API 653 Closed book quiz
API 653 covers which of the following types of tanks?
A) Carbon and low alloy steel tanks built to ASME Section VIII, Div. 1
B) Carbon and low alloy steel tanks built to ASME Section X
C) Carbon and low alloy steel tanks built to API 650 and 12C
D) Carbon and low alloy steel tanks built to API 510 - correct answer-C
API 653 provides the requirements for construction of which of the following?
A) Process pressure vessels
B) Aboveground petroleum storage tanks
C) LNG Storage spheres
D) This standard does not provide construction requirements - correct answer-D
API 653 provides for all but which of the following is not with regard to aboveground storage
tanks?
A) Repair
B) Operation
C) Relocation
D) Alteration - correct answer-B
The scope of API 653 is limited to all of the following except?
A) Tank foundation
B) Tank bottom
C) Tank roof
D) Tank mixing motor - correct answer-D
The API 653 standards states that many of requirements for design, welding and materials
of API 650 and API-12C can be applied with regard to __________.
A) Repair, inspection, rating and alteration
B) Repair, personnel assignment, rating and alteration
C) Inspection, refinery equipment, electrical controls and repairs
D) Alteration, product in storage, rating and inspection - correct answer-A
In the application of the requirements for welding, design and materials of API 650 or
API-12C to in-service aboveground storage tanks (AST), which of the following code or
standard takes precedence?
A) ASME Section VIII, Pressure Vessels
B) API-12C
C) API 653
D) API 650 - correct answer-C
The API 653 Standard may only be applied to AST that have been constructed to and meet
the requirements of API 650.
A) True
B) False - correct answer-B
,The use of API 653 is intended for organizations that have personnel who technically trained
and experienced in which of the following?
A) All ASME, AWS, ASTN and API codes and standards
B) Tank design, fabrication, repair, construction and inspection
C) Refinery operations, safety requirements, personnel management and refinery design
D) Mechanical integrity program, OSHA and Process Safety - correct answer-B
When design and construction details are not given and not available in the original
construction standard, then details that will provide a level of integrity equal to the current
edition of what Code or Standard must be used?
A) ASME Section VIII, Div. 1, Pressure vessels
B) ASME Section VIII, Div. 2, Alternative Rules for Pressure vessels
C) API 650
D) API-12C - correct answer-C
Ultimate responsibility for compliance with this standard rests with ________.
A) The owner/operator
B) The owner/operator's inspector
C) The repair organization of owner/operator
D) The manufacturer of the AST - correct answer-A
According API 653 if any provision presents a direct or implied conflict with any statutory
regulation, the regulation governs. What governs if API 653 requirements are more stringent
than the statutory regulation?
A) The statutory regulation applies in all cases
B) The conflict must be submitted to the API
C) The owner/operator has the option of applying the requirement best suited to the situation
D) The API 653 requirement shall govern - correct answer-D
Safe working practices shall comply with what requirements concerning confined space
entry?
A) Procedures must comply with any trade developed safety precautions
B) Procedures must comply with any federal or state regulations
C) Procedures need only comply with owner/operator requirements
D) Procedures need only comply with NFPA requirements - correct answer-B
When must an evaluation, to determine the suitability for continued use, be conducted?
A) Evaluations shall be conducted when a tank inspection reveals a change has occurred
from the original physical condition of the tank
B) Evaluations shall be conducted at least annually
C) Evaluations shall be conducted at an interval not to exceed the calculated tank inspection
frequency
D) Evaluations shall be conducted once each ten years of service - correct answer-A
What factors are required for consideration when performing an evaluation for continued use
of an AST?
A) only those listed in API 653
,B) the recommended list of consideration provided in API 510 can be modified to suit this
purpose
C) Engineering analysis and judgment required for each situation
D) Only those items requested by the Certified AST inspector - correct answer-C
Roof plates corroded to an average thickness of less that _______ inch in any _______
square inch area shall be repaired or replaced
A) 0.9 inch in any 100 square inch area
B) 0.09 inch in any 10 square inch area
C) 0.09 inch in any 144 square inch area (1 square foot)
D) 0.09 inch in any 100 square inch area - correct answer-D
The method of inspecting roof support members shall be acceptable to whom?
A) manufacturer
B) inspector
C) owner/operator
D) operations manager - correct answer-B
During the inspection of fixed roof support members, particular attention must be given to
_________
A) severe external corrosion of the roof plate support structures are attached
B) severe internal corrosion of pipe columns
C) severe internal corrosion of the roof plate where support structures are attached
D) deterioration of wind girders at the point of attachment - correct answer-B
Inspection of floating roofs is limited to roof plates and pontoons
A) True
B) False - correct answer-B
Evaluating of existing floating roofs shall be based on the criteria of
A) API 650, Ap. C, Ap. H
B) API 650, Par. 6.4.3, Par. 6.5.3
C) ASME Sec. VIII, Div. I, Ap. C, Ap. H
D) ASME Sec. VIII, Div. II - correct answer-A
What API Standard or RP must be used for evaluating the effects of design partial vacuum
on tank roofs?
