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API 653 Exam Questions and Answers 100% Pass 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 - ...

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  • January 10, 2025
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Api 653
  • Api 653
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EmilyCharlene
API 653 Exam Questions and
Answers 100% Pass

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 number of radiographs that shall be taken on a circular but

welded insert plate in a shell 1/2 in thick - ✔✔one : reference 12.2.16 .1 API 653


how much time do you need to keep the radiographs of a reconstructed tank - ✔✔1

year reference 13.2.3 API 653


who should conduct visual inspection and review and NDE results? - ✔✔the authorized

inspector




EMILY CHARLENE © 2025, ALL RIGHTS RESERVED 1

, how much time should the operator keep the cathodic protection records - ✔✔5 years


minimum diagnostic length of a radiograph is - ✔✔6 inches


the total metal lost / the period of time over which the metal loss occurred is the -

✔✔corrosion rate


the presence of rock under the steel bottom of an AST would have what effect -

✔✔promote severe Underside corrosion


when do you use thin-film linings - ✔✔when the tank is new or has light corrosion


a formal visual external inspection by an authorized inspector shall be made - ✔✔at

least every five years or RCA / 4N years whichever is less


radiographic density shall be check by densitometer calibrated on a step wedge film

traceable to - ✔✔a National Standard


a welder deposits more metal than Allowed by the WPS what should be done - ✔✔re-

qualify the welder


what is the maximum critical length for plate thickness determination - ✔✔40 inches


when is it necessary for a hydrostatic test on a reconstructed tank - ✔✔always


between thin film and thick film Linings which lining is best for crude oil tank that

operates at 190 degrees F - ✔✔thin film


what is the maximum spacing for MT prods - ✔✔8 inches




EMILY CHARLENE © 2025, ALL RIGHTS RESERVED 2

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