API 570 Piping Inspector Practice Test

These questions are part of the practice quiz. Start practicing

• What are the most common forms of corrosion under insulation?
• Which components are most commonly involved in material mixups?
• What is the limit of soil-to-air distance in air away from the interface?
• A PQR test coupon with a shell thickness of 'T' can generally be used to qualify a wall thickness on the WPS up to:
• What electrode type is used in SMAW for low hydrogen applications?
• API 570 provides three methods to determine probable corrosion rates for new installations or service changes. Which API 570 reference is cited for this method?
• Most brittle fractures occur at temperatures?
• Under what condition is a pressure test required?
• In severe refinery services which type of pipe is normally used?
• Low alloy steels can contain up to what percentage of chromium?
• What are the modes of GMAW (Gas metal arc weld)?
• Which code governs NDE procedures guidelines?
• Which roles are authorized to approve proposed design, execution, materials, welding procedures, examination, and testing?
• Which code is used for Fitness for Service assessment including damage mechanisms?
• Important requirement of Material verification program?
• The negative mill tolerance value of -12.5% for seamless pipe primarily affects which dimension?
• Who approves welding procedures qualified by others?
• During pipe repairs, which welding discontinuity is always unacceptable?
• Piping stress analysis identifies highly stressed components and predicts thermal movement. How should this information be used in inspection planning?
• Which material must use low-chloride hydrotest water and be drained after hydrotest?
• Nickel alloys are what percent nickel?
• Which statement best describes the risk of CUI under insulation?
• During a hydrotest, all joints should be:
• Materials subject to temper embrittlement?
• Hydro test water pH to reduce MIC risk should be greater than
• Which code governs PMI (positive material identification)?
• What is the minimum hydrotest duration to evaluate the integrity of a buried pipe?
• Which welding process is performed with a filler rod added by hand?
• Which code applies to Welding on In-Service equipment containing Flammables (hot tapping)?
• Which standard governs MAWP calculations for known materials?
• Which statement best describes who must approve all proposed methods of welding procedures and testing?
• Which option represents the 3G welding test position?
• Mixed grades of carbon steel piping in hot corrosive oil service are susceptible to service-specific and localized corrosion above what temperature and oil sulfur content?
• Which welding process can be automated?
• Which material is subject to stress corrosion cracking in sensitized form?
• Typical external corrosion rate for dry rural environment is less than
• For soil-to-air inspections on uncoated lines, excavation depth is recommended at:
• Mill tolerance of seamless pipe?
• Which piece of information is not required by the code for MAWP calculations of known materials?
• What are the two most common carbon steel pipe materials?
• Per B31.3 how much of the fabrication should be visually examined for a pipe in severe cyclic service?
• True or False: A brittle fracture grows very rapidly with minimum deformation prior to failure.
• Which of the following is Martensitic stainless steel?
• Which materials are subject to chloride stress corrosion cracking?
• Hole size that must be visible in RT when using Hole-type IQI?
• According to ASME/ANSI B16.5, flanges from plate materials can only be used for:
• Which of the following is Ferritic stainless steel?
• During pipe erection, for a pneumatic test on Normal Service piping, what fraction of joint assemblies should be examined?
• Which material has the highest resistance to sulfidation?
• What is the suggested interval for evaluating soil corrosivity of buried pipe without CP?
• In a deterioration scenario where both corrosion and erosion are present, which three areas should be inspected to detect the combined damage?
• Can the inspector give prior general authorization for limited or routine repair activities?
• Low alloy steels can contain up to how much chromium?
• What is the maximum flange size covered by B16.5?
• What is the length of time before an API 570 inspector must recertify?
• What is the minimum time an examiner should be in a darkened area prior to using a black light when performing MT & PT exams?
• Flanges made from plate materials are suitable only for which flange type?
• Which option represents the maximum interval for welder qualifications without using a welding process?
• Which code is the design reference for fabrication of piping relief devices?
• What is the maximum thickness inspection interval for an injection point?
• For carbon steel piping, which operating temperature range is most susceptible to CUI due to moisture condensation?
• What is the maximum external inspection interval for Class 3 piping?
• Heat tracing could cause cracking in carbon steel piping in which service?
• What is the interval for thickness measurements on a Class 1 piping system?
