall thickness of an insulated 6 NPS nozzle with localized thinning?
• When discrepancies occur during inspections, which party should rectify the problem according to regulations?
• After completing an alteration, who should approve the finished work?
• Before starting work on pressure vessels, who must authorize repairs and alterations?
• Which of the following is primarily the responsibility of the Owner/User?
• What is the most important factor when selecting NDE for future inspection?
• How predictable is CUI damage in insulated vessels?
• What is the maximum remaining life allowed before an Internal Inspection must be conducted instead of an On-stream Inspection?
• Who should be consulted if CMLs on a vessel are substantially reduced?
• What is required for all in-service pressure vessels in the petrochemical industry?
• If a vessel's service has changed, which option is NOT acceptable for establishing the new corrosion rate?
• What is the minimum number of thickness measurements needed in the corrosion averaging process per API 510?
• What is a significant factor in developing an inspection plan?
• How often must inspectors undergo an eye test?
• Prior to the Internal Inspection, which must be done?
• In terms of repair materials, what must be ensured prior to conducting vessel repairs?
• Who is responsible for performing a vessel On-stream Inspection?
• Which statement best describes the limitations of repair depths in weld build-up?
• What type of repair is not intended for use on pressure vessels?
• What type of testing is performed at a specified pressure based on a construction code formula?
• What is generally required for the Internal Inspection of a pressure vessel to ensure compliance?
• Which of the following is NOT a good reason for substituting a pneumatic test for a hydrotest?
• All alterations to pressure vessels must be authorized by whom?
• Which issue can arise from flange leaks in certain fluids?
• When the remaining life of a vessel is 3 years, what is the maximum inspection interval for the Internal Inspection?
• In what scenario would it be acceptable to extend the internal inspection interval beyond standard guidelines?
• According to API 510, how often should interval deferrals for a specific Owner-User occur?
• What is the recommended practice regarding insulation removal during an external inspection of an insulated vessel?
• For minor routine repairs, what can an inspector do?
• Where is thermal fatigue more likely to occur after the installation of a full encirclement lap band?
• Which factor does NOT influence the inspection interval of a pressure vessel?
• The inspector should be familiar with which of the following?
• In a thickness exam, which CMLs must always be included?
• When calculating the maximum pressure on an in-service vessel component, which thickness should be used?
• Who is responsible for implementing a Management of Change (MOC) process?
• Which document offers additional guidance regarding material verification?
• What is the maximum length of time for an internal inspection interval determined by RBI assessment?
• If an inspection interval is deferred for 16 months, who must concur with this decision?
• Which of the following is NOT a requirement of the Owner/User's quality assurance program?
• What type of repair is allowed if the original vessel design does not accommodate for more than 50% repair depth?
• Who has the authority to change or delete inspection recommendations after review?
• What are overdue inspection intervals according to API 510?
• Which of the following CMLs placement criteria minimizes potential failure risk?
• Who establishes the interval for the Internal or On-Stream Inspections?
• After what actions should a pressure test be conducted on a vessel?
• During a vessel repair, who is responsible for approving the work at designated hold points?
• What is the preferred examination technique for determining vessel wall thickness in a 60" I.D. vessel with localized thinning?
• What is a common consequence of exceeding the acceptance criteria for defects?
• What type of venting is intended to relieve excess pressure from a vessel?
• Which of the following vessels is most likely to be affected by thermal fatigue?
• What is required of personnel performing the External Inspection?
• Which aspect is critical in preventing thermal fatigue in welded patches?
• Who is responsible for ensuring that personnel performing thickness readings are trained and qualified?
• Who approves the methodologies for non-destructive examinations (NDE) before repairs?
• What is the term for using a documented work process to extend an interval beyond its original date?
• Fillet weld patches on a vessel are NOT allowed:
• During the inspection of a newly installed vessel, which of the following is NOT a requirement?
• When repairs and alterations are being conducted, which individual or organization is responsible for validating that the materials meet the requirements of API 510?
• What is the typical function of a heat exchanger in pressure vessel operations?
• What type of loadings primarily causes fatigue damage in pressure vessels?
• Which requirement is NOT necessary for the inspector prior to an inspection?
• Which of the following damage mechanisms can occur due to high-temperature exposure?
• Flange bolts are considered unacceptable if the lack of engagement exceeds what?
• What should be done when pneumatic testing is performed after a major repair on a vessel that has a shell thickness of 0.375"?
• What document provides guidance on the design of welded leak boxes or clamps?
• Under which circumstance is a review of the internal inspection interval NOT required?
