API 510 Closed Book Practice Exam Questions and
Answers 100% Pass
API 510 says that widely scattered pitting can be ignored provided that the:
remaining thickness is not less than 1/2 the minimum required thickness.
Rupture disks are commonly used
to protect a pressure relief valve from corrosive products.
When repairs and alterations are being conducted, which individual or organization is responsible
Repair Organization
Which code provides requirements for Hot Tapping?
API 2201
Catalytic reformer vessels may have creep damage if the operating temperature is above:
900°F
The maximum inspection interval for a pressure relief device in normal service is based on:
acceptable performance of the device with a maximum interval of 5 year.
A carbon steel vessel in caustic service has a temperature excursion up to 425°F. The vessel wall is
1/2" thick. No PWHT has been performed. What type of deterioration could be expected?
Stress corrosion cracking
During a vessel repair or alteration, when can controlled deposition welding be used as an alternative
for post weld heat treating?
For P1, P3, & P4 materials
All RBI assessments must be:
thoroughly documented.
Once vessel repair work is complete, who should approve the finished work?
Authorized inspector
Which of the following activities is not included in the scope of API 510?
Operating a vessel
Which type of corrosion is most easily missed by a visual examination?
Uniform corrosion
The maximum allowable working pressure of a vessel is the:
maximum pressure permitted at the top of the vessel.
, The use of a fillet weld patch on a vessel's pressure boundary requires approval from the:
Authorized inspector and the pressure equipment engineer
During alterations, fabrication approvals (hold points) shall be designated by:
authorized inspector
Per API 510, a PRV repair organization must:
Have a fully documented quality assurance system and training program
During vessel repairs or alterations, welding records shall be:
Available to the authorized inspector
Repairs Of vessel cracks at a serious stress concentration requires approval by:
pressure vessel engineer
The seating surfaces on a relief device must have a flatness of:
3 light beads/bands
An "F" on the radiograph indicates:
The IQI is placed on film side
An inspector is evaluating a corroded area on the vessel per API 510. The area is marked off in a grid
with five longitudinal lines. Multiple thickness readings are taken on each longitudinal line. When
performing remaining life calculations for this corroded area, the current thickness reading to use in
the calculation is the:
Average thickness of the longitudinal line with the lowest average
API 510 takes effect:
Once the vessel is placed in service
Erosion or corrosion in an exchanger shell that is adjacent to the bundle baffles can be most easily
found during an internal inspection with:
Flashlight beam directed parallel to the shell's internal surface
During a vessel repair, if a preheat is substituted for a post-weld heat treatment, who is required to
review this substitution?
Pressure vessel engineer
Which of the following is NOT an acceptable method for repairing a locally thinned area that is below
acceptable thickness?
Install a thick-film coating to arrest the corrosion
When qualifying a weld procedure using the SMAW process, which variable is considered an essential
variable?
Filler rod "F-number"
Answers 100% Pass
API 510 says that widely scattered pitting can be ignored provided that the:
remaining thickness is not less than 1/2 the minimum required thickness.
Rupture disks are commonly used
to protect a pressure relief valve from corrosive products.
When repairs and alterations are being conducted, which individual or organization is responsible
Repair Organization
Which code provides requirements for Hot Tapping?
API 2201
Catalytic reformer vessels may have creep damage if the operating temperature is above:
900°F
The maximum inspection interval for a pressure relief device in normal service is based on:
acceptable performance of the device with a maximum interval of 5 year.
A carbon steel vessel in caustic service has a temperature excursion up to 425°F. The vessel wall is
1/2" thick. No PWHT has been performed. What type of deterioration could be expected?
Stress corrosion cracking
During a vessel repair or alteration, when can controlled deposition welding be used as an alternative
for post weld heat treating?
For P1, P3, & P4 materials
All RBI assessments must be:
thoroughly documented.
Once vessel repair work is complete, who should approve the finished work?
Authorized inspector
Which of the following activities is not included in the scope of API 510?
Operating a vessel
Which type of corrosion is most easily missed by a visual examination?
Uniform corrosion
The maximum allowable working pressure of a vessel is the:
maximum pressure permitted at the top of the vessel.
, The use of a fillet weld patch on a vessel's pressure boundary requires approval from the:
Authorized inspector and the pressure equipment engineer
During alterations, fabrication approvals (hold points) shall be designated by:
authorized inspector
Per API 510, a PRV repair organization must:
Have a fully documented quality assurance system and training program
During vessel repairs or alterations, welding records shall be:
Available to the authorized inspector
Repairs Of vessel cracks at a serious stress concentration requires approval by:
pressure vessel engineer
The seating surfaces on a relief device must have a flatness of:
3 light beads/bands
An "F" on the radiograph indicates:
The IQI is placed on film side
An inspector is evaluating a corroded area on the vessel per API 510. The area is marked off in a grid
with five longitudinal lines. Multiple thickness readings are taken on each longitudinal line. When
performing remaining life calculations for this corroded area, the current thickness reading to use in
the calculation is the:
Average thickness of the longitudinal line with the lowest average
API 510 takes effect:
Once the vessel is placed in service
Erosion or corrosion in an exchanger shell that is adjacent to the bundle baffles can be most easily
found during an internal inspection with:
Flashlight beam directed parallel to the shell's internal surface
During a vessel repair, if a preheat is substituted for a post-weld heat treatment, who is required to
review this substitution?
Pressure vessel engineer
Which of the following is NOT an acceptable method for repairing a locally thinned area that is below
acceptable thickness?
Install a thick-film coating to arrest the corrosion
When qualifying a weld procedure using the SMAW process, which variable is considered an essential
variable?
Filler rod "F-number"
