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API 653 EXAM PREP CLOSED BOOK
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API 653 EXAM PREP CLOSED BOOK
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API 653 EXAM PREP CLOSED BOOKAPI 653 defines a "Storage tank engineer" as:
A) A registered professional engineer in structural steel fabrication
B) Person or organization who is knowledgeable and experienced in the engineering
disciplines associated with evaluating the integrity and reliability of aboveground storage
tanks
C) the engineering department of a contractor who makes repairs to aboveground
storage tanks
D) A professional engineer who is also an authorized API 653 inspector - Answers -B
Similar service is means of estimating corrosion rates that:
A) Is Seldom used as a means of scheduling internal inspection intervals
B) Ignores environmental factors in the determination of corrosion rates
C) May be used in addition to or in lieu of actual measurement of corrosion rates
D) Is generally considered as the best methodology for establishing the inspection
intervals - Answers -C
Controlled Deposition welding methods, in lieu of PWHT, is limited to:
A) P-1 materials
B) P-1 and P-3 Materials only
C) P-1, P3, and P4 materials only
D) P-5A materials - Answers -C
Inspection hold points, for tank reconstruction, shall be designated by:
A) The authorized inspector
B) An engineer experienced in storage tank design
C) Agreement between tank owner/user and reconstruction contractor
D) Agreement between and engineer and the authorized - Answers -A
All repair and alteration work shall be approved at all designated hold points and after
completion:
A) Need not be approved if approved will delay work progress
B) By the repair organization of the repairs were done according to the specified repair
and/or alteration procedures
C) By the authorized inspector or experienced storage tank engineer
D) By the authorized inspector only - Answers -C
Alterations to storage tanks, which comply with API 650, must be authorized by:
A) The owner/user
B) The storage tank engineer
C) The authorized inspector
D) The repair organization - Answers -B
A record of non-essential variables used during welding of the test coupon is:
A) Optional on the PQR
,B) Optional on the WPS
C) Required on the PQR
D) Required on the WPQ - Answers -A
Cracks is the shell to bottom weld:
A) Shall be evaluated per the "As built" Standard
B) Shall be removed
C) Shall be evaluated on a case by case basis
D) Shall be evaluated per API 579 - Answers -B
A repair is completed on a nozzle that was originally postweld heat treated(PWHT). It
has been determined that PWHT, of the repair, is inadvisable. Who is required to
conduct a metallurgical review prior to applying one of the alternative methods permitted
in API 653?
A) A professional engineer registered in one or more states or provinces of Canada
B) A Storage tank engineer
C) The Authorized inspector responsible for the repair inspection
D) A Metallurgical engineer experienced in alternative PWHT - Answers -B
What is another term used for "Stray currents"?
A) Short circuits
B) Positive currents
C) Impressed Currents
D) Interface currents - Answers -D
Thick-film linings are commonly reinforced with which of the following?
A) Sand and small diameter gravel
B) Copper wire, Stainless steel wire, and low alloy steel mesh fabric
C)Chopped PVC piping, copped ABS Piping and resin beads
D) Woven glass mat, chopped glass fibers, and organic fibers - Answers -D
How and to what extent are new welds for tank bottom plates required to be examined?
A) Newly welded bottom joints shall be tested their entire length using liquid penetrate
B) Newly welded bottom joints shall be tested their entire length using a vacuum box
and a solution film, or a tracer gas and detector
C) Newly welded bottom joints shall be tested their entire length using visual
examination
D)Newly welded bottom joints shall be tested their entire length using wet fluorescent
magnetic particle examination - Answers -B
According to API 653, no welding is permitted when the temperature of the base metal
is below what value?
A) Base metal temperature below -20 F
B) Base metal temperature below 0 F
C) Base metal temperature below 20 F
D) Base metal temperature below 30 F - Answers -B
,IF an AST is fabricated of material of unknown toughness and meets the thickness and
temperature exemption curve of API 653, the storage tank engineer must concur, in
writing, with the alternative weld method in lieu of PWHT. Who is required to authorize
the alternative and how must this be accomplished?
A) The owner/operator in writing
B) The Owner/operator verbally
C) The Authorized Inspecor in writing
D) The Authorized Inspector verbally - Answers -A
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 a 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 - Answers -A
Inspection Hold points and minimum documentation to be submitted upon job
completion for repairs and alterations will be designated by the:
A) Owner/User's engineering department
B) Repair organization
C) authorized inspector
D) Storage tank inspector - Answers -C
In a SMAW electrode, the "1" refers to:
A) Electrode type
B) Coating characteristics
C) Chemical composition
D) Welding position - Answers -D
NDE is defined as those inspection methods which allow materials to be examined:
A) without damaging the component
B) As an adjunct to visual examination
C) without changing or destroying their usefulness
D) Without using any mechanical force - Answers -C
If the date of the installation of a component is unknown, which standard shall be
considered as the "as-built" standard?
A)1958 edition of API 12C
B) the latest edition of API 650
C) The current applicable standard
D) The latest edition of UL Standard - Answers -C
The deterioration of metals exposed to soils is referred to as:
A) Moisture corrosion
, B) soil resistivity
C) Soil Corrosion
D) Galvanic corrosion - Answers -C
The preheating method alternative to PWHT is limited to:
A) P-1 materials that are required to be impact tested
B) P-1 materials that are not required to be impact testes
C) P-1 or P-3 materials that are required to be impact tested
D) P-1 or P-3 materials that are not required to be impact tested - Answers -B
API 653 defines a "repair organization" as:
A) an owner/operator of aboveground storage tanks who makes repairs or alterations to
tanks owned by others.
B) Anyone who makes repairs or alterations to aboveground storage tanks that is
authorized by the appropriate jurisdiction to make repairs in accordance with ASME
Section VIII
C) Any contractor who repairs or alters aboveground storage tanks.
D) An owner/operator of aboveground storage tanks who repairs or alters his/her own
equipment in accordance with API 653 - Answers -D
Which of the following dimensions would be acceptable for lap-welded patch plate
repair according to API 653?
A) Four inches by five inches
B) Eight inches by two inches
C) Two inches by two inches
D) Six inches by three inches - Answers -A
When a welders test coupon fails by radiography, how is the welder re-tested?
A) The immediate re-test shall be by visual examination
B) The immediate re-test shall be by radiography
C) The immediate re-test shall be by mechanical testing
D) The immediate re-test shall be by both mechanical testing and radiography -
Answers -B
The owner/operator requires and NPS 3-1/2 nozzle to be installed in an in-service tank.
The tank is 110 feet in diameter, 60 feet maximum fill height, shell thickness at the point
of hot tap is 0.75", and the material is of unknown toughness with a minimum design
metal temperature of 38 F. This nozzle is to be installed adjacent to an existing nozzle.
Using the formula Spacing = √(RT) what is the minimum spacing between these
nozzles?
A) 22.24"
B) 9.08"
C) 19.08"
D) 2.24" - Answers -A
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