API 653 Test Questions and Answers
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 - Answer-0.1 inch reference table 4.4 API 653
when a full hydrostatic test is required, it shall be held for - Answer-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
- Answer-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 - Answer-one : reference 12.2.16 .1 API 653
how much time do you need to keep the radiographs of a reconstructed tank - Answer-1 year reference
13.2.3 API 653
who should conduct visual inspection and review and NDE results? - Answer-the authorized inspector
how much time should the operator keep the cathodic protection records - Answer-5 years
minimum diagnostic length of a radiograph is - Answer-6 inches
, the total metal lost / the period of time over which the metal loss occurred is the - Answer-corrosion
rate
the presence of rock under the steel bottom of an AST would have what effect - Answer-promote
severe Underside corrosion
when do you use thin-film linings - Answer-when the tank is new or has light corrosion
a formal visual external inspection by an authorized inspector shall be made - Answer-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 -
Answer-a National Standard
a welder deposits more metal than Allowed by the WPS what should be done - Answer-re-qualify the
welder
what is the maximum critical length for plate thickness determination - Answer-40 inches
when is it necessary for a hydrostatic test on a reconstructed tank - Answer-always
between thin film and thick film Linings which lining is best for crude oil tank that operates at 190
degrees F - Answer-thin film
what is the maximum spacing for MT prods - Answer-8 inches
what is the height of the lead symbol B that shall be attached to the back of each film holder during each
exposure to determine if Backscatter radiation is exposing the film - Answer-1/2 inch
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 - Answer-0.1 inch reference table 4.4 API 653
when a full hydrostatic test is required, it shall be held for - Answer-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
- Answer-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 - Answer-one : reference 12.2.16 .1 API 653
how much time do you need to keep the radiographs of a reconstructed tank - Answer-1 year reference
13.2.3 API 653
who should conduct visual inspection and review and NDE results? - Answer-the authorized inspector
how much time should the operator keep the cathodic protection records - Answer-5 years
minimum diagnostic length of a radiograph is - Answer-6 inches
, the total metal lost / the period of time over which the metal loss occurred is the - Answer-corrosion
rate
the presence of rock under the steel bottom of an AST would have what effect - Answer-promote
severe Underside corrosion
when do you use thin-film linings - Answer-when the tank is new or has light corrosion
a formal visual external inspection by an authorized inspector shall be made - Answer-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 -
Answer-a National Standard
a welder deposits more metal than Allowed by the WPS what should be done - Answer-re-qualify the
welder
what is the maximum critical length for plate thickness determination - Answer-40 inches
when is it necessary for a hydrostatic test on a reconstructed tank - Answer-always
between thin film and thick film Linings which lining is best for crude oil tank that operates at 190
degrees F - Answer-thin film
what is the maximum spacing for MT prods - Answer-8 inches
what is the height of the lead symbol B that shall be attached to the back of each film holder during each
exposure to determine if Backscatter radiation is exposing the film - Answer-1/2 inch
