API 653

This API 653 Recertification Quiz study guide for 2026/2027 provides verified questions and answers covering essential tank inspection, repair, and maintenance procedures in compliance with API standards. Topics include converting tanks to elevated temperature operations, shell-to-bottom joint fatigue evaluation, magnetic particle inspection of tank bottoms, RBI assessment and maximum inspection intervals, nozzle installation stress calculations, underside corrosion rates, and material specifica...

Definitions -Length of shell-to-bottom weld that if repaired is considered a major repair or alteration >0" --- ref. (653 : 3.18.g ) Linings -Typically anchor profile of steel surface required for the installation of a tank bottom lining 1.5 -4.0 mils --- ref. (652:7.5) Welds -Maximum undercut of a vertical weld & nozzle weld 1/64" --- ref. (650: B.5.2.b ) Welds -Maximum undercut of a horizontal weld 1/32" --- ref. (650: 8.5.2.b ) Welds -Maximum diameter of a surface porosity...

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" Welds - Maximum diameter of a surface porosity cluster 3/32" 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 ...

When the direction of rolling is not known for material to be re used in a reconstructed tank Two tension tests shall be taken at right angles to each other (653 7.3.1.2) API 650 is intended as a purchase specification for oil tanks that do not exceed 2.5 internal pressure When constructing a new tank to API 650, openings in the shell _____ shall be reinforced >NPS 2 How far back shall the horizontal seams be cut from the vertical welds in a door sheet installation that crosses vertical...

Reference Documents -Fitness for service API 579 Reference Documents -Risked Based Inspection API 580 Reference Documents -Low Pressure Storage Tanks API 620 Reference Documents -Cathodic Protection API 651 Reference Documents -Tank Bottom Linings API 652 Reference Documents -Welding on In-Service Equipment containing Flammables API 2201 Reference Documents -NDE Procedure Guidlines ASME Sect V Reference Documents -Acceptance Standards for RT's of welds ASME Sect 8, Div 1 Refer...

External Inspection Interval Lesser of 5 years or RCA/4xN (N being corrosion rate) RCA Remain Corrosion Allowance (current thickness - required thickness) Ultrasonic Inspection Interval lesser of 15 yrs or RCA/2N (if corrosion rate is not known then the max interval is 5 years) Internal Inspection Intervals Initial Internal Interval 10 years without Safeguards or 30 years with Safegaurds - Interval maximum of 20 years without Release Prevention Barrier or 30 years with RPB Table for Inte...

alteration Any work on a tank that changes its physical dimensions or configuration. as-built standard The standard (such as API standard or UL) used to costract the tank If this as-built standardis not known, the as-built standard - the standard that was in effect at the date of the installation of the component. If the date of the installation of the component is unknown (as-built standard) then the current applicable standard shall be considered to be the as-built standard. authorized...

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 Qualificat...

Who Determines to use RBI methodologies? Owner/Operator RBI Document - API Code? API 580 What are the two factors of Risk? Consequence of failure and Likelihood of Failure RBI Assessments must be thoroughly___________? Documented Who conducts an RBI Assessment? Team of Knowledgeable of RBI Principles RBI Assessments shall be repeated at least every ______ Years? 10 years Two Primary Factors of Consequence of Failure are? Product Type and Volume Minimum thickness of a NEW tank botto...

what is the minimum thickness for a tank floor plate with no means for leak detection or secondary containment if an RBI program is not in place 0.1 inch reference table 4.4 API 653 when a full hydrostatic test is required, it shall be held for 24-hours reference 12.3.1 API 653 how many radiographs shall be taken in a square 2 in x 24 in but welded insert play in a 1-inch thick shell 6 total one horizontal one vertical one in each corner : reference 12.2.1.6.2 API 653 what is the minimum n...

API 653 Closed Book Quiz 2024 Questions & Answers | 100% Correct | Verified API 653 covers which of the following types of tanks? A) Carbon and low alloy steel tanks built to ASME Section VIII, Div. 1 B) Carbon and low alloy steel tanks built to ASME Section X C) Carbon and low alloy steel tanks built to API 650 and 12C D) Carbon and low alloy steel tanks built to API 510 - C API 653 provides the requirements for construction of which of the following? A) Process pressure vessels B) Abo...

API 653 Exam Prep Closed Book 2024 Questions & Answers | 100% Correct | Verified API 653 defines a "Storage tank engineer" as: A) A registered professional engineer in structural steel fabrication B) Person or organization who is knowledgeable and experienced in the engineering disciplines associated with evaluating the integrity and reliability of aboveground storage tanks C) the engineering department of a contractor who makes repairs to aboveground storage tanks D) A professional en...

API 653 Exam Prep - Open Book 2024 Questions & Answers | 100% Correct | Verified *When using the preheat alternative weld method, the temperature shall be checked ___ to assure the minimum temperature is maintained during welding. A) one inch or two times the material thickness whichever is greater, on each side of the groove. B) two inches or two times the material thickness, whichever is great, on each side of the groove C) Three inches or three times the material thickness, whichever i...

API 653 Intro 2024 Questions & Answers | 100% Correct | Verified What does API 653 cover? - Steel storage tanks built to API 650 and its predecessor API 126. Provides minimum requirements for maintaining integrity of such tanks after they have been placed in service and addresses inspection, repair, alterations, relocation, and reconstruction. What is the scope of API 653 limited to? - scope is limited to tank foundation, bottom, shell, structure, roof, attached appurtenances, and nozzles ...

API 653 Questions & Answers | 100% Correct | Verified 2024 API publications necessarily address problems of what type? - Problems of a general nature. (Special notes section) API Standard 653 covers in service steel tanks built to what standards? - This standard covers steel storage tanks built to API 650 and its predecessor API 12C. (1.1.1) What API Standard always governs for tanks that have been placed in service? - In the case of apparent conflicts between the requirements of this sta...

API 653 INTRO QUESTIONS WITH CORRECT ANSWERS { GUARANTEED A+} What does API 653 cover? - Steel storage tanks built to API 650 and its predecessor API 126. Provides minimum requirements for maintaining integrity of such tanks after they have been placed in service and addresses inspection, repair, alterations, relocation, and reconstruction. What is the scope of API 653 limited to? - scope is limited to tank foundation, bottom, shell, structure, roof, attached appurtenances, and n...

API 653 CLOSED BOOK QUIZ WITH CORRECT ANSWERS { GRADED A+} API 653 covers which of the following types of tanks? A) Carbon and low alloy steel tanks built to ASME Section VIII, Div. 1 B) Carbon and low alloy steel tanks built to ASME Section X C) Carbon and low alloy steel tanks built to API 650 and 12C D) Carbon and low alloy steel tanks built to API 510 - C API 653 provides the requirements for construction of which of the following? A) Process pressure vessels B) Aboveg...

API 653 COMPREHENSIVE QUESTIONS AND VERIFIED CORRECT ANSWER EXAM PREPERATION NEWEST UPDATE 2024