API 653 Recertification Quiz
API 653 Recertification Quiz With Complete
Solution.
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? - ✔️✔️✔️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: - ✔️✔️✔️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: - ✔️✔️✔️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? - ✔️✔️✔️20,000 lbf/in2
In regards to underside corrosion on tank bottoms, the corrosion rate of steel in a wet
environment. - ✔️✔️✔️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: - ✔️✔️✔
️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
maximum initial inspection interval is: - ✔️✔️✔️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
which code? - ✔️✔️✔️API RP 579, section 4, 5 or 6.
API Recertification Quiz Page 1
, API 653 Recertification Quiz
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? - ✔️✔️✔️200°F
When evaluated an existing 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? - ✔️✔️✔️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: - ✔️✔️✔️The as built standard
which is an advantage of thick film UN-REINFORCED linings ? - ✔️✔️✔️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 critical zone should be ? - ✔️✔️✔
️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 acceptable for continued
service? - ✔️✔️✔️Examined by MP inspection with no rejectable indications.
The requirements of which standard shall be considered in the evaluation and alteration to
the tank roof and roof-to-shell junction ? - ✔️✔️✔️Current applicable standard
Welding procedure for ladder and platform assemblies, but not their attachment to the tank?
- ✔️✔️✔️Shall comply with either AWS D1.1, AWS D1.6 or ASME Code Section IX.
In floating roof tanks, shell nozzles without internal piping within operating range of the
floating roof shall be supplied? - ✔️✔️✔️Flush on the inside of the tank.
API Recertification Quiz Page 2
API 653 Recertification Quiz With Complete
Solution.
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? - ✔️✔️✔️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: - ✔️✔️✔️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: - ✔️✔️✔️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? - ✔️✔️✔️20,000 lbf/in2
In regards to underside corrosion on tank bottoms, the corrosion rate of steel in a wet
environment. - ✔️✔️✔️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: - ✔️✔️✔
️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
maximum initial inspection interval is: - ✔️✔️✔️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
which code? - ✔️✔️✔️API RP 579, section 4, 5 or 6.
API Recertification Quiz Page 1
, API 653 Recertification Quiz
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? - ✔️✔️✔️200°F
When evaluated an existing 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? - ✔️✔️✔️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: - ✔️✔️✔️The as built standard
which is an advantage of thick film UN-REINFORCED linings ? - ✔️✔️✔️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 critical zone should be ? - ✔️✔️✔
️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 acceptable for continued
service? - ✔️✔️✔️Examined by MP inspection with no rejectable indications.
The requirements of which standard shall be considered in the evaluation and alteration to
the tank roof and roof-to-shell junction ? - ✔️✔️✔️Current applicable standard
Welding procedure for ladder and platform assemblies, but not their attachment to the tank?
- ✔️✔️✔️Shall comply with either AWS D1.1, AWS D1.6 or ASME Code Section IX.
In floating roof tanks, shell nozzles without internal piping within operating range of the
floating roof shall be supplied? - ✔️✔️✔️Flush on the inside of the tank.
API Recertification Quiz Page 2
