API 510 Section 3 Questions and Answers 100% Pass

API 510 Section 3 Questions and Answers 100% Pass Which of the following is considered a vessel alteration? a) addition of non-reinforced nozzle b) weld build-up on a locally corroded area c) replacement of a hemi-spherical head with a tori-spherical head d) addition of fillet weld patch - Answer- c) An alteration on a vessel is defined as: a) any physical change with design implications b) the work necessary to return a vessel to new condition c) the work necessary to return a vessel to suitable safe condition d) any cutting or welding performed on the vessel's pressure boundary - Answer- a) An 8 NPS nozzle is going to be added to a 2-to-1 ellipsoidal vessel head. The vessel is rated for 350 psig at 500 F. The vessel has an inside diameter of 72". The largest existing nozzle on the vessel is 18 NPS. Which of the following is true? a) this work will be considered an alteration b) the root pass on the welds must be checked with either MT or PT c) the vessel must be hydrotested after the nozzles are completed d) the work must be authorized by the API 510 inspector - Answer- d) A 14 NPS nozzle is going to be added to a vessel shell. The vessel is rated for 100 psig at 650 F and has an existing 10 NPS nozzle. Which of the following is true? a) the work is considered an alteration b) the work is considered a repair c) the shell-to-nozzle weld must be radiographed d) this work must be authorized only by the API 510 inspector - Answer- a) Which of the following inspection organizations is not considered an acceptable API 510 Authorized Inspection Agency? a) holder of an appropriate ASME Code Symbol b) insurance company that writes pressure vessel insurance