API 653 Recertification Quiz with 100% Correct Per API 653 , with of the following is required when converting an existing tank to operation at elevated temperatures when it was not originally designed and constructed to API 650, Appendix M? - Correct Answer ✔️✔️-The Shell to bottom joint shall be evaluated for fatigue When removing an existing tank bottom, all arc -gouged areas of the tank shell -to-
bottom shall be: - Correct Answer ✔️✔️-examined using magnetic particle inspection, and defective areas repaired and re -examined. If RBI assessment has been conducted and the tank has cathodic protection plus a thin -
film lining, the maximum inspection interval is: - Correct Answer ✔️✔️-14 years When installing a new nozzle in a tank of unknow material, what stress value should be used to calculate the required shell thickness and reinforcement? - Correct Answer ✔️✔️-
20,000 lbf/in2 In regards to underside corrosion on tank bottoms, the corrosion rate of steel in a wet environment. - Correct Answer ✔️✔️-may double with every 18 °F increase in temperature above 77 °F. Grade 350W/50W is acceptable for tank plate to a maximum thickness of: - Correct Answer ✔️✔️-45mm ( 1.75in) if fully killed and made to a fine grain practice. If an RBI assessment has been conducted and the tank has a release prevention barrier, the ma ximum initial inspection interval is: - Correct Answer ✔️✔️-25 years As an alternative to the procedures in API 653 for the evaluation of any thinning of the tank shell below minimum required wall thickness may be evaluated for continued service using whic h code? - Correct Answer ✔️✔️-API RP 579, section 4, 5 or 6. When welding on a tank shell constructed of Group I steel that is greater than 1.5 inches thick below what minimum metal temperature ?preheat? - Correct Answer ✔️✔️-
200°F When evaluated an existi ng temperature services tank, which has a successful service history of operation but was not originally designed and constructed to the requirement of API 650, appendix M, which condition temperature has to be used? - Correct Answer ✔️✔️-The max Operating Temperature shall not exceed the temperature at which the tank has successfully operated in the pass. Flange material used for tank repair and alteration shall meet the minimum requirements for the material specifications according to: - Correct Answer ✔️✔️-The as built standard which is an advantage of thick film UN -REINFORCED linings ? - Correct Answer ✔️✔️-
Fast curing and can be put back in service after 24 hours at normal ambient temperature. The perimeter welds on a welded -on patch plate in the critic al zone should be ? - Correct Answer ✔️✔️-Two-pass and examined visually and by either MP or PT. Existent welds on a tank shell are found to e closer than allowed by API 650 (7th Edition). Under what conditions can these welds be considered to be acceptabl e for
bottom shall be: - Correct Answer ✔️✔️-examined using magnetic particle inspection, and defective areas repaired and re -examined. If RBI assessment has been conducted and the tank has cathodic protection plus a thin -
film lining, the maximum inspection interval is: - Correct Answer ✔️✔️-14 years When installing a new nozzle in a tank of unknow material, what stress value should be used to calculate the required shell thickness and reinforcement? - Correct Answer ✔️✔️-
20,000 lbf/in2 In regards to underside corrosion on tank bottoms, the corrosion rate of steel in a wet environment. - Correct Answer ✔️✔️-may double with every 18 °F increase in temperature above 77 °F. Grade 350W/50W is acceptable for tank plate to a maximum thickness of: - Correct Answer ✔️✔️-45mm ( 1.75in) if fully killed and made to a fine grain practice. If an RBI assessment has been conducted and the tank has a release prevention barrier, the ma ximum initial inspection interval is: - Correct Answer ✔️✔️-25 years As an alternative to the procedures in API 653 for the evaluation of any thinning of the tank shell below minimum required wall thickness may be evaluated for continued service using whic h code? - Correct Answer ✔️✔️-API RP 579, section 4, 5 or 6. When welding on a tank shell constructed of Group I steel that is greater than 1.5 inches thick below what minimum metal temperature ?preheat? - Correct Answer ✔️✔️-
200°F When evaluated an existi ng temperature services tank, which has a successful service history of operation but was not originally designed and constructed to the requirement of API 650, appendix M, which condition temperature has to be used? - Correct Answer ✔️✔️-The max Operating Temperature shall not exceed the temperature at which the tank has successfully operated in the pass. Flange material used for tank repair and alteration shall meet the minimum requirements for the material specifications according to: - Correct Answer ✔️✔️-The as built standard which is an advantage of thick film UN -REINFORCED linings ? - Correct Answer ✔️✔️-
Fast curing and can be put back in service after 24 hours at normal ambient temperature. The perimeter welds on a welded -on patch plate in the critic al zone should be ? - Correct Answer ✔️✔️-Two-pass and examined visually and by either MP or PT. Existent welds on a tank shell are found to e closer than allowed by API 650 (7th Edition). Under what conditions can these welds be considered to be acceptabl e for
