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Questions and Answers
API 653 Covers which of the following activities?
API 653 Covers which of the following activities?
- Tank design
- tank fabrication
- tank operation
- tank reconstruction (correct)
Corroded roof plates on a fixed roof tank shall not be less than
Corroded roof plates on a fixed roof tank shall not be less than
- designers recomendation
- 0.090" in any 100 inch squared area (correct)
- 0.050" at any point
- tmin averaged over the critical length
A new nameplate should be added to a tank after
A new nameplate should be added to a tank after
- either major repairs or major alterations
- either major alterations or tank reconstruction
- it has been relocated
- it has been reconstructed (correct)
for a reconstructed tank, the shell thickness readings used to determine the allowable shell height must have been taken within the last:
for a reconstructed tank, the shell thickness readings used to determine the allowable shell height must have been taken within the last:
the impressed current sources of a cathodic protection system should be checked (to see if still operating) every
the impressed current sources of a cathodic protection system should be checked (to see if still operating) every
which of the following is part of the critical zone
which of the following is part of the critical zone
a tank is 20 years old and has a bottom thickness of 0.170". Original bottom thickness was 0.250". Determine the interval for the next internal inspections
a tank is 20 years old and has a bottom thickness of 0.170". Original bottom thickness was 0.250". Determine the interval for the next internal inspections
Widely scattered pitting in a tank shell can be ignored if the extent of the pitting does not exceed
Widely scattered pitting in a tank shell can be ignored if the extent of the pitting does not exceed
Which of the following is an advantage of the galvanic cathodic protection systems
Which of the following is an advantage of the galvanic cathodic protection systems
Hot taps are permitted:
Hot taps are permitted:
An API 653 hydro test shall be held for at least
An API 653 hydro test shall be held for at least
Which of the following activities is considered an alteration in API 653
Which of the following activities is considered an alteration in API 653
repaired or replaced bottom welds shall be examined with either a vacuum box or by using
repaired or replaced bottom welds shall be examined with either a vacuum box or by using
welding procedures for tank repairs to the shell should be qualified in accordance with
welding procedures for tank repairs to the shell should be qualified in accordance with
A lap patch is installed on a tank bottom and the patch plate crosses a tank bottom weld. what is the minimum dimension for this patch plate
A lap patch is installed on a tank bottom and the patch plate crosses a tank bottom weld. what is the minimum dimension for this patch plate
API 653 is intended to be used by Owner/Operator organizations that
API 653 is intended to be used by Owner/Operator organizations that
Which of the following tests are required when qualifying a weld procedure
Which of the following tests are required when qualifying a weld procedure
calcining of a tanks concrete ringwall can occur when the concrete is
calcining of a tanks concrete ringwall can occur when the concrete is
Which of the following does not increase the risk of brittle fracture
Which of the following does not increase the risk of brittle fracture
Which external floating roof is most susceptible to sinking
Which external floating roof is most susceptible to sinking
All new materials used for repairs must conform to
All new materials used for repairs must conform to
which of the following is not considered one of the major types of inspection records
which of the following is not considered one of the major types of inspection records
Which tank component in a reconstructed tank must be identified by material type
Which tank component in a reconstructed tank must be identified by material type
an F on the radiograph indicates
an F on the radiograph indicates
if an atmospheric tank is air tested, the pressure should not exceed
if an atmospheric tank is air tested, the pressure should not exceed
the welding position 4G is a(n)
the welding position 4G is a(n)
A new tank bottom was installed above the existing tank bottom. Now the spacing between a nozzle and the new bottom is below the minimum requirements of API 650. Which of the following is not an acceptable method of repair
A new tank bottom was installed above the existing tank bottom. Now the spacing between a nozzle and the new bottom is below the minimum requirements of API 650. Which of the following is not an acceptable method of repair
During a tank repair, if API 653 conflicts with the design standard, which standard governs?
During a tank repair, if API 653 conflicts with the design standard, which standard governs?
All reconstruction work must be authorized by the
All reconstruction work must be authorized by the
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