API 510 EXAM QUESTIONS AND
CORRECT ANSWERS ALREADY
PASSED
The next inspection interval for vessels in corrosive service should be determined by
calculating the remaining life of - Answer-The limiting component
According to the API 510 code, a pressure relief device repair organization must have -
Answer-A quality control system
Safety valves are used in - Answer-Air and steam service
The major factor for determining the degree of surface preparation required for an
internal visual inspection is - Answer-The type and location of the deterioration expected
Which of the following heads will normally require the greatest wall thickness for the
same design conditions - Answer-Flat head
Acceptance criteria for welded repairs should include NDE techniques that are in
accordance with - Answer-ASME
A pressure test for pressure vessels is applied at the discretion of the API authorized
inspector, but is normally required after a - Answer-Alteration
Lap joint flanges should be checked for - Answer-Corrosion between the flange and
pipe
Inspection records should be maintained - Answer-For the service life of the vessel
A pilot operated safety relief valve is best suited when the - Answer-Operating pressure
is close to the set pressure
Which of the following nondestructive examination methods is most likely to detect a
subsurface flaw in a pressure vessel - Answer-Ultrasonic
The potential for galvanic corrosion will increase when - Answer-Combining metals from
opposite ends of the galvanic series
, A low energy value on a test for notch toughness indicates that a metal is - Answer-
Brittle
The ability of a metal to absorb energy and deform plastically before fracturing is known
as - Answer-Toughness
NDE examinations must be scheduled at intervals that consider the - Answer-Probability
of the NDE method to identify the damage
What is the transition temperature of a metal? - Answer-The temp at which the material
fracture code changes from ductile to brittle
A primary goal of API 510 internal inspection is to - Answer-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 - Answer-They may be prone to
temper embrittlement
What is the maximum chloride concentration allowed for water or steam when hydro
testing 300 series - Answer-50 ppm
For austenitic stainless steel the susceptible temperature range of CUI is - Answer-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 - Answer-19
The consequence of a release is dependent on - Answer-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 - Answer-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 - Answer-Fitness for service evaluation
What is a pressure vessel engineer responsible for - Answer-Activities involving design
engineering review analysis or evaluation of vessels
CORRECT ANSWERS ALREADY
PASSED
The next inspection interval for vessels in corrosive service should be determined by
calculating the remaining life of - Answer-The limiting component
According to the API 510 code, a pressure relief device repair organization must have -
Answer-A quality control system
Safety valves are used in - Answer-Air and steam service
The major factor for determining the degree of surface preparation required for an
internal visual inspection is - Answer-The type and location of the deterioration expected
Which of the following heads will normally require the greatest wall thickness for the
same design conditions - Answer-Flat head
Acceptance criteria for welded repairs should include NDE techniques that are in
accordance with - Answer-ASME
A pressure test for pressure vessels is applied at the discretion of the API authorized
inspector, but is normally required after a - Answer-Alteration
Lap joint flanges should be checked for - Answer-Corrosion between the flange and
pipe
Inspection records should be maintained - Answer-For the service life of the vessel
A pilot operated safety relief valve is best suited when the - Answer-Operating pressure
is close to the set pressure
Which of the following nondestructive examination methods is most likely to detect a
subsurface flaw in a pressure vessel - Answer-Ultrasonic
The potential for galvanic corrosion will increase when - Answer-Combining metals from
opposite ends of the galvanic series
, A low energy value on a test for notch toughness indicates that a metal is - Answer-
Brittle
The ability of a metal to absorb energy and deform plastically before fracturing is known
as - Answer-Toughness
NDE examinations must be scheduled at intervals that consider the - Answer-Probability
of the NDE method to identify the damage
What is the transition temperature of a metal? - Answer-The temp at which the material
fracture code changes from ductile to brittle
A primary goal of API 510 internal inspection is to - Answer-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 - Answer-They may be prone to
temper embrittlement
What is the maximum chloride concentration allowed for water or steam when hydro
testing 300 series - Answer-50 ppm
For austenitic stainless steel the susceptible temperature range of CUI is - Answer-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 - Answer-19
The consequence of a release is dependent on - Answer-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 - Answer-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 - Answer-Fitness for service evaluation
What is a pressure vessel engineer responsible for - Answer-Activities involving design
engineering review analysis or evaluation of vessels