• When calibrating a UT instrument, that has a delay line with single element unit, use:
• What is the minimum light intensity required when performing VT, MT, or PT exams?
• PMI stands for:
• If a relief device is removed for repair, which area should receive internal inspection?
• The corrosiveness of soils can be determined by measuring which soil property?
• Which electrode type is used in SMAW for low hydrogen applications?
• What standards must be followed when making repairs or alterations to piping systems covered by API 570?
• Which statement correctly defines the maximum thickness inspection interval for Class 2 & 3 piping?
• Which statement about API 578 material verification program is true?
• What is the minimum light intensity required during a direct visual examination of a pipe weld?
• What is the stated advantage of GTAW?
• During inspection for soil-to-air corrosion, what is the recommended digging depth range?
• The radiographic testing (RT) procedure used for a pipe repair must conform to the requirements of which ASME section?
• Which ASME section covers welder qualification?
• Who has the authority to require a pressure test?
• What type of weld is used for flush insert patches in corroded areas?
• Which flux type is specified for low hydrogen use with SAW?
• Which standard defines qualifications for nondestructive examination personnel?
• Prior to authorization for alteration work, the inspector must consult with which party?
• Minimum downstream limit of an injection point circuit is defined as which?
• What is the maximum flange size covered by B16.5?
• A propane piping system should be classified as?
• Flange leaks in certain fluids can cause which of the following issues?
• Which welding process cannot be qualified by radiography?
• Which welding process cannot be qualified by radiography?
• ASME Sec. VIII had few limitations concerning brittle fracture prior to which year?
• What is the minimum viewing angle requirement for visual inspection?
• What considerations do fillet welded patches require?
• The removal of surface material by the action of numerous individual impacts of solid or liquid particles is a definition of:
• Which API code is used for RBI (Risk Based Inspection)?
• A 4" thick 5 chrome vessel operating at 1200 psig and 900°F is least likely to fail from Brittle Fracture during which condition?
• API 570 references which paragraph for the long-term corrosion rate calculation?
• Which stainless steel series is not Ferritic?
• What is the maximum thickness inspection interval for Class 2 & 3 piping?
• Which option represents the preferred inspection method for injection points?
• Which factors are specified as considerations for fillet welded patches?
• Graphitization of carbon steels begins to occur when metal temperatures exceed:
• Which code addresses Cathodic Protection?
• Which lead letter is used during radiography to check for backscatter?
• In soil-to-air corrosion inspection, the digging depth range falls within which of the following?
• Which material group is associated with the ability to substitute preheat for PWHT?
• Which stainless steel series is Martensitic?
• For preheat and PWHT, the heated zone must extend beyond the edge of the weld by at least:
• Which of the following is the maximum external inspection interval for Class 1 & 2 piping?
• When is it necessary to inspect for corrosion beneath the surface before resealing the joint?
• In a hot tapping system, the high point area may corrode. Why is that?
• Which of the following is an Austenitic stainless steel series?
• Which lead letter is used during radiography to indicate a film-side IQI?
• API 570's guidance on vibration control requires guides to be checked to ensure they do not do what?
• Which code governs weld procedure qualification for piping?
• Why are thickness measurements suggested at pipe fittings?
• In order to determine the cause and provide corrective action, welding repairs of cracks that occurred in-service should not be attempted without consultation with:
• Which brittle fracture morphology is observed on many brittle fractures?
• Which nondestructive method is most effective for detecting loose or broken anchor bolts at pipe supports?
• For a high-risk piping system with material mixups, what percentage examination is required?
• If insulation plugs are removed to permit thickness measurements, what issue should be watched for?
• Where should wall thickness on deadlegs be monitored by the inspector?
• Socket-welded piping is generally not used for nominal pipe sizes above which size?
• Internal pressure in a pipe generates the highest stresses along which weld orientation?
• What surface finish is generally required for raised face flanges?
• For MAWP calculations of known materials, which information is not required by the applicable code?
• A pipe has a thickness designation of '40S'. What does the 'S' mean?
• Buried piping without adequate cathodic protection should be included in external inspections. What area must be inspected?
• Guides added to control vibration must be checked to insure they do not what?
• What should be done when unexpected movement of a piping system is observed?
• According to B31.3, what percentage of radiographic testing is conducted on circumferential welds in normal service?
