Browse all practice questions for the API 572 RP – Inspection of Pressure Vessels Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

API 572 RP – Inspection of Pressure Vessels Practice Test 2026 - Free Pressure Vessel Inspection Questions and Study Guide course image
All questions

These questions are part of the practice quiz. Start practicing

  • How are vessel shell rings typically manufactured?
  • Who typically decides to implement RBI methodologies?
  • Vessels containing amines are primarily subject to what type of damage?
  • High temperature sulfur corrosion tends to appear as what type of damage?
  • What is the term for a break or void in a paint coating?
  • Which type of insulated vessel has the highest likelihood of experiencing CUI?
  • What should be determined when coke deposits are found in a vessel?
  • What is a primary purpose of conducting refractory inspections?
  • In terms of maintenance and inspection, what is essential for ensuring ongoing integrity of pressure vessels?
  • What is a potential consequence of using poor quality materials in construction?
  • Titanium tubes are often found in which type of process?
  • Which factor is generally prioritized in risk assessments for pressure vessels?
  • What is a simple way to estimate the depth of a pit in a vessel?
  • What is typically the most common cause of out of roundness in existing exchanger shells?
  • What might bulged metallic linings result from in a pressure vessel?
  • In a caustic storage vessel, where is caustic embrittlement least likely to occur?
  • What can cause tubes in air coolers to buckle during operation?
  • Where do exchangers in cooling water service experience the highest corrosion rates?
  • What is a typical location that may exhibit corrosion in a caustic storage vessel?
  • During an internal inspection, metallurgical examination at a hot spot on a vessel should be conducted if the metal temperature has exceeded what threshold?
  • What is the primary impact of damaged column trays on a column operation?
  • Which tool is commonly employed to discover breaks in a coating?
  • What condition primarily leads to temper embrittlement in materials?
  • For a vessel subject to uniform corrosion, what is the minimum number of thickness measurements required?
  • When assessing a vessel for integrity, which element is crucial?
  • What does the presence of residual water after a hydrotest indicate about potential issues?
  • Which aspect of pressure vessels must often be documented for regulatory purposes?
  • If a vessel has an internal refractory lining, what can be inferred about checking the condition of the base metal?
  • What is the initial step to take during an internal inspection of a vessel?
  • Which type of corrosion is likely to affect the upper shell and top head of a distillation tower?
  • Which method is not acceptable for checking the temperature of a hot spot on a refractory lined vessel?
  • What is the suggested minimum number of UT examination points for a small vessel with slight deterioration?
  • Which testing method is commonly used to detect carburization and decarburization?
  • What type of examination should be used for guy wires supporting tall vessels?
  • How should vessel grounding connections be inspected?
  • What is a common method to check the base metal condition under a deteriorated lining?
  • Prior to the internal inspection, what should be the status of vessel internals?
  • What condition may cause fatigue in vibrating level bridles?
  • Why are light taps with a hammer recommended during inspections of metallic linings?
  • What tool is primarily used to check for buckling in support columns?
  • Which of the following does not contribute to cracking in concrete foundations?
  • What can cause a bulge in fireproofing material?
  • If a vessel is structurally sound but corroded, what can be done regarding its operation?
  • What type of cracking should be monitored on existing stainless steel flanges?
  • Which of the following is a typical consequence of inadequate inspection of pressure vessels?
  • For insulated austenitic stainless steel vessels, what is the temperature range where CUI is a concern?
  • Which exchanger component is expected to have a higher corrosion rate?
  • Which type of steel is most likely to experience cracking issues?
  • What is a frequently overlooked issue that occurs during routine inspections of pressure vessels?
  • Which testing method is effective for checking disbonded fireproofing?
  • What characteristic of a foundation can be assessed to determine the need for repairs?
  • What occurs if the voltage on a spark tester exceeds the dielectric strength of a coating?
  • What type of non-destructive testing is best suited for detecting subsurface flaws?
  • What type of degradation are deaerators used for boiler feed water especially prone to?
