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WorksheetsAPI 653 Quiz
Total questions: 95
Worksheet time: 50mins
API 653 Code covers storage tanks that b.we been built or constructed to:
API 650 requirement:; only
API 650 and API 12C requirements
Both API 653 & API 650 requirements
API 653 requirements only
API 653 employs !he principles of:
API 650
API 650 and API 12C
API 620 and API 650
API 620, APT 650 and API 12C
API 653 Scope does NOT cover:
Inspection
Repair & Alteration
Relocation & reconstruction
construction & repair nozzles to the:
When des ibgenuasneddctoyhnasttpirruoctvriiodngedeaetlaeivlesinlaorefnot given,eaqnudaal rtoc nleovtealvpariloavbildeeidn bthye:
as-built standard, details
Current edition of API 653
current edition of API 650
Edition of API 650 clloseo by Engineer
None of these are correct per API 653
WHAT DOCUMENT MAY BE USED 10 evaluare the various types of degradation or test requirements addressed in API 653?
API 579-1/ASME FFS-1
API 580
API 581
API 571
Who has the ultimate responsibility for compliance with API 653 requirements?
Owner/Operator
Owner/Operator Insp. Org.
Owner/Operator Eng. Org.
None of these are correct
If an API 653 provision is in conflict with a jurisdictional regulation or requirement, and the API 653 requirement is more stringent, which of the following statements is correct?
Jurisdictional requirements SHALL govern in all cases and must be used instead of API 653
Jurisdictional requirements SHOULD govern and may (or may not) be used instead of API 653
653 requirements SHALL be followed if they are more stringent than jurisdiction rules
API 653 requirements SHOULD be followed if they are more stringent than jurisdiction rules
To assure safe working practices during inspection, repair and dismantling of tanks, what API guidelines include safeguards for personnel health and safety, prevention of accidental fires and explosions, and the prevention of property damage?
API 2015, API 2016, and API 2217A
API 2201, API 2207, and API 2217A
API 653, API 220 I, and API 2217A
API 2015, API 2207 and API 2217A
Where welding and hot work are involved, WHAT API DOCUMENT states 'Except in areas specifically designated as safe for hot work, a hot work permit shall be obtained before starting any work that can involve a source of ignition.'
API 2015
API 2201
API 2217A
API 12009
What API document provides brief information on inerting tanks?
API 2015
API 2201
API 2217A
API 12009
API 653 standard recognizes fitness-for-service assessment concepts for evaluating in-service degradation of pressure containing components using which of these documents?
API 579-1/ASME FFS-1
API 580
API 581
None of these
API Publication 'Design & Construction of Large, Welded Low Pressure Storage Tanks' is:
API 650
API 12C
None of these
API Publication 'Cathodic Protection of Aboveground Storage Tanks' is:
API 575
API 651
None of these
API Publication 'Lining of Aboveground Petroleum Storage Tank Bottoms' is:
API 575
API 651
API 652
None of these
The critical API Publication titled 'Ventii1g Atmospheric & Low Pressure Storage Tanks' is:
API 2015
API 2016
API 2217A
2000
The API Publication titled 'Safe Hot Tapping Practices in Petro/Petrochem Industries' is:
API 2015
API 2016
API 2217A
The document for 'Personnel Qualification and Certification in NOT' is:
ASNT SNT-TC-IA
ASME V, Article I
ASNT CP-189
API Publication 'Requirements for Safe Entry & Cleaning of Petroleum Storage Tanks' is:
API 2015
API 2016
API 2207
API 2217A
API Publication 'Guidelines/Procedures for Entry & Cleaning of Petroleum Storage Tanks':
API 2015
API 2016
API 2207
API 2217A
API Publication 'Preparing Tank Bottoms for Hot Work' is:
API 2015
API 2016
API 2207
API 2217A
API Publication 'Guidelines for Safe work in inert Confined Spaces (Petro/Petrochem Ind):
API 2015
API 2016
API 2207
API 2217A
API Publication 'Protection against ignitions arising out of static, lightning & stray currents' is:
API 2015
API 2016
API 2217A
None of these
API RP 'Safe Welding, Cutting, and Hot Work Practices in the Petroleum and Petrochemical Industries' is:
API 2015
API 2016
API 2217A
API RP 2009
Work on a tank that changes its physical dimensions or configuration is known as:
Repair
Modification
Replacement
Iteration
If the date of the installation of the component is unknown, then the current applicable standard shall be considered to be the:
as-built STD
Construction STD
Current applicable STD
None of these
The standard (such as API standard or UL standard) used for the construction of the tank component in question is referred to as the:
as-built STD
Construction STD
Current applicable STD
None of these
If this standard is not known, the as-built standard is the standard that was in effect:
at the date of the installation of the component
One year prior to the date of the installation of the component
Six months prior to the date of the installation of the component
None of these is correct using API 653 rules regarding effective dates for documents
What API 653 Annex provides a list of API welded storage tank standards?
