API 653 Closed Book Questions 2024 Exam Prep Terms, Questions and Answers

API 653 Closed Book Questions 2024 Exam Prep Terms, Questions and Answers

1. API 653: Certification for tank inspectors 2. Tank reconstruction: Activity requiring a new nameplate after completion 3. Corroded roof plates: Must not be less than 0.09'' thick averaged over any 100 in. squared 4. New nameplate: Added after tank reconstruction 5. Shell thickness readings: Must be within the last 180 days for determining allowable liquid height 6. Pitting: Requires corrective action when remaining thickness is less than 50% t min 7. Critical zone: Includes the bottom within 3'' of the shell 8. Tank age: 20 years old with a bottom thickness of 0.170''; original bottom thick- ness was 0.250'' 9. Interval for next Internal Inspection: 1.5 years for the given tank age and bottom thickness 10. Sacrificial anode: Type of cathodic protection with generally low annual main- tenance costs 11. Hot taps: Permitted only in the liquid section of a tank 12. API 653 hydrotest: Minimum duration is 24 hours 13. Alteration in API 653: Includes the addition of 16 NPS nozzle 14. Vacuum box or tracer gas test: Examination methods for repaired or replaced bottom welds 15. Welding procedures for tank repair: Should be qualified in accordance with ASME BPVC Section IX 16. Lap patch: Installed on a tank bottom with a minimum dimension of 12'' 17. API 653 users: Owner/operator organizations with access to engineers & in- spectors 18. Qualifying a weld procedure: Requires a minimum of 2 tension tests 19. Calcining of tank concrete ringwall: Occurs when the concrete is exposed to high temperature 20. Risk of brittle fracture: Not increased by a change to a product with increased viscosity 21. Most susceptible floating-roof type: Pan type is the most susceptible to sink- ing 22. New materials for repair: Must conform to the current applicable standard 23. Major types of inspection records: Do NOT include operation history 24. Reconstructed tank components: Bottom plates welded to shell must be identified by material type 25. Radiograph indication 'F': Indicates the IQI is placed on the film side 26. Unacceptable repair method: Removing the existing reinforcement pad is NOT an acceptable method of repair 27. Welding position '4G': An over-groove weld position 28. Atmospheric tank air test pressure: Should not exceed 2- inches of water 29. Response to low shell plate thickness: Lower the allowable liquid level 30. Qualifications for external inspection: Certified as an API 653 inspector 31. Settlement causing stress on shell-to-bottom weld: Outof-plane settlement causes the greatest stress 32. Shell lap patches: Allowed only on plate that does not exceed 1/2" 33. Welder's qualification expiration: If not welded using the process within 6 months