• Direct visual examination of a pipe weld requires a minimum light intensity of how many footcandles?
• Which API code covers Fitness for Service?
• What does the 'H' denote in the designation 316H stainless steel?
• Which material is typically susceptible to chloride SCC under CUI conditions?
• With a fillet welded patch installed, the maximum SMYS allowed for the pipe is
• What class of stainless steel is the 300 series best described as?
• Which external piping interval is commonly used for Class 3 piping?
• Which set contains the two main types of environmental cracking?
• Other areas of moisture ingress may be caused by inspection actions on piping systems. Where would these areas be located?
• What is the most common material nonconformance with serious consequences?
• What is the maximum interval for a visual examiner's eye check?
• On-stream welding requires approval from which stakeholder?
• Which code is used for performing an internal inspection on piping?
• Which statement correctly reflects acceptance of welder qualification records from a previous employer under B31.3?
• When shall temporary leak sealing devices be removed and pipe repaired?
• Which welding process provides the best control of the weld pool?
• What is the limit for measuring soil-to-air distance away from the interface?
• ASME/ANSI B16.5 requires flanges to be:
• Which piping is most involved in material mixups?
• Whose approval for on-stream welding is required?
• What is the maximum external inspection interval for Class 1 & 2 Piping?
• If you are selecting the standard for repairs to API 570 covered piping, which code may be applied?
• In pipe fabrication, unknown materials should be used for which purpose?
• Excessive repairs to pump bearings may result from which phenomenon?
• Radiography cannot be used to qualify a welder in which process/mode?
• Resistance to Brittle Fracture is called what?
• When performing a visual exam, the minimum angle of eye to part?
• Which code covers Valve Inspection and testing?
• With regard to alteration work, who must the inspector consult with prior to giving authorization?
• Which microstructural feature increases brittleness?
• What is the minimum holding time for all pressure tests performed on piping?
• A PQR prepared with an S-number is applicable to which material designations?
• Which option describes the maximum external inspection interval for Class 3 piping?
• Which material is most susceptible to brittle fracture?
• Which code sets RBI guidelines?
• Most brittle fractures appear as which fracture morphology?
• What does the suffix 'S' in the designation '40S' indicate?
• What do you call a groove in the parent metal at the toe of a weld?
• In 304L stainless steel, what does the L signify?
• Thickness measurements at pipe fittings are emphasized to detect which condition caused by directional changes?
• For radiographic testing with hole-type IQI, which hole size must be visible?
• During pipe fabrication who has overall responsibility for compliance with the code?
• How does soil corrosion rate change with temperature?
• For deadlegs, where should inspector monitor wall thickness?
• Which temperature range is commonly associated with susceptibility to CUI in austenitic stainless steel piping under chloride exposure?
• Maximum SMYS for pipe if a fillet welded patch is installed?
• What does PMI stand for in material identification practices?
• The statement 'The minimum required pipe wall thickness is based solely on pressure' is:
• When qualifying a weld procedure, essential variables must be recorded on which documents?
• Preheat should never be substituted for PWHT if the PWHT was used to prevent environmental cracking.
• What is the maximum stress allowed during a pressure test?
• When recalculating MAWP for continued use, what thickness is used?
• The 3G welding test position corresponds to which weld orientation?
• What is the limit of soil-to-air distance from the interface?
• Carbon steel materials are most likely to be incorrectly substituted in:
• Which two carbon steel pipe materials are commonly used?
• When MAWP is recalculated for piping systems of unknown materials, what information is used?
• For welded pipe, the normal under-tolerance thickness is which value?
• The minimum downstream limit of an injection point circuit is the lesser of which options?
• Change of an identical item owing to corrosion + MAWP increased for the whole system is called?
• For high-risk piping systems with likely material mixups, what percentage of material examination is required?
• Which combination increases the likelihood of brittle fracture?
• Which code governs material identification and material properties verification?
• What are the two main types of environmental cracking?
• An inservice process pipe should be classified as Class 1 when the % of H2S exceeds:
• Heat tracing could cause cracking in carbon steel piping in which service?
• According to B31.3, a welder's qualification records from a previous employer can:
• What operating temperature range would be considered most susceptible to chloride stress corrosion cracking in austenitic stainless steel piping?
