Questions and complete solutions
An in-service vessel is inspected. If there is a conflict between API 510 and the legal jurisdiction, which
should be followed?
API 510
The Legal Jurisdiction
The one with the most stringent requirements
Either set of the requirements based on Engineer and AI approval - ✔✔C
Which of the following vessels, that may be exempted from API 510, should be considered for
inclusion in the Owner/User's API 510 program?
140' Low Pressure Storage Tank
Oil Mist Accumulator
Small Filter
Vacuum Flasher - ✔✔D
Which code is used for Fitness for Service evaluations?
API 579
API 660
API 2201
ASME B&PV Section V - ✔✔A
,Which code is used for RBI assessments?
API 573
API 579
API 580
API 2201 - ✔✔C
During an in-service internal inspection, a crack is discovered on a longitudinal weld. This crack can
be evaluated to which industry document?
API 510
API 579
ASME B&PV Section VI
Cracks are never allowed in an in-service vessel. - ✔✔B
Which document provides requirements for Hot Tapping?
API 578
API 579
API 651
API 2201
API 2217 - ✔✔D
Which document provides information on Damage Mechanisms in the Refining Industry?
API 570
API 571.
API 577
ASME Section V
ASME Section XI - ✔✔B
Which document provides information on Corrosion Under Insulation and
Fireproofing? a) API 571
, API 581
API 583.
ASME B16.5
NACE SP1488 - ✔✔C
Which document provides information on repair of Pressure Equipment & Piping?
API 581
API 584
API 598
ASME PCC-2 - ✔✔D
Which document provides information on Integrity Operating Windows?
API 584
API 585
API 2201
ASME PCC-1
ASME Section III - ✔✔A
Which document provides information on Material Identification of Alloy Materials?
API 578
API 584
API 598
ASME PCC-1
NACE SP0170 - ✔✔A
Which document provides information on protecting Austenitic Alloys from Polythionic Acid Stress
Corrosion Cracking?
API 583
API 584
, NACE SPO170
WRC Bulletin 412 - ✔✔C
When performing controlled deposition welding, supporting technical information can be found in:
API 1104
API 2201
ASME Section VIII
WRC Bulletin 412 - ✔✔D
Which of the following is considered a vessel alteration?
Addition of non-reinforced nozzle
Weld build-up in a locally corroded area
Replacement of a hemi-spherical head with a tori - spherical head
Addition of fillet weld patch - ✔✔C
An alteration on a vessel is defined as:
A physical change with design implications
The work necessary to restore a vessel to new condition
The work necessary to restore a vessel to a suitable safe condition
Any cutting or welding performed on the vessel's pressure boundary - ✔✔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 inside diameter of 72". The largest existing nozzle on the vessel is 18 NPS. Which
of the following is true?
This work will be considered an alteration
The root pass on the welds must be checked with either MT or PT
The vessel must be hydrotested after the nozzles are completed
This must be authorized by the Inspector and approved by the Engineer. - ✔✔D