API 510 CORE EXAM SET 2026/2027 QUESTIONS AND
SOLUTIONS RATED A+
✔✔What metals might be subject to brittle fracture even at room temperature - ✔✔At
ambient temperature, carbon, low
✔✔ - ✔✔
✔✔ NDE examinations must be scheduled at intervals that consider the - ✔✔Probability
of the NDE method to identify the damage
✔✔What is the transition temperature of a metal? - ✔✔The temp at which the material
fracture code changes from ductile to brittle
✔✔A primary goal of API 510 internal inspection is to - ✔✔Find damage that cannot be
found by monitoring external CMLs
✔✔When conducting a hydrostatic pressure test special attention should be given when
testing low alloy steels especially 2 1/4 cr because - ✔✔They may be prone to temper
embrittlement
✔✔What is the maximum chloride concentration allowed for water or steam when hydro
testing 300 series - ✔✔50 ppm
✔✔For austenitic stainless steel the susceptible temperature range of CUI is - ✔✔140
degrees and 400 degrees
✔✔How many systems and procedures must be documented and implemented per API
510 in a owner user inspection repair management system for pressure vessels and
pressure relief devices - ✔✔19
✔✔The consequence of a release is dependent on - ✔✔The type and amount of
process fluid contained in the equipment
✔✔The surface at a weld with a joint factor the 1.0 is corroded. The calculation to
determine if the thickness at the corroded are governs the allowable working pressure
should be - ✔✔The thickness of the surface of the weld includes 1" or twice the
minimum thickness on either side of the weld whichever is greater
✔✔A methodology whereby flaws and conditions contained within an equipment item
are assessed in order to determine the integrity of the equipment for continued service
is referred to as - ✔✔Fitness for service evaluation
, ✔✔What is a pressure vessel engineer responsible for - ✔✔Activities involving design
engineering review analysis or evaluation of vessels
✔✔When can pressure tests of vessel components be performed in lieu of entire vessel
testing - ✔✔After consultations with an engineer
✔✔An inspection plan shall be developed for - ✔✔All pressure vessels and pressure
relieving devices
✔✔Which of the following techniques is specifically cited by API 577 as having special
limitations due to concerns for incomplete fusion - ✔✔GMAW -Spray transfer
✔✔According to API 510 on stream inspections should be conducted by whom - ✔✔An
inspector or examiner
✔✔All tools equipment and personal protective equipment used during vessel work -
✔✔Should be check prior to work
✔✔Welding inspection occurs - ✔✔Prior to, during, and after welding
✔✔During welding operations the inspector should confirm that - ✔✔The welding
parameters are supported by the WPS and WPQ
✔✔NDE is defined as those inspection methods which allow materials to be examined -
✔✔Without damaging the component
✔✔According to API 510 when do inspectors need to inspect non pressure internals of
pressure vessels - ✔✔When requested by other operations personnel
✔✔An inspector plan shall be established for - ✔✔All pressure vessels and pressure
relieving devices within the scope of API 510
✔✔When the term engineer is used in the API 510 code it refers to - ✔✔A pressure
vessel engineer
✔✔Derating below original design conditions - ✔✔Is a permissible way to provide for
additional allowance
✔✔Fillet welded patch plates shall have rounded corners with a minimum radius of -
✔✔1"
✔✔The test pressure applied after a repair is completed on a vessel built to 2001 ed of
the ASME code sec 8 shall be - ✔✔1.4 MAWP X
SOLUTIONS RATED A+
✔✔What metals might be subject to brittle fracture even at room temperature - ✔✔At
ambient temperature, carbon, low
✔✔ - ✔✔
✔✔ NDE examinations must be scheduled at intervals that consider the - ✔✔Probability
of the NDE method to identify the damage
✔✔What is the transition temperature of a metal? - ✔✔The temp at which the material
fracture code changes from ductile to brittle
✔✔A primary goal of API 510 internal inspection is to - ✔✔Find damage that cannot be
found by monitoring external CMLs
✔✔When conducting a hydrostatic pressure test special attention should be given when
testing low alloy steels especially 2 1/4 cr because - ✔✔They may be prone to temper
embrittlement
✔✔What is the maximum chloride concentration allowed for water or steam when hydro
testing 300 series - ✔✔50 ppm
✔✔For austenitic stainless steel the susceptible temperature range of CUI is - ✔✔140
degrees and 400 degrees
✔✔How many systems and procedures must be documented and implemented per API
510 in a owner user inspection repair management system for pressure vessels and
pressure relief devices - ✔✔19
✔✔The consequence of a release is dependent on - ✔✔The type and amount of
process fluid contained in the equipment
✔✔The surface at a weld with a joint factor the 1.0 is corroded. The calculation to
determine if the thickness at the corroded are governs the allowable working pressure
should be - ✔✔The thickness of the surface of the weld includes 1" or twice the
minimum thickness on either side of the weld whichever is greater
✔✔A methodology whereby flaws and conditions contained within an equipment item
are assessed in order to determine the integrity of the equipment for continued service
is referred to as - ✔✔Fitness for service evaluation
, ✔✔What is a pressure vessel engineer responsible for - ✔✔Activities involving design
engineering review analysis or evaluation of vessels
✔✔When can pressure tests of vessel components be performed in lieu of entire vessel
testing - ✔✔After consultations with an engineer
✔✔An inspection plan shall be developed for - ✔✔All pressure vessels and pressure
relieving devices
✔✔Which of the following techniques is specifically cited by API 577 as having special
limitations due to concerns for incomplete fusion - ✔✔GMAW -Spray transfer
✔✔According to API 510 on stream inspections should be conducted by whom - ✔✔An
inspector or examiner
✔✔All tools equipment and personal protective equipment used during vessel work -
✔✔Should be check prior to work
✔✔Welding inspection occurs - ✔✔Prior to, during, and after welding
✔✔During welding operations the inspector should confirm that - ✔✔The welding
parameters are supported by the WPS and WPQ
✔✔NDE is defined as those inspection methods which allow materials to be examined -
✔✔Without damaging the component
✔✔According to API 510 when do inspectors need to inspect non pressure internals of
pressure vessels - ✔✔When requested by other operations personnel
✔✔An inspector plan shall be established for - ✔✔All pressure vessels and pressure
relieving devices within the scope of API 510
✔✔When the term engineer is used in the API 510 code it refers to - ✔✔A pressure
vessel engineer
✔✔Derating below original design conditions - ✔✔Is a permissible way to provide for
additional allowance
✔✔Fillet welded patch plates shall have rounded corners with a minimum radius of -
✔✔1"
✔✔The test pressure applied after a repair is completed on a vessel built to 2001 ed of
the ASME code sec 8 shall be - ✔✔1.4 MAWP X