A) API 620
B) API 650
C) API 651
D) API 652 - correct answer-A
Above what operating temperature shall API 650 Ap. M be conducted before changing the
service?
A) 500 F
B) 400 F
C) 300 F
D) 200 F - correct answer-D
, Under what conditions may tank operated at a temperature lower than the original design?
A) When the requirements for impact testing of ASME Sec. VIII, Div. 1 have been met
B) When the requirements of API 650 have been met
C) When the requirements of ASTM A-370 have been met
D) When the requirements of ASTM A-20 have been met - correct answer-B
Flaws, deterioration or other conditions that might adversely affect the performance or
structural integrity of the shell of an existing tank must be evaluated. Personnel experienced
in tank design shall conduct the evaluation. This analysis shall take into account any of the
following except:
A) fluid static head
B) internal and external pressure
C) organization that manufactured the tank
D) seismic loads - correct answer-C
Of the following, which is not an option available to the owner/operator if it is not possible to
satisfy the requirements for minimum thickness calculations for a weld tanks?
A) repair damaged area
B) reduce allowable liquid level
C) retire the tank
D) reduce the fill rate the tank fills slower and applies pressure gradually - correct answer-D
Out-of-roundness, buckled areas, flat spots and peaking and banding of welded joints are all
examples of __________
A) shell distortions
B) flaws
C) discontinuities
D) severe damage - correct answer-A
Shell distortions require the tank to be immediately removed from service and inspected.
A) True
B) False - correct answer-B
Flaws such as cracks or laminations shall be thoroughly examined to determine their nature
and extend and the need for repair.
A) True
B) False - correct answer-A
What if anything should be done with cracks in the shell-to-bottom weld?
A) sealed with caulking and tank returned to service
B) the welds can have a cover weld pass applied over them to prevent leakage
C) cracks of this type are critical and the tank must be retired from service since repairs are
prohibited
D) cracks in the shell-to-bottom weld are critical and shall be removed and repair - correct
answer-D
API 653 covers which of the following types of tanks?
A) Carbon and low alloy steel tanks built to ASME Section VIII, Div. 1
B) Carbon and low alloy steel tanks built to ASME Section X
C) Carbon and low alloy steel tanks built to API 650 and 12C
D) Carbon and low alloy steel tanks built to API 510 - correct answer-C
API 653 provides the requirements for construction of which of the following?
A) Process pressure vessels
B) Aboveground petroleum storage tanks
C) LNG Storage spheres
D) This standard does not provide construction requirements - correct answer-D
API 653 provides for all but which of the following is not with regard to aboveground storage
tanks?
A) Repair
B) Operation
C) Relocation
D) Alteration - correct answer-B
The scope of API 653 is limited to all of the following except?
A) Tank foundation
B) Tank bottom
C) Tank roof
D) Tank mixing motor - correct answer-D
The API 653 standards states that many of requirements for design, welding and materials
of API 650 and API-12C can be applied with regard to __________.
A) Repair, inspection, rating and alteration
B) Repair, personnel assignment, rating and alteration
C) Inspection, refinery equipment, electrical controls and repairs
D) Alteration, product in storage, rating and inspection - correct answer-A
In the application of the requirements for welding, design and materials of API 650 or
API-12C to in-service aboveground storage tanks (AST), which of the following code or
standard takes precedence?
A) ASME Section VIII, Pressure Vessels
B) API-12C
C) API 653
D) API 650 - correct answer-C
The API 653 Standard may only be applied to AST that have been constructed to and meet
the requirements of API 650.
A) True
B) False - correct answer-B
,The use of API 653 is intended for organizations that have personnel who technically trained
and experienced in which of the following?
A) All ASME, AWS, ASTN and API codes and standards
B) Tank design, fabrication, repair, construction and inspection
C) Refinery operations, safety requirements, personnel management and refinery design
D) Mechanical integrity program, OSHA and Process Safety - correct answer-B
When design and construction details are not given and not available in the original
construction standard, then details that will provide a level of integrity equal to the current
edition of what Code or Standard must be used?
A) ASME Section VIII, Div. 1, Pressure vessels
B) ASME Section VIII, Div. 2, Alternative Rules for Pressure vessels
C) API 650
D) API-12C - correct answer-C
Ultimate responsibility for compliance with this standard rests with ________.