• How often should a pressure vessel undergo a thorough inspection according to standard practice?
• What action should an Owner/User take regarding non-conformances identified by an audit team?
• CUI damage on carbon steel and low alloy materials usually appears as what form of damage?
• What does MAWP stand for in pressure vessels?
• Before what type of changes should a Management of Change (MOC) process be completed?
• When drawing lines for corrosion averaging, to what should the lines NOT cross?
• In the context of pressure vessel inspection, what does CUI stand for?
• Which damage mechanism is associated with general or localized corrosion?
• Which factor does NOT contribute to poor accuracy when performing UT thickness gauging?
• Which damage mechanism creates sub-surface cracking?
• During vessel repairs, all examination results must be accepted by which party?
• How often should a pressure vessel typically be inspected according to API 510 guidelines?
• The NDE method called Advanced Ultrasonic Backscatter Technique is useful for detecting:
• When may inspections from ports be substituted for the Internal Inspection?
• A Management of Change (MOC) system should review changes made to what?
• Where do brittle fractures most commonly occur?
• An On-Stream Inspection may be substituted for the Internal Inspection provided this substitution is approved by whom?
• In the context of corrosion averaging, what is primarily evaluated?
• What is required if welding is performed on carbon steel with a carbon content above 0.35%?
• When weld build-up is performed in a corroded area, which requirement must be observed?
• At what general corrosion rate can an On-stream Inspection be substituted for an Internal Inspection without an RBI assessment?
• Fillet weld patches may be installed on:
• What qualification is necessary for examiners performing UT flaw detection on welds on an in-service vessel?
• The use of a fillet weld patch on a vessel's pressure boundary requires approval from:
• Who must approve the installation of all new nozzles in an in-service vessel?
• CUI is a concern for insulated carbon steel vessels operating within which temperature range?
• Which of the following inspection organizations is NOT considered an acceptable API 510 Authorized Inspection Agency?
• If NDE is substituted for a pressure test after a major repair on an in-service vessel, who must approve this substitution?
• When evaluating a vessel, which factor is NOT a consideration for determining CML locations?
• When excavating around a buried vessel for thickness measurements, what must be avoided?
• During a risk assessment, which of the following is NOT a significant factor in the Probability of Failure?
• Which of the following conditions would justify fewer CMLs on a vessel?
• What is the purpose of a pressure test conducted after maintenance work?
• The NDE method called Alternating Current Flux Leakage is useful in finding:
• For a full encirclement lap band, what is the required joint efficiency for the circumferential fillet weld?
• Which condition would prevent the substitution of an On-stream Inspection for an Internal Inspection?
• When repairs and alterations are being conducted, which individual or organization is responsible for Quality Control?
• Which of the following insulated vessels is most likely to experience corrosion under insulation (CUI)?
• Which of the following scenarios might require an increase in the number of CMLs on a vessel?
• What is required for all NDE equipment used in petrochemical facilities?
• Where is a great place to check for damage on vessels that are subject to fatigue?
• Who is responsible for determining whether process deposits should be removed prior to the Internal Inspection?
• Which entity ensures that the Authorized Inspection Agency operates according to API 510 requirements?
• What does MAT signify in the context of pressure vessels?
• What action should be taken if short-term corrosion rates change significantly?
• What are established limits for process variables affecting equipment integrity called?
• Regarding weld build-up repairs, what information must the Inspector provide before allowing the repair?
• Who must approve the reassessment of an RBI assessment that extends the internal inspection interval?
• For repairs to ASME Section VIII Div. 2 vessels, authorization must come from?
• CUI of austenitic and duplex stainless steel vessels is most commonly associated with which of the following?
• What should an inspector review before performing an internal inspection?
• Who is responsible for performing the Internal Inspection on a pressure vessel?
• For a weld build-up repair, which requirement is crucial for the electrode used?
• What is the effect of cyclical service on the corrosion evaluation per API 510?
• Which of the following is a role for the API 510 inspector?
• Who should be consulted if CMLs on a vessel are eliminated?
• Which of the following requires approval by both the Inspector and the Engineer when used on a vessel?
• If the carbon content of carbon steel materials exceeds 0.30%, what may be needed to prevent cracking during welding?
• What is the maximum pit depth allowed if the current vessel wall thickness is 0.800" and the minimum required shell thickness is 0.600"?
• Fillet welded patches should NOT be used to:
• Which requirement is NOT necessary for organizations that repair relief devices?
• When is the API 510 corrosion averaging process not applicable to evaluate locally thinned areas?
• What type of employee must an Owner/User employ for pressure vessel inspections?