API 653 Mastery Exam | Advanced Aboveground Storage Tank Integrity,
Inspection & Maintenance Mastery Exam covering Atmospheric Storage
Tank Design Fundamentals, Structural Engineering of Shell Courses,
Bottom Plate Corrosion Assessment, Annular Plate Integrity, Weld Joint
Design & Performance, Fabrication and Erection Standards, Fitness for
Service Engineering Evaluation, Risk Based Inspection Methodology,
Corrosion Rate Analysis, Microbiologically Influenced Corrosion, Stress
Corrosion Cracking Mechanisms, Cathodic Protection System Design,
Internal & External Tank Lining Systems, Hot Work Safety Procedures, In-
Service Welding Controls, Hydrostatic Testing Requirements, Settlement
Detection & Structural Deformation Analysis, Non-Destructive Examination
Techniques (Radiography, Ultrasonic, Magnetic Particle, Penetrant Testing,
Vacuum Box Testing), Welding Procedure Qualification and Welder
Certification Standards, Material Specification & Impact Toughness
Testing, Alteration Repair & Reconstruction Decision Criteria, Critical Zone
Thickness Evaluation, Leak Detection & Release Prevention Systems,
Floating Roof Design Systems, Cone Roof Structural Behavior, Low-
Pressure Storage Tank Design Principles, Venting System Engineering
Exam Questions Verified and Provided with Complete A+ Graded Answers
Latest Updated 2026
653: 1.1.0 - Fitness for Service (FFS)
Ref. Doc. - API 579
653: 6.4.2.2.2 - Risked Based Inspection
Ref. Doc. - API 580
,653: 2.1 - Low Pressure Storage Tanks
Ref. Doc. - API 620
653: 6.3.4.1 - Cathodic Protection
Ref. Doc. - API 651
653: 4.4.3.4 - Tank Bottom Linings
Ref. Doc. - API 652
653: 9.14.2 - Welding on In-Service Equipment containing Flammables
Ref. Doc. - API 2201
650. 8.1.3.1, 8.2.1, 8.3.2.2, 8.4.1 - NDE Procedure Guidelines
Ref. Doc. - ASME Sect V
650: 8.1.5 - Acceptance Standards for RTs of Welds
Ref. Doc. - ASME Sect 8, Div 1
653: 4.3.3.6 - Alternative evaluation for pits and LT4's
Ref. Doc. - ASME Sect 8, Div 2
,653: 11.1.1 - Welder Qualification
Ref. Doc. - ASME Sect IX
653: 11.1.1 - Weld Procedure Qualification
Ref. Doc. - ASME Sect IX
650: 4.2.8.7 - Impact Testing Method and Equipment Requirements
Ref. Doc. - ASTM A370
653: 7.4 - Requirement for new welding electrodes
Ref. Doc. - AWS
650: 8.1.3.2, 8.3.2.4 - NDE Personnel Qualification (RT & UT Flaw Detection)
Ref. Doc. - ASNT SNT-TC-II
653: 4.2.4.1 - API 650 Appendix for Frangible Roofs
Ref. Doc. - Appendix F
, 653: 4.2.4.3 - API 650 Appendix for Hot Tanks
Ref. Doc. - Appendix M
653: 1.1.1 - API 653 Scope (Alteration, Inspection, Repair, Reconstruction)
Class Abbrev. - AIRR
653: 3.3 - API 653 AI's Employer (Jurisdiction, User, Insurance Company, Contractor)
Class Abbrev. - JUIC
653: 3.3 - API 653 Repair Organization (Authorized by Jurisdiction, Owner, Contractor)
Class Abbrev. - JOC
653: 3.18.G - Definitions - Length of shell-to-bottom weld that if repaired is considered a major
repair or alteration
Dimensions - > 0"
3 multiple choice options
652: 7.5 - Linings - typical anchor profile of steel surface required for the installation of a tank
bottom lining
Dimensions - 1.5 - 4.0 mils