Annex A
Annex B
Annex C
Annex D
The standard used for repairs or alterations made after original construction is the:
As-built standard
as-built standard only for those repairs or alterations
Construction STD only for those repairs or alterations
None of these are correct
API 653 Annex A provides a list of API welded storage tank standards that goes back to 1936 and the ALL-WELDED OIL STORAGE TANKS (All Tanks before that were riveted). What was the name of the 1936 API standard?
API 650
API 128
API 620
API 12C
If a tank was built today using an API or UL standard for tanks, it would be referred to as:
As-built STD
Construction STD
current applicable STD
None of these
An Authorized Inspector is an employee of an Authorized Inspection Agency certified per:
Annex A
Annex B
Annex C
Annex D
Which of these is NOT an Authorized Inspector Agency?
Inspection organization of the jurisdiction where the AST is operated
Inspection organization of the Insurance Co. licensed and registered to write AST insurance
Owner/operator of AST(s) who maintains an inspection organization for activities relating only to her equipment and for ASTs intended for sale or resale.
Independent organization or individual under contract to/under direction of owner/operator and recognized or otherwise not prohibited by the jurisdiction where the AST is operated.
Which of the following is considered an Authorized Inspector Agency?
Inspection Organization of the jurisdiction where the AST is operated
Inspection Organization of Insurance Co. licensed/registered to buy other AST insurance policies
Owner/operator of AST(s) who maintains an inspection organization for activities relating only to his/her equipment and for ASTs intended for sale or resale.
Independent organization or individual under contract to/under direction of owner/operator and prohibited by the jurisdiction where the AST is operated.
An employee of an authorized inspection agency that is certified as an aboveground storage tank inspector per Annex D of API 653 is called:
Inspector
Tank Inspector
Aboveground Storage Tank Inspector
None of these
The area on the tank bottom where the settlement begins is called:
Bulging Point
Settlement Point
Breakover Point
None of these
The tank for which corrosion rates are NOT known is called the:
Candidate Tank
Control Tank
Critical Service Tank
Critical Tank
The tank for which corrosion rates are known is called the:
Candidate Tank
Control Tank
Critical Service Tank
Critical Tank
A 'change in service' from previous operating conditions involves different properties of stored product. A 'change in service' may include all of the following EXCEPT:
Increase or decrease in temp or pressure
Increase or decrease in Specific Gravity
Change in degree of Corrosivity
Change in the corrosion rate
Per API 653, the definition for 'Corrosion rate' is:
Total metal loss divided by the period of time over which the metal loss occurred
Metal loss subtracted from the period of time over which the metal loss occurred
Metal loss multiplied by the period of time over which the metal loss occurred
None of the above is correct
The critical zone is that portion of the tank located at the:
Bottom or annular plate within 3 in. of inside edge of shell, measured radially inward
Shell to bottom or annular plate within 3 in. of inside edge of shell, measured radially inward
Bottom or annular plate within 3 in. of inside edge of shell, measured radially outward
Shell to bottom or annular plate within 3 in of inside edge of shell measured radially outward
A formal visual inspection, supervised by an authorized inspector, to assess all aspects of the tank as possible without suspending operations or requiring tank shutdown is:
A formal visual inspection, supervised by an authorized inspector, to assess all aspects of the tank as possible without suspending operations or requiring tank shutdown is called a (n):
On-Stream Inspection
External Inspection
Routine Inspection
None of these
Methodology where flaws contained within a structure are assessed to determine the adequacy of the flawed structure for continued service without imminent failure is:
Process Safety Management Assessment
Risk-Based Inspection Assessment
Fitness-For-Service Assessment
None of these are correct
This term identifies a procedure for installing a nozzle in a shell of a tank that is in service:
Major alteration
Alteration Repair
Hot tap
None of these
Hydrotest is defined as a test performed with water, where the test load is produced by:
Static fluid head
Total static head
None of these
An internal inspection is best defined by which of the following statements:
