API 653 EXAM REVISION QUESTIONS
AND THEIR REVIEWED ANSWERS
Fitness for Service (FFS)
Risked Based InspectionAPI 579
Risked Based Inspection
API 580
Low Pressure Storage Tanks
API 620
Cathodic Protection
API 651
Tank Bottom Linings
API 652
Welding on In-Service Equipment containing
Flammables
API 2201
NDE Procedure Guidelines
ASME Sect V
Acceptance Standards for RT, MT & PT's of Welds
ASME Sect 8, Div 1
Alternative code to evaluate pits and LTA's
ASME Sect 8, Div 2
Welder Qualification Code
ASME Sect IX
Weld Procedure Qualification Code
ASME Sect IX
Impact Testing Method and Equipment Requirements
ASTM A370
,Requirement for new welding electrodes
AWS
NDE Personnel Qualification (RT & UT Flaw Detection)
ASNT SNTTC-1A
API 650 Annex for Frangible Roofs
Annex F
API 650 Annex for Hot Tanks
Annex M
API 653 Scope (Alteration, Inspect, Repair,
Reconstruction)
AIRR
API 653 AI's Employer (Jurisdiction, User, Insurance
company, Contractor)
JUIC
API 653 Repair Organization Owner, Contractor)
(authorized by Jurisdiction,
JOC
Linings - Typically anchor profile of steel surface
required for the installation of a tank bottom lining
1.5 - 4.0 mils
Welds - Maximum undercut of a vertical weld & nozzle
weld
1/64"
Welds - Maximum undercut of a horizontal weld
1/32"
3/32"
Welds - Maximum diameter of a surface porosity cluster
Weld Qualification - Max allowed discontinuity in a
Bend Test
1/8"
Nameplates - Minimum size of nameplate letters
, 5/32"
Bottoms - Minimum external projection of bottom
plate on an existing tank (from toe of shell-to-bottom
FW)
3/8"
Reconstruction - Max amount of peaking allowed in
vert welds
1/2"
Shell Calcs - When calculating t min for shell LTA,
minimum distance away from a weld where "E" is
always 1.0
> 1" or 2t
Shell Patch - Minimum overlap of shell lap-patch used
to cover a hole (edge of hole to edge of patch)
1"
NDE - When performing a PT examination, minimum
distance to clean beyond the area to be examined
1"
NDE - When performing a MT examination, minimum
distance to clean beyond the area to be examined
1"
Reconstruction - Maximum amount of banding
allowed in a horizontal welds
1"
Bottoms - Minimum overlap required for single-welded
lap joints
1"
Bottoms - Minimum external projection of bottom
plate on a new tank
2"
AND THEIR REVIEWED ANSWERS
Fitness for Service (FFS)
Risked Based InspectionAPI 579
Risked Based Inspection
API 580
Low Pressure Storage Tanks
API 620
Cathodic Protection
API 651
Tank Bottom Linings
API 652
Welding on In-Service Equipment containing
Flammables
API 2201
NDE Procedure Guidelines
ASME Sect V
Acceptance Standards for RT, MT & PT's of Welds
ASME Sect 8, Div 1
Alternative code to evaluate pits and LTA's
ASME Sect 8, Div 2
Welder Qualification Code
ASME Sect IX
Weld Procedure Qualification Code
ASME Sect IX
Impact Testing Method and Equipment Requirements
ASTM A370
,Requirement for new welding electrodes
AWS
NDE Personnel Qualification (RT & UT Flaw Detection)
ASNT SNTTC-1A
API 650 Annex for Frangible Roofs
Annex F
API 650 Annex for Hot Tanks
Annex M
API 653 Scope (Alteration, Inspect, Repair,
Reconstruction)
AIRR
API 653 AI's Employer (Jurisdiction, User, Insurance
company, Contractor)
JUIC
API 653 Repair Organization Owner, Contractor)
(authorized by Jurisdiction,
JOC
Linings - Typically anchor profile of steel surface
required for the installation of a tank bottom lining
1.5 - 4.0 mils
Welds - Maximum undercut of a vertical weld & nozzle
weld
1/64"
Welds - Maximum undercut of a horizontal weld
1/32"
3/32"
Welds - Maximum diameter of a surface porosity cluster
Weld Qualification - Max allowed discontinuity in a
Bend Test
1/8"
Nameplates - Minimum size of nameplate letters
, 5/32"
Bottoms - Minimum external projection of bottom
plate on an existing tank (from toe of shell-to-bottom
FW)
3/8"
Reconstruction - Max amount of peaking allowed in
vert welds
1/2"
Shell Calcs - When calculating t min for shell LTA,
minimum distance away from a weld where "E" is
always 1.0
> 1" or 2t
Shell Patch - Minimum overlap of shell lap-patch used
to cover a hole (edge of hole to edge of patch)
1"
NDE - When performing a PT examination, minimum
distance to clean beyond the area to be examined
1"
NDE - When performing a MT examination, minimum
distance to clean beyond the area to be examined
1"
Reconstruction - Maximum amount of banding
allowed in a horizontal welds
1"
Bottoms - Minimum overlap required for single-welded
lap joints
1"
Bottoms - Minimum external projection of bottom
plate on a new tank
2"