  • Which component is most likely to be affected by excessive settlement of a vessel foundation?
  • Where is caustic embrittlement most likely to occur?
  • What should be done if deterioration is expected behind internal components?
  • What kind of stress is exacerbated in exchanger components subjected to thermal cycling?
  • What stamp is required for a repair organization to meet the National Board Inspection Code?
  • Which fabrication method is sometimes used for constructing vessel shells and does not create a longitudinal shell weld?
  • A vessel's U-1 form indicates a new shell thickness of 0.500" with a corrosion allowance of 0.125". What can be inferred about the minimum required thickness?
  • During an internal inspection of a large vessel, the inspector discovers a significant coke deposit. What is the next appropriate action?
  • What can be a consequence of ignoring visible damage in refractory linings?
  • Small hair-like cracks in concrete can become problematic if they do what?
  • What are the two primary purposes of refractory linings?
  • What is an important consideration when inspecting pressure vessels?
  • What should the inspector confirm about the vessel's operating conditions before an inspection?
  • If shell distortion is found at a nozzle, what should be inspected next?
  • What is the common application of metallic liners in pressure vessels?
  • What is a very effective technique for detecting surface cracks?
  • What method should be used to check for fatigue cracking in a vessel operating in cyclic temperature service?
  • What type of construction is used for shells with high design pressures?
  • Which of the following is true about hammer testing?
  • What type of corrosion might occur in areas directly below the liquid level of a vessel containing an acidic corrosion product?
  • When is it acceptable to skip insulation removal during an external inspection?
  • What is the typical pressure range used for high pressure water blasting when cleaning vessels?
  • When assessing the condition of the refractory lining, what is the importance of checking the underlying base metal?
  • Where should an inspector consider getting thickness readings if a vessel lacks a thickness history?
  • What is the maximum number of tubes that can be plugged in a tube bundle without affecting heat transfer?
  • Why is maintaining adequate heat transfer crucial in tube bundles?
  • Corrosion on an exchanger shell is often found at the location of:
  • Which method can be used to check for metallurgical damage at a hot spot?
  • Why is wet fluorescent magnetic particle testing often preferred for certain types of cracking?
  • One of the properties of a solid alloy used in a pressure vessel is its ability to withstand:
  • Which document serves as a guideline for evaluating various forms of degradation in pressure vessels?
  • Which method is commonly used to detect loose or cracked metallic linings?
  • Which document should be followed when using breathing air in a confined space?
  • At what temperature range is CUI a concern for insulated carbon steel vessels?
  • What is the standard method for inspecting tower trays?
  • Which of the following does not need to be reviewed by the inspector prior to a vessel inspection?
  • What is the critical temperature range for CUI in insulated low alloy steel vessels?
  • Where do most cracks typically occur in pressure vessels?
  • What is another effective method to detect hydrogen blisters?
  • What does a thickness measurement below a specified value indicate about a vessel?
  • What is the primary concern with regards to acidic corrosion products in storage vessels?
  • Cooling water tubes are often made of which of the following materials?
  • Which non-metallic material is sometimes used to construct vessels for corrosive services?
  • What is the minimum spacing required between clips at the end of a guy wire?
  • If a vessel can be derated due to corrosion, what does this imply about its operation?
  • Erosion on a surface is characterized by which appearance?
  • In which situation would an inspector advance without reviewing previous inspection details?
  • Under what temperature condition is the inside of a vessel skirt more susceptible to corrosion from condensed moisture?
  • How frequently should refractory linings be inspected for wear and damage?
  • When should pressure vessel inspection intervals be reviewed?
  • If major cracking is found in a concrete foundation and vessel settlement is ruled out, what is a likely cause?
  • What aspect should be included in an effective inspection plan?
  • What is the minimum internal or external pressure below which most pressure vessel codes do not apply?
  • What factor is critical in assessing vessels for caustic embrittlement?
  • What problem commonly occurs to the base metal when a refractory lining cracks?