Informal incomplete inspection of all accessible internal tanks supervised by an authorized inspector
None of these
Installing a shell penetration larger than 12 inches beneath design liquid level is considered:
Major alteration
None of these
Installing a bottom penetration within 12 inches of the shell is considered:
Major alteration
None of these
Calling a new bottom that results in removal of any floor plate or annular ring within the critical zone is:
Repair
None of these
Complete or partial (if more than weld thickness) removal replacement of more than 12 inches of vertical weld joining shell plates or radial weld joining the annular plate ring is:
Repair
Alteration
Major repair
None of these
Removing and replacing or adding a shell plate beneath the design liquid level where the longest dimension of the replacement plate exceeds 12 inches is considered:
Repair
Major repair
None of these
Removing or replacing annular plate ring material where the longest dimension of the replacement plate exceeds 12 inches is considered:
Repair
Alteration
Major repair
None of these
Work necessary to maintain or restore a tank to a condition suitable for safe operation is:
Alteration
Repair
Major repair
None of these
Removal and replacement of material such as roof, shell, or bottom material, including weld metal to maintain tank integrity is considered:
Alteration
Repair
Major repair
None of these
Re-leveling and/or minor (AST Engineer deemed it to be minor shell jacking) shell jacking at a tank shell, bottom, or roof is considered:
Alteration
Repair
Major repair
None of these
Adding or replacing reinforcing plates (or portions thereof) to existing shell penetrations:
Alteration
Repair
Major repair
None of these
Repair of flaws, such as tears or gouges, by grinding and/or gouging followed by welding:
Alteration
Repair
Major repair
None of these
The legal entity having both control of and/or responsibility for operation & maintenance of an existing storage tank is called:
Owner/Operator
Owner/User
Responsible Operating Organization
Jurisdiction
Any work necessary to reassemble a tank that has been dismantled and relocated to a new site is called:
Relocation
Construction
Reorganization
Reconstruction
A condition that exists when the material of a component is deemed acceptable for use by provisions of many requirements for Brittle Fracture assessment using the decision tree:
Unknown toughness
Acceptable toughness
Recognized toughness
None of these
A condition that exists when it cannot be demonstrated that the material of a component satisfies the definition of recognized toughness.
Unknown toughness
Acceptable toughness
Recognized toughness
None of these
Tank material may likely satisfy the recognized toughness definition if it was constructed:
To the 1st Edition of API 650 or later
To the 3rd Edition of API 650 or later
To the 5th Edition of API 650 or later
To the 7th Edition of API 650 or later
Tank material may likely satisfy the recognized toughness definition if it was constructed:
To the 5th Edition of API 650 (Appendix A)
To the 5th Edition of API 650 (Appendix C)
To the 5th Edition of API 650 (Appendix E)
To the 5th Edition of API 650 (Appendix G)
Recognized toughness is a condition that exists when the material of a component is deemed acceptable for use by the provisions of any of the following EXCEPT:
Based on the edition of standard of tank's original construction, or by coupon testing
Based on the Impact Test exemption curves (API 650)
Based on Engineer selected design metal temp
Based on thickness alone
Tank material may likely satisfy the recognized toughness definition if it is no thicker than:
¼ inch
½ inch
¾ inch
One inch
Material may likely satisfy the recognized toughness definition if metal temperature operates at temperatures not less than:
0°F
None of these
An organization having assigned responsibility by the owner/operator to design and/or reconstruct a tank.
Repair Organization
Relocation Organization
Construction Organization
Reconstruction Organization
Which of the following meets the definition of a repair organization?
Owner/operator of ASTs who repairs or alters his own equipment without following API 653
Contractor making repairs/alterations to API 653 with quals acceptable to AST Owner/Op.
One who makes repairs per API 653 but is outside of and not authorized by the jurisdiction
Contractor making repairs/alterations with qualifications acceptable to AST Owner/Op.
Which of the following DOES NOT meet the definition of a repair organization?
Owner/operator of ASTs who repairs or alters his own equipment per API 653
Contractor making repairs/alterations to API 653 with quals acceptable to AST Owner/Op.