A) The owner/operator
B) The owner/operator's inspector
C) The repair organization of owner/operator
D) The manufacturer of the AST - correct answer-A
According API 653 if any provision presents a direct or implied conflict with any statutory
regulation, the regulation governs. What governs if API 653 requirements are more stringent
than the statutory regulation?
A) The statutory regulation applies in all cases
B) The conflict must be submitted to the API
C) The owner/operator has the option of applying the requirement best suited to the situation
D) The API 653 requirement shall govern - correct answer-D
Safe working practices shall comply with what requirements concerning confined space
entry?
A) Procedures must comply with any trade developed safety precautions
B) Procedures must comply with any federal or state regulations
C) Procedures need only comply with owner/operator requirements
D) Procedures need only comply with NFPA requirements - correct answer-B
When must an evaluation, to determine the suitability for continued use, be conducted?
A) Evaluations shall be conducted when a tank inspection reveals a change has occurred
from the original physical condition of the tank
B) Evaluations shall be conducted at least annually
C) Evaluations shall be conducted at an interval not to exceed the calculated tank inspection
frequency
D) Evaluations shall be conducted once each ten years of service - correct answer-A
What factors are required for consideration when performing an evaluation for continued use
of an AST?
A) only those listed in API 653
,B) the recommended list of consideration provided in API 510 can be modified to suit this
purpose
C) Engineering analysis and judgment required for each situation
D) Only those items requested by the Certified AST inspector - correct answer-C
Roof plates corroded to an average thickness of less that _______ inch in any _______
square inch area shall be repaired or replaced
A) 0.9 inch in any 100 square inch area
B) 0.09 inch in any 10 square inch area
C) 0.09 inch in any 144 square inch area (1 square foot)
D) 0.09 inch in any 100 square inch area - correct answer-D
The method of inspecting roof support members shall be acceptable to whom?
A) manufacturer
B) inspector
C) owner/operator
D) operations manager - correct answer-B
During the inspection of fixed roof support members, particular attention must be given to
_________
A) severe external corrosion of the roof plate support structures are attached
B) severe internal corrosion of pipe columns
C) severe internal corrosion of the roof plate where support structures are attached
D) deterioration of wind girders at the point of attachment - correct answer-B
Inspection of floating roofs is limited to roof plates and pontoons
A) True
B) False - correct answer-B
Evaluating of existing floating roofs shall be based on the criteria of
A) API 650, Ap. C, Ap. H
B) API 650, Par. 6.4.3, Par. 6.5.3
C) ASME Sec. VIII, Div. I, Ap. C, Ap. H
D) ASME Sec. VIII, Div. II - correct answer-A
What API Standard or RP must be used for evaluating the effects of design partial vacuum
on tank roofs?
A) API 620
B) API 650
C) API 651
D) API 652 - correct answer-A
Above what operating temperature shall API 650 Ap. M be conducted before changing the
service?
A) 500 F
B) 400 F
C) 300 F
D) 200 F - correct answer-D
, Under what conditions may tank operated at a temperature lower than the original design?
A) When the requirements for impact testing of ASME Sec. VIII, Div. 1 have been met
B) When the requirements of API 650 have been met
C) When the requirements of ASTM A-370 have been met
D) When the requirements of ASTM A-20 have been met - correct answer-B
Flaws, deterioration or other conditions that might adversely affect the performance or
structural integrity of the shell of an existing tank must be evaluated. Personnel experienced
in tank design shall conduct the evaluation. This analysis shall take into account any of the
following except:
A) fluid static head
B) internal and external pressure
C) organization that manufactured the tank
D) seismic loads - correct answer-C
Of the following, which is not an option available to the owner/operator if it is not possible to
satisfy the requirements for minimum thickness calculations for a weld tanks?
A) repair damaged area
B) reduce allowable liquid level
C) retire the tank
D) reduce the fill rate the tank fills slower and applies pressure gradually - correct answer-D
Out-of-roundness, buckled areas, flat spots and peaking and banding of welded joints are all
examples of __________
A) shell distortions
B) flaws
C) discontinuities
D) severe damage - correct answer-A
Shell distortions require the tank to be immediately removed from service and inspected.
A) True
B) False - correct answer-B
Flaws such as cracks or laminations shall be thoroughly examined to determine their nature
and extend and the need for repair.
A) True
B) False - correct answer-A
What if anything should be done with cracks in the shell-to-bottom weld?
A) sealed with caulking and tank returned to service
B) the welds can have a cover weld pass applied over them to prevent leakage
C) cracks of this type are critical and the tank must be retired from service since repairs are
prohibited
D) cracks in the shell-to-bottom weld are critical and shall be removed and repair - correct
answer-D