  • What is a common method for detecting small blisters on a vessel's surface?
  • What often limits the operational time of an operating unit?
  • Which type of service would most likely not utilize non-metallic vessels?
  • Which of the following NDE methods is not suitable for detecting surface breaking cracks?
  • Prior to inspecting a vessel, the inspector should become familiar with the vessel's?
  • What is a significant concern related to process deposits in pressure vessels?
  • What condition enhances the risk of hydrogen blistering in vessels?
  • Which material is most commonly used for making pressure vessels?
  • Which NDE method(s) may cause problems in a confined space by displacing breathing air?
  • Which type of pressure vessel inspection focuses on identifying wear over time?
  • Non-metallic vessels are sometimes utilized in which of the following services?
  • What is the maximum allowable resistance to ground for a vessel grounding system?
  • Which service is least likely to promote cracking in equipment?
  • Which inspection practice is recommended to ensure degradation is not missed?
  • Corroded anchor bolts can be evaluated using which of the following methods?
  • What type of weld metal overlay is typically used for hydrotreater reactors?
  • What should existing slip on flanges be checked for during inspection?
  • What is the maximum diameter for an examination point on a pressure vessel?
  • Which inspection method is indicated for checking details on welded areas in cyclic temperature operation?
  • Where is soil-to-air corrosion typically most severe?
  • In an exchanger, where is accelerated corrosion most likely to occur?
  • Refractory is often attached to a vessel shell using which method?
  • What type of temperature measurement is generally considered more accurate for assessing hot spots on vessels?
  • Which coating failure is often overlooked during visual inspections?
  • Chloride corrosion is particularly problematic in which materials?
  • What is a primary factor influencing the lifespan of pressure vessels?
  • What is the recommended maximum resistance to ground for a vessel grounding system?
  • What is a common requirement when performing inspections on insulated vessels?
  • What is the significance of the corrosion allowance specified in vessel design?
  • How can blisters on a vessel shell be easily detected?
  • What testing methods are generally used to inspect tray supports and baffles?
  • Which material is seldom used to make a pressure vessel but is common in heat exchanger tubes?
  • What are two primary reasons for using non-metallic liners in pressure vessels?
  • Vessel grounding connections are primarily established to provide a path for electrical current from which source?
  • What is a critical step before conducting a hydrotest on a bundle?
  • Prior to inspecting a vessel, what must the inspector understand?
  • In the scenario of a vessel clad with a stainless steel liner, what does a corrosion rate of 0.002 ipy for the corrosion tab imply about the SS liner's corrosion rate?
  • What examination method is frequently used to assess in-service anchor bolts?
  • What is a common feature of vessels designed to withstand external pressure?
  • What is the typical pressure used for high-pressure water blasts when cleaning vessels?
  • What method can be used to detect creep damage in pressure vessels?
  • Under what circumstances is CUI considered an inspection concern for insulated vessels operating at 500°F?
  • When sludge settles at the bottom head of a vessel, what corrosion mechanism is likely to occur?
  • Catalytic reformer vessels may experience creep damage if the operating temperature exceeds which value?
  • What are the two primary factors of risk associated with pressure vessels?
  • Which aspect is critical to assess when examining a metallic liner’s integrity?
  • What is the most important factor when selecting NDE methods for an inspection?
  • What is the purpose of allowing floating ends of exchangers to move freely?
  • Which method is often utilized to detect metallurgical changes in the base metal?
  • What is the recommended method to identify cracking in deaerators?
  • What is a significant advantage of using FRP in corrosive environments?
  • Where are cracks most likely to occur in a pressure vessel?
  • In a heavy wall hydroprocessing reactor, which issue is predominantly concerning?
  • What is the definition of an alteration in the context of pressure vessels?
  • What two non-destructive testing techniques can help locate moist insulation?
  • What does the degree of surface preparation required for an external inspection depend on?
  • How often should diameter measurements of a vessel skirt be taken to check for distortion?
  • Which type of steel is susceptible to temper embrittlement?