Owner/operator of ASTs who repairs or alters his own equipment as he sees necessary
One who is authorized by the jurisdiction, and who makes repairs per API 653
Process by which corrosion rates & inspection intervals are established for a candidate tank using corrosion rates and service history from a control tank for the purpose of establishing the next inspection date is called a (n):
Corrosion Rate determination
Inspection Interval assessment
Similar service assessment
None of these
One or more persons or organizations acceptable to owner/operator & knowledgeable & experienced in the engineering disciplines associated with evaluating mechanical & material characteristics that affect the integrity and reliability of aboveground storage tanks is:
Fitness for Service Organization
Engineering Organization
Storage Tank Engineer
None of these
Who consults with appropriate specialists & can be regarded as a composite of all entities needed to properly assess technical requirements that affect integrity & reliability of ASTs?
Owner/Operator
Engineering Organization
Engineer
Storage Tank Engineer
A evaluation is required to determine a tank's suitability for continued service when:
Tank inspection results show a change has occurred from its original physical condition
Tank inspection results provide both a short term & long term component corrosion rate
Tank inspection results provide a current thickness of a tank's bottom plates using MFL
Tank inspection results provide a remaining life value for any tank component
Roof plates must be repaired or replaced due to corrosion whenever holes are found OR:
The average 't' = less than 0.100 in. @ a 10 in.' area
The average 't' = less than 0.090 in. @ a 100 in.' area
The average 't' = less than 0.100 in. @ a 100 in.2 area
The average 't' = less than 0.090 in. @ a 10 in. area
When inspecting fixed roof support members (rafters, girders, columns), particular attention must be given to the supporting pipe columns because:
These columns often exhibit settlement problems that may result in local cracking/leaks
These columns often exhibit vapor space corrosion above the liquid fill line of the tank
These columns may possibly suffer from severe internal corrosion that is not visually evident
These columns may have clogged drain holes allowing hydrocarbons to be stored inside
Methods employed to inspect overhead roof support members for soundness shall be acceptable to the:
Responsible Inspector
Authorized AST Inspector
Owner/Operator's Inspection Organization
AST Engineer
A shell-to-shell joint is considered frangible IF:
The joint slope does not exceed 2:12 & support members are not directly attached to a roof
It is attached to the top angle of the tank with a continuous fillet weld all around on the top
It is attached to the top angle of the tank with an intermittent fillet weld all on the top
It will fail prior to the shell-to-bottom joint in the event of excessive internal pressurization
Which statement is true regarding evaluation of corroded floating roof plates & pontoons?
Areas of roof plate and pontoons showing cracks or holes may be repaired or replaced
Holes through the floating roof plates may be patch repaired or the plates fully replaced.
Pitted areas may be evaluated to determine likeliness of thru-pitting before a next internal inspection.
If thru-pitting will occur before next internal inspection, affected areas must be repaired or replaced
Guidance for the evaluation of existing floating roofs shall be based on:
Criteria of API 653, Annex I-1 (external floating roofs) & Annex J (Internal floating roofs)
Criteria of API 575, Annex D (external floating roofs) & Annex L (Internal floating roofs)
Criteria of API 650, Appendix C (external floating roofs) & Appendix H (Internal floating roofs)
Criteria of API 2217A, Guidelines for the Evaluation of Existing Floating Roof Tanks
Regarding API 650, Appendix M, which of the following statements is true regarding a tank's service to operate at elevated temperatures?
All reqmls of API 650, App. M shall be met before a service change (to above 220°F)
All reqmls of API 650, App. M shall be considered before a service change (to above 220°F)
All rcqmts of API 650, App. M shall be met before a service change (to above 200°F)
All reqmts of API 650, App. M shall be considered before a service change (to above 200°F)
Pitting does not normally represent a significant threat to the overall structural integrity of a shell unless:
Pits are severe and exceed the .. ½ min t'' requirement of API 653
Pits exceeding '½ min' along any vertical line does not exceed the 2 inch in 8 inch rule
Pits are severe in nature and in close proximity to one another
Pitting rarely if ever represents a significant threat to overall shell structural integrity
When determining a controlling thickness in a shell course with considerable corrosion areas, Authorized Inspector shall determine all of these items (as per 653 procedure) except:
Critical length L = 3.7 ✓012, but not more than 40 inches
Authorized inspector shall select those vertical planes most likely affected by corrosion
Minimum thickness, t2, at any point in a corroded area (excluding widely scattered pits)
Lowest thickness found, ti, and apply 653 criteria using 5 equally spaced measurements
When determining a controlling thickness in a shell course with corroded areas of considerable size, how shall the Inspector determine the lowest average thickness, ti?
Value ti is averaged over length L, using at least five random measurements taken
Value ti is averaged over length L, using at least five equally spaced measurements
Value ti is averaged over length L, using at least five measurements in the thinnest areas
None of these is the correct procedure per API 653
When determining the minimum acceptable shell plate thickness for continued service for any shell course, the value lmin shall NOT be less than:
0.090 inches
0.900 inches
0.009 inches
None of these is correct
When determining the minimum acceptable shell plate thickness for continued service for Shell Course# 1, which of the following shall accurately represent the value 'H'?
H = the height from the bottom of the shell course under consideration to the maximum liquid level when evaluating an entire shell course, in feet (ft) minus (subtracting) one foot
H = the height from the bottom of the length (from the lowest point of the bottom thinned area) to the maximum liquid level, in feet (ft)
H = the height from the lowest point within any location of interest (such as the centerline of a new nozzle to be installed) to the maximum liquid level, in feet (ft)
H = the height from the bottom of the shell course under consideration when evaluating an entire shell course, in feet (ft) to the maximum liquid level
When determining the minimum acceptable shell plate thickness for continued service for an alteration using a new nozzle (value = nozzle centerline elevation), which of the following shall accurately represent the value 'M'?
H = the height from the bottom of the shell course under consideration to the maximum liquid level
H = the height from the bottom of the shell course under consideration to the maximum liquid level, in feet (ft)
H = the height from the lowest point within any location of interest to the maximum liquid level, in feet (ft)
H = the height from the bottom of the shell course under consideration to the maximum liquid level when evaluating an entire shell course, in feet (ft)
Using this formula, hydrostatic test height is calculated after determining the controlling thickness:
For an entire shell course
For a location of interest within any shell course
For a locally thinned area within any shell course
Of a portion of the shell course at the lowest elevation in the location of interest
Using this formula after a major alteration (adding a 16 NPS Nozzle), hydrostatic test height is calculated after determining the controlling thickness:
Of an entire shell course
For a location of interest within any shell course
For a locally thinned area within any shell course
Of a portion of the shell course at the lowest elevation in the location of interest
Toe Joint Efficiency 'E' value for a Welded joint in a tank (Assume 7m edition & later) and using No Radiography (RT), Spot RT and Basic Standard RT (respectively) is:
No RT= .70, Spot RT= .80, and Basic Standard RT= 0.90
No RT= .70, Spot RT= .85, and Basic Standard RT= 0.90
No RT= .70, Spot RT= .85, and Basic Standard RT= 1.00
No RT= .70, Spot RT= .90, and Basic Standard RT= 1.00
Tank shell distortions include all of the following EXCEPT:
Out-of-roundness
Buckled areas and flat spots
Peaking and banding at weld joints
Shell distortion is most likely caused by which of the following
Historically, causes of Bottom Failure include all of the following EXCEPT:
Roof support columns welded to the tank bottom to restrict movement
Rock or gravel foundation pads with voids in areas that should have been filled-in
Homogeneous fill under the tank bottom (the contents within a sand foundation pad)
Sumps installed after the floor was installed where voids exist beneath the sand pad or base.
Historically, causes of Bottom Failure include all of the following EXCEPT:
Under-side corrosion (normally in the form of pitting)
Adequate drainage resulting in surface water filling the tank dike area
Lack of an annular plate ring when required
Uneven settlement that results in high localized stresses in the bottom plates
Best Tank Inspector on Planet Earth has items to add to API 653 Causes of Tank Bottom Failure list. Which of these is NOT correct and is not a cause of tank bottom failure?
Failure to assure a level compacted foundation pad before floor plates are installed by crane
Tank Bottom Release Prevention Systems per API 653 include all of these EXCEPT:
Internal inspection of the tank bottom
Installing an area impressed current cathodic protection system for the entire tank farm
Tank leak detection systems and testing methods are listed and covered by:
API 653
API 650
API 657
API 651