3 multiple choice options
Inspection & Maintenance Mastery Exam covering Atmospheric Storage
Tank Design Fundamentals, Structural Engineering of Shell Courses,
Bottom Plate Corrosion Assessment, Annular Plate Integrity, Weld Joint
Design & Performance, Fabrication and Erection Standards, Fitness for
Service Engineering Evaluation, Risk Based Inspection Methodology,
Corrosion Rate Analysis, Microbiologically Influenced Corrosion, Stress
Corrosion Cracking Mechanisms, Cathodic Protection System Design,
Internal & External Tank Lining Systems, Hot Work Safety Procedures, In-
Service Welding Controls, Hydrostatic Testing Requirements, Settlement
Detection & Structural Deformation Analysis, Non-Destructive Examination
Techniques (Radiography, Ultrasonic, Magnetic Particle, Penetrant Testing,
Vacuum Box Testing), Welding Procedure Qualification and Welder
Certification Standards, Material Specification & Impact Toughness
Testing, Alteration Repair & Reconstruction Decision Criteria, Critical Zone
Thickness Evaluation, Leak Detection & Release Prevention Systems,
Floating Roof Design Systems, Cone Roof Structural Behavior, Low-
Pressure Storage Tank Design Principles, Venting System Engineering
Exam Questions Verified and Provided with Complete A+ Graded Answers
Latest Updated 2026
653: 1.1.0 - Fitness for Service (FFS)
Ref. Doc. - API 579
653: 6.4.2.2.2 - Risked Based Inspection
Ref. Doc. - API 580
,653: 2.1 - Low Pressure Storage Tanks
Ref. Doc. - API 620
653: 6.3.4.1 - Cathodic Protection
Ref. Doc. - API 651
653: 4.4.3.4 - Tank Bottom Linings
Ref. Doc. - API 652
653: 9.14.2 - Welding on In-Service Equipment containing Flammables
Ref. Doc. - API 2201
650. 8.1.3.1, 8.2.1, 8.3.2.2, 8.4.1 - NDE Procedure Guidelines
Ref. Doc. - ASME Sect V
650: 8.1.5 - Acceptance Standards for RTs of Welds
Ref. Doc. - ASME Sect 8, Div 1
653: 4.3.3.6 - Alternative evaluation for pits and LT4's
Ref. Doc. - ASME Sect 8, Div 2
,653: 11.1.1 - Welder Qualification
Ref. Doc. - ASME Sect IX
653: 11.1.1 - Weld Procedure Qualification
Ref. Doc. - ASME Sect IX
650: 4.2.8.7 - Impact Testing Method and Equipment Requirements
Ref. Doc. - ASTM A370
653: 7.4 - Requirement for new welding electrodes
Ref. Doc. - AWS
650: 8.1.3.2, 8.3.2.4 - NDE Personnel Qualification (RT & UT Flaw Detection)
Ref. Doc. - ASNT SNT-TC-II
653: 4.2.4.1 - API 650 Appendix for Frangible Roofs
Ref. Doc. - Appendix F
, 653: 4.2.4.3 - API 650 Appendix for Hot Tanks
Ref. Doc. - Appendix M
653: 1.1.1 - API 653 Scope (Alteration, Inspection, Repair, Reconstruction)
Class Abbrev. - AIRR
653: 3.3 - API 653 AI's Employer (Jurisdiction, User, Insurance Company, Contractor)
Class Abbrev. - JUIC
653: 3.3 - API 653 Repair Organization (Authorized by Jurisdiction, Owner, Contractor)
Class Abbrev. - JOC
653: 3.18.G - Definitions - Length of shell-to-bottom weld that if repaired is considered a major
repair or alteration
Dimensions - > 0"
3 multiple choice options
652: 7.5 - Linings - typical anchor profile of steel surface required for the installation of a tank
bottom lining
Dimensions - 1.5 - 4.0 mils
3 multiple choice options