  • What typically causes corrosion associated with reboilers?
  • What is a primary benefit of having an inspection schedule for pressure vessels?
  • What is the purpose of determining tube sheet thickness prior to a hydrotest?
  • Where is a common place for corrosion to occur when using a reboiler with a fractionation column?
  • What does a repair involve in the context of pressure vessels?
  • Why should guy wires supporting tall vessels be occasionally lubricated?
  • Which of the following is not a way metallic liners are attached to the base metal?
  • Which of the following is not considered a significant factor in atmospheric corrosion?
  • Areas opposite inlet nozzles in vessels may be subjected to which type of degradation?
  • Magnetic flux scanning techniques can be used to detect wall loss on vessels up to what thickness?
  • What inspection methods should be used for vessel internal piping?
  • For internal inspections, what additional information is beneficial to gather?
  • Where is the maximum allowable working pressure (MAWP) of a vessel defined?
  • In pressure vessel inspection, what is the purpose of identifying damage mechanisms?
  • Which of the following is a key reason to inspect a pressure vessel?
  • If steam is injected into a vessel, which area is most susceptible to corrosion?
  • What is one of the most effective methods to prevent external corrosion on structural steel?
  • What common issue can arise from the use of refractory linings in pressure vessels?
  • What primary factor can influence the rate of corrosion in metal structures?
  • Where are the most likely locations for paint failures on pressure vessels?
  • Which type of vessel is particularly prone to damage and expensive to repair?
  • Which inspection method should be avoided on vessels containing 5% H2S?
  • In pressure vessel inspections, what role does visual inspection primarily serve?
  • What should be done if residual water remains in the exchanger after hydrotesting?
  • What is the primary purpose of metallic linings in pressure vessels?
  • When inspecting for stress corrosion cracking, what additional cleaning method may be required?
  • Which location is not commonly associated with crevice corrosion?
  • What condition does bulged metallic linings often indicate?
  • What is the primary goal of pressure vessel inspection?
  • Which document is essential for guidance on conducting RBI assessments?
  • What condition can a significant corrosion rate of a corrosion tab suggest about the vessel's liner?
  • What is the minimum number of clips required at the end of a guy wire after a 180° bend?
  • What area is most susceptible to corrosion when an impingement plate is installed on an exchanger bundle?
  • Austenitic stainless steels are particularly susceptible to which type of corrosion?
  • What is a common method to detect corrosion in areas above the liquid level in vessels with acidic contents?
  • What type of damage can be revealed by conducting hardness testing on the base metal?
  • What inspection technique is often utilized for identifying surface blisters effectively?
  • When are pressure vessel shells and heads typically made from solid alloy material?
  • Which type of crack signifies a more severe issue in concrete foundations?
  • In addition to resisting erosion, what else do non-metallic liners aim to achieve?
  • Which of the following is a common method for cleaning vessels prior to inspection?
  • Which inspection method is preferred for detecting structural weaknesses in pressure vessels?
  • What typically causes distortion in anchor bolts?
  • What is the primary purpose of installing a metallic liner inside a vessel?
  • How can small hydrogen blisters on metal surfaces be easily detected?
  • What should be checked on existing ring joint flanges?
  • How often are vessel settlement measurements typically scheduled?
  • What type of corrosion often occurs at bolts and nuts?
  • What common tool is used to inspect refractory?
  • When can external rust on anchor bolts be indicative of problems?
  • During a pressure vessel inspection, what should vessel sight glasses and auxiliary equipment be checked for?
  • Sulfidation is a common concern at which location in a crude unit?
  • During an external inspection of an insulated vessel, how much insulation should be removed to check the surface condition?
  • In terms of inspection, what is a critical factor to investigate in regards to a hot spot on carbon steel vessels?
  • What is a common damage mechanism in equipment exposed to wet hydrogen sulfide environments?
  • Which tool is beneficial for finding deteriorated refractory lining while the vessel is in service?
  • When leakage of a metallic liner is suspected, what is crucial to determine?
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy