API 510 EXAMS TEST PAPER 2026/2027 QUESTIONS AND
SOLUTIONS RATED A+
✔✔For vessels fabricated with carbon and low alloy steel, general and local metal loss
can result from - ✔✔Naphtenic acid corrosion
✔✔Which readings taken within the area of examination of a CML shall be used to
calculate corrosion rates - ✔✔The thinnest or an average of several measurements
✔✔The primary purpose for preheating carbon and low alloy steel prior to welding is to -
✔✔Reduce the chance for delayed cracking
✔✔If the requirements of 510 are more stringent than the jurisdiction requirements -
✔✔The requirements of API 510 shall govern
✔✔The installation of a new nozzle that does not require reinforcement - ✔✔Shall be
approved by an engineer
✔✔API Publication 2201 on hot tapping and in service welding covers - ✔✔Safety
aspects
✔✔According to API 510 additional guidance on material verification programs can be
found - ✔✔API 578
✔✔What is the inspectors role regarding preheat temperature used in making welding
repairs - ✔✔The inspector should assure that the minimum preheat temperature is
measured and maintained
✔✔What are indications - ✔✔A response or evidence resulting from the application of
NDE
✔✔What is the minimum design metal temperature - ✔✔The lowest temperature at
which a significant load can be applied to a pressure vessel per the construction code
✔✔According to API 510 guidance on the inspection of flanged joints can be found in -
✔✔ASME PCC-1
✔✔What is general corrosion - ✔✔Corrosion that is distributed more or less uniformly
over the surface of the material
✔✔What welding process is most widely used in the repair of process equipment -
✔✔SMAW
, ✔✔What are responsibilities of operating personnel according to API 510 - ✔✔Promptly
notifying the inspector of unusual conditions
✔✔Any cutting or grinding operation on a pressure containing component - ✔✔Not
specifically considered an alteration. Is considered a repair
✔✔One of the required procedures for owner/users to develop and implement to meet
the requirements of API 510 is - ✔✔Reporting any process changes to the inspector
that could affect pressure vessel integrity
✔✔According to API 510 during CUI inspection of susceptible areas, if CUI damage is
found, the inspector - ✔✔Should inspect other susceptible areas of the vessel
✔✔For vessels that have been designed or rerated using sections 8 of the ASME code,
addition 1999 or later, the appropriate minimum pressure is - ✔✔130% of MAWP
✔✔What is an example of work where an industry qualified UT shear wave examiner
should be used - ✔✔Collecting data for fitness for service evaluations
✔✔Repeating measurements at the same CML location - ✔✔Improves accuracy for
calculated damage rate
✔✔All repairs and alterations to a vessel shall be performed by - ✔✔A repair
organization
✔✔Which of the following terms refers to breaks in nonmetallic linings or coatings -
✔✔Holidays
✔✔When must a pressure test be performed on a pressure vessel that has been in
service - ✔✔When the authorized pressure vessel inspector deems it necessary
✔✔The next inspection interval for vessels in corrosive service should be determined by
calculating the remaining life of - ✔✔The limiting component
✔✔According to the API 510 code, a pressure relief device repair organization must
have - ✔✔A quality control system
✔✔Safety valves are used in - ✔✔Air and steam service
✔✔The major factor for determining the degree of surface preparation required for an
internal visual inspection is - ✔✔The type and location of the deterioration expected
SOLUTIONS RATED A+
✔✔For vessels fabricated with carbon and low alloy steel, general and local metal loss
can result from - ✔✔Naphtenic acid corrosion
✔✔Which readings taken within the area of examination of a CML shall be used to
calculate corrosion rates - ✔✔The thinnest or an average of several measurements
✔✔The primary purpose for preheating carbon and low alloy steel prior to welding is to -
✔✔Reduce the chance for delayed cracking
✔✔If the requirements of 510 are more stringent than the jurisdiction requirements -
✔✔The requirements of API 510 shall govern
✔✔The installation of a new nozzle that does not require reinforcement - ✔✔Shall be
approved by an engineer
✔✔API Publication 2201 on hot tapping and in service welding covers - ✔✔Safety
aspects
✔✔According to API 510 additional guidance on material verification programs can be
found - ✔✔API 578
✔✔What is the inspectors role regarding preheat temperature used in making welding
repairs - ✔✔The inspector should assure that the minimum preheat temperature is
measured and maintained
✔✔What are indications - ✔✔A response or evidence resulting from the application of
NDE
✔✔What is the minimum design metal temperature - ✔✔The lowest temperature at
which a significant load can be applied to a pressure vessel per the construction code
✔✔According to API 510 guidance on the inspection of flanged joints can be found in -
✔✔ASME PCC-1
✔✔What is general corrosion - ✔✔Corrosion that is distributed more or less uniformly
over the surface of the material
✔✔What welding process is most widely used in the repair of process equipment -
✔✔SMAW
, ✔✔What are responsibilities of operating personnel according to API 510 - ✔✔Promptly
notifying the inspector of unusual conditions
✔✔Any cutting or grinding operation on a pressure containing component - ✔✔Not
specifically considered an alteration. Is considered a repair
✔✔One of the required procedures for owner/users to develop and implement to meet
the requirements of API 510 is - ✔✔Reporting any process changes to the inspector
that could affect pressure vessel integrity
✔✔According to API 510 during CUI inspection of susceptible areas, if CUI damage is
found, the inspector - ✔✔Should inspect other susceptible areas of the vessel
✔✔For vessels that have been designed or rerated using sections 8 of the ASME code,
addition 1999 or later, the appropriate minimum pressure is - ✔✔130% of MAWP
✔✔What is an example of work where an industry qualified UT shear wave examiner
should be used - ✔✔Collecting data for fitness for service evaluations
✔✔Repeating measurements at the same CML location - ✔✔Improves accuracy for
calculated damage rate
✔✔All repairs and alterations to a vessel shall be performed by - ✔✔A repair
organization
✔✔Which of the following terms refers to breaks in nonmetallic linings or coatings -
✔✔Holidays
✔✔When must a pressure test be performed on a pressure vessel that has been in
service - ✔✔When the authorized pressure vessel inspector deems it necessary
✔✔The next inspection interval for vessels in corrosive service should be determined by
calculating the remaining life of - ✔✔The limiting component
✔✔According to the API 510 code, a pressure relief device repair organization must
have - ✔✔A quality control system
✔✔Safety valves are used in - ✔✔Air and steam service
✔✔The major factor for determining the degree of surface preparation required for an
internal visual inspection is - ✔✔The type and location of the deterioration expected