• Materials where preheat can be substituted for PWHT?
• What is the maximum allowed thickness on a WPS based on the plate thickness (T) of a PQR coupon?
• Which welding process uses a non-consumable electrode?
• Which test is used to determine a material's toughness?
• A welder becomes unqualified when he has not welded in:
• If preheat substitutes for the required PWHT, what is the minimum preheat temperature?
• How is the long-term corrosion rate calculated?
• Who must approve all proposed methods of design, execution, materials, welding procedures, examination, and testing?
• If PWHT is used to prevent environmental cracking, what does it imply about using preheat as a substitute?
• Which statement describes the interval for thickness measurements on Class 1 piping?
• When a relief device or valve is removed for repair, the inspector should do which of the following?
• What is the suggested interval for above-grade visual surveillance of buried pipe?
• In severe cyclic service, what percentage of fabrication should be visually examined according to B31.3?
• Generally socket-welded pipe is not used for nominal pipe sizes above:
• Which option correctly lists the intervals for welder qualifications (months), above-grade visual surveillance (months), and visual examiner eye check (months), respectively?
• During welding, nonessential variables are:
• When qualifying a weld procedure, essential variables must be recorded on which documents?
• What are the restrictions to repairing longitudinal cracks with the full encirclement or box enclosure method?
• For soil-to-air inspections on uncoated lines, it is recommended to excavate the soil:
• What is the minimum length of buried pipe that must be exposed when excavating for inspection?
• A PQR that uses an S-number qualifies for which materials?
• Before any repair or alteration work begins, who must authorize it?
• In API 570, how is the short-term corrosion rate calculated?
• Which pair of gamma ray sources are used for radiography?
• Preferred inspection method for injection points?
• The term for changing an identical item due to corrosion with increased MAWP for the whole system is called?
• In facilities with very harsh service conditions, which pipe material is commonly specified for primary lines?
• What is the recommended interval for a close interval survey of buried pipe with poor CP?
• When should temporary pipe repairs be replaced?
• What is the maximum interval for a welder to maintain qualifications for a welding process without using that process?
• Which dimension stays the same regardless of the wall thickness?
• Which stainless steel series is Ferritic?
• Which standard is used for flange class marking?
• PMI in piping contexts refers to:
• Carbon steel piping that operates intermittently above what temperature should be inspected for CUI?
• The API 578 material verification program covers which components?
• Which stainless steel series is Austenitic?
• Which of the following is an Austenitic stainless steel series? (rephrased)
• When performing preheat prior to welding or PWHT, the preheat zone and/or PWHT must extend how far beyond the edge of the weld?
• For flush insert patches, which weld configuration is used?
• What indicates internal CO2 corrosion?
• Which material has the highest resistance to sulfidation?
• Which option expresses the injection point thickness inspection interval described as less than three years or half-life?
• Which code would you reference to qualify welders under piping systems?
• Which factor is identified as a concern for patch welds in corrosion-prone areas?
• Which statement correctly describes 304L in relation to carbon content?
• If there is no conformance to ASME IX, filler metal must be approved by whom?
• Which process describes moisture condensation and re-evaporation that drives CUI under insulation?
• Typical external corrosion rate for dry rural environment?
• When welding piping components with different thicknesses, what feature should be used on the thicker part to ensure proper fit-up?
• What are the two primary gamma ray radiation sources used in radiography?
• Which statement about seal welding pipe threads is correct?
• What type of records is the owner/user required to maintain according to API 570?
• Flange bolts are unacceptable if the bolt threads do not extend:
• If corrosion rate for new pipe is unknown and no other data is available, what is the maximum time before obtaining thickness readings?
• Which ASME section is designated for the design code used for fabrication of piping relief devices?
• The FFS evaluation for fire damage should be performed in accordance with which API document and section?
• What is the maximum inspection interval for clean/non fouling service PRD's?
• Liquid thermal relief valves should be set at a pressure not higher than what percent?
• Which ASME Section governs radiographic testing procedures for pipe repairs?
• Which of the following is a mode of GMAW transfer?
• The Charpy impact test primarily measures which property?
• What should be done to determine the possibility of corrosion under insulation (CUI) existing?
• Which diagnostic method is used to detect loose or broken anchor bolts at pipe supports?
• Nonessential variables during welding are typically documented in: