Closed book 3 Flashcards
The areas where temporary attachments are removed from shell material shall be examined using
a) VT
b) VT and MT
c) VT, and MT or PT
d) VT, MT or PT and RT
c) VT, and MT or PT
What should be marked on all radiograph records of repaired welds in an inservice tank?
a) Inservice
b) Repair
c) ‘R’
d) ‘I’
c) ‘R’
If party’s other than the owner/operator are assigned to relocate and reconstruct a tank, the limits of their responsibilities shall be defined by
a) the owner/operator
b) API 653
c) the juristiction
d) the authorized inspector
a) the owner/operator
An alteration to an atmospheric storage tank includes any work
a) that changes its physical dimension or configuration
b) that changes its operating temperature
c) that changes the operating pressure by changing the specific gravity of the contents
d) that involves welding or hotwork
a) that changes its physical dimension or configuration
The scope of ASME V includes
a) radiography and ultrasonic examination, liquid penetrant and magnetic particle examination, visual examination, leak testing and acoustic emissions examination
b) radiography and ultrasonic examination, liquid penetrant and magnetic particle examination, eddy current examination, visual examination, leak testing
c) radiography and ultrasonic examination, liquid penetrant and magnetic particle examination, visual examination, leak testing
d) radiography and ultrasonic examination, liquid penetrant and magnetic particle examination, eddy current examination, visual examination, leak testing and acoustic emission examination
d) radiography and ultrasonic examination, liquid penetrant and magnetic particle examination, eddy current examination, visual examination, leak testing and acoustic emission examination
longest answer
The purpose for qualifying the procedure specification is
a) the demonstrate that the joining process proposed for construction is capable of producing performance qualification that have the required mechanical properties for the intended application
b) to demonstrate that the joining process proposed for construction is capable of producing joints that have the required physical properties for the intended application
c) to demonstrate that the joining process proposed for construction is capable of producing joints that have the required mechanical properties for the intended application
d) to demonstrate that the joining process proposed for construction is capable of producing joints that have the required performance properties for the intended application
c) to demonstrate that the joining process proposed for construction is capable of producing joints that have the required mechanical properties for the intended application
After welding is complete, but before the tank is filled with water, the reinforcing plate shall be tested by the Manufacturer by applying up to _______ pneumatic pressure between the tank shell and the reinforcement plate using the threaded telltale hole
a) 5 psi
b) 10 psi
c) 15 psi
d) 20 psi
c) 15 psi
The authorized inspector may give prior general authorization for limited or routine repairs provided
a) the engineer is sure the repairs do not require and engineering evaluation
b) the engineer is sure the repairs do not require hydrostatic testing or an engineering evaluation
c) the inspector is sure the repairs do not require hydrostatic testing
d) the inspector is sure the repairs do not require hydrostatic testing or an engineering evaluation
d) the inspector is sure the repairs do not require hydrostatic testing or an engineering evaluation
If information needed to complete the nameplate as required by the as-built standard is not available after and owner has requested a nameplate on a tank without one, the Authorized Inspector may attach
a) a Suitable for Service Nameplate
b) an Assessment Nameplate
c) an Inspection Nameplate
d) a Fitness for Service Nameplate
b) an Assessment Nameplate
The routine in-service inspection may be done by owner/operator personnel, and can be done by other than the authorized inspector, and shall include
a) visual inspection of the tank’s exterior surfaces
b) MT or anchor points or stress concentration points as required by the tank history
c) removal of insulation where required
d) entry to the tank when required
a) visual inspection of the tank’s exterior surfaces
Shearing of plates to be used for fabrication of the shell shall be limited to plates that are
a) 3/8 in.
b) =< 3/8 in.
c) => 3/8 in.
d) < 3/8 in.
b) =< 3/8 in.
Up to and including 1/2
Tank grounding systems components shall be checked
a) visually
b) using MT or PT
c) using EC
d) a and either b or c
a) visually
Acceptance criteria for NDE methods listed in ASME Section V are in
a) ASME Section V
b) ASME Section VIII
c) API 650
d) the referencing Code Section
d) the referencing Code Section
What is the maximum external inspection interval for the following tank?
Construction code : API 650 7th Edition
Original Thickness : 0.5 inch
Current Measured Thickness : 0.4375 inch
Required Thickness : 0.375 inch
Established Corrosion Rate : 0.006 in./year
a) 2 years
b) 5 years
c) 15 years
d) 26 years
a) 2 years
The maximum initial internal inspection interval does not apply to tanks that store ( choose all that apply)
a) highly viscous substances that solidify at temperatures below 110 F
b) any substance not identified or regulated as a hazardous chemical or material under the laws of jurisdiction
c) any substance that the owner/operator has determined will not adversely impact surface of groundwater beyond the facility or affect human health or the environment
d) non-flammable substances that do no pose an immediate threat to personnel
a) highly viscous substances that solidify at temperatures below 110 F
b) any substance not identified or regulated as a hazardous chemical or material under the laws of jurisdiction
c) any substance that the owner/operator has determined will not adversely impact surface of groundwater beyond the facility or affect human health or the environment
Which of the following are not true when making repairs to a tank bottom? (choose all that apply)
a) a welded-on patch plate that is 3/16 thick can be used in the critical zone provided it meets the toughness requirements of API 650
b) perimeter welds on welded-on patch plates shall be three pass minimum
c) a welded-on patch plate can be butt welded to an adjacent existing patch in the critical zone
c) welded-on patch plates can be installed over existing patches outside of the critical zone
b) perimeter welds on welded-on patch plates shall be three pass minimum
c) a welded-on patch plate can be butt welded to an adjacent existing patch in the critical zone
Draw lines from each item whether it is required or not required to be on an inspection report.
a) date of next inspection
b) type of inspection (external/internal)
c) corrosion rates of the bottom
d) corrosion rate of the shell
e) corrosion rate of the roof
f) name, company, NDE certification number and signature of the examiner responsible for the inspection
a) date of next inspection - Not Required
b) type of inspection (external/internal) - Required
c) corrosion rates of the bottom - Required
d) corrosion rate of the shell - Required
e) corrosion rate of the roof - Not Required
f) name, company, NDE certification number and signature of the examiner responsible for the inspection - Not required
Prior to installing the plates in the tank, or before inserting a nozzle into the plate the Manufacturer
a) shall visually examine all edges of shell and roof plates
b) shall visually and with MT, examine all edges of the shell and roof plates
c) shall visually and with UT, examine all edges of shell and roof plates
d) shall visually and with RT, examine all edges of shell and roof plates
a) shall visually examine all edges of shell and roof plates
The portion of the groove face adjacent to the joint root, sometimes referred to as the land is the
a) root face
b) root opening
c) bevel angle
d) groove face
a) root face
The results of NDE work performed by an examiner
a) must be considered in the evaluation of the tank by an authorized inspector
b) must be considered in the evaluation of the tank by an engineer
c) must be considered in the evaluation of the tank by the owner
d) a or b
a) must be considered in the evaluation of the tank by an authorized inspector
Hot