Understanding API ICP653 Reading 7-Worksheet-04 Part1

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Q13. In re-erecting a tank shell, what length "sweep-board" and what are maximum allowable values for weld seam peaking? a. 0.50" (1/2") with 36" horizontal sweep board? b. 0.25" (1/4") on verticals; 0.50" (1/2") on horizontal with 36" board c. 0.75" (3/4") with 48" board. d. 1.00" (1") with 48" board. ANS: A Q14. Welding procedure Specs (WPS) are established in Section 11 of API- 653. Welders/operators must be qualified in accordance with which of the codes listed, if the weld is a new shell to nozzle weld. a. AWS b. Section V ASME c. Section VIII ASME d. Section IX ASME ANS: D Charlie Chong/ Fion Zhang
Q15. API-653 (Section 12) requires greater radiographic examination of tank shell welds than does API-650. Relevant to new or repaired vertical joints in existing shell plates, how many radiographs are required? a. Twice those required by API-650. b. API 650 requirements plus one (1) in every joint. c. One (1) for each welder or operator involved on each ring. d. Two (2) for each welder or operator involved on each ring for all plate thicknesses. ANS: ANS: B Charlie Chong/ Fion Zhang
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Understandings API ICP653 Reading 7
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Charlie Chong/ Fion Zhang
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Ctrl + Shift + S = save a copy Ctrl
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Charlie Chong/ Fion Zhang Fion Zhan
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API 653 Exam Administration -- Publ
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• API Recommended Practice 575, I
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Charlie Chong/ Fion Zhang http://gr
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闭门练功 Charlie Chong/ Fion
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1.1 General 1.1.1 This standard cov
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1.4 Safe Working Practices Safety p
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c. An owner or operator of one or m
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3.9 critical zone: The portion of t
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3.16 repair organization: An organi
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organizations Charlie Chong/ Fion Z
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3.21 as-built standard: The standar
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3.23 major alteration or major repa
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g. Removing and replacing part of t
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SECTION 4 - SUITABILITY FOR SERVICE
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4.2 Tank Roof Evaluation (General)
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4.2.4 Change of Service 4.2.4.1 Int
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4.3.1.3 Shell corrosion occurs in m
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EXAMPLE: A tank 38 feet tall, 150 f
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4.3.3 Minimum Thickness Calculation
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G = Highest specific gravity of the
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Sample problem for minimum thicknes
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Maximum Allowable Fill Height Calcu
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Sample problem for maximum allowabl
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Joint Efficiency for the plate For
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For Riveted Tank E is 1.0 for shell
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Table 4.3—Joint Efficiencies for
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B. Tank Shells 1. See prior comment
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4.3.6 Flaws cracks and laminations
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4.4 Tank Bottom Evaluation 4.4.1 Ge
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4.4.6 Bottom Measurements Methods (
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4.4.7.4 Critical zone thickness is
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4.4.8 Minimum "t" - Annular Plate R
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Quiz: Annular Plate t min Annular p
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API653: Table 4.5—Annular Bottom
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API653: Table 4.4—Bottom Plate Mi
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4.5.2 and 4.5.3 General a. For repa
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5.2.1 Reported conditions involving
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5.3 Assessment Procedure 5.3.1 - 5.
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6.2.2 The interval between inspecti
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6.3.3 In-service UT "t" measurement
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API651: 11.3 Cathodic Protection Su
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CP Survey 11.3 Cathodic Protection
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6.4.2 Inspection Intervals 6.4.2.1
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6.4.2.1.2 As an alternative to esta
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6.4.2.2 Subsequent Internal Inspect
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Table 4.4—Bottom Plate Minimum Th
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Quiz: Critical Zone t min t minimum
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Quiz: Bottom Plate excluding Critic
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6.8.2 Construction Records May incl
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6.9 Reports 6.9.1 Recommended repai
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113 Inspection Frequency Considerat
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115 Internal inspection is required
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API 653 Initial Inspection Interval
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119 API 653 Initial Inspection Inte
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125 API 653 Subsequent Inspection I
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129 Steps for corrosion rate calcul
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131 Finally ‐ Calculate Subsequen
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API 653 Subsequent Inspection Inter
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139 Factors to Consider in a RBI As
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141 RBI Inspection • RBI Assessme
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143 Comparison Direct Measurements
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145 Questions ?
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7.3.1.2 If plates are not identifie
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8.5 Shell Penetrations 8.5.1 New/re
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9.2 Removal and Replacement - Shell
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9.2.3 Weld Joint Design 9.2.3.1 Rep
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9.3.1.7 Maximum size of lap patch p
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9.3.3 Lapped patch plates may be us
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9.7 Repair of Shell Penetrations 9.
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9.10 Repair of Tank Bottoms (Defini
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9.10.2.2 New bearing plates are req
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9.10.3.1 Additional Welded-on Plate
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Page 193 and 194: SECTION 13 - MARKING AND RECORD KEE
Page 195 and 196: 13.3 Certification Documentation of
Page 197 and 198: ANS: ANS: Charlie Chong/ Fion Zhang
Page 199 and 200: B.2.2.3 Differential Settlement (ou
Page 201 and 202: B.2.3 Edge settlement B.2.3.1 Occur
Page 203 and 204: APPENDIX C CHECKLISTS FOR TANK INSP
Page 205 and 206: APPENDIX E TECHNICAL INQUIRIES This
Page 207 and 208: G.2.6 qualification test: The demon
Page 209 and 210: G.3 An explanation of Tank Bottom E
Page 211 and 212: API 653 CODE QUIZ Charlie Chong/ Fi
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Page 223 and 224: Q19. A bulge is found on the tank f
Page 225 and 226: Q16. d (1/2") [Paragraph 4.3.3 page
Page 227 and 228: Section 2 650 Summary 2007 Charlie
Page 229 and 230: Charlie Chong/ Fion Zhang
Page 231 and 232: Good Luck! Charlie Chong/ Fion Zhan
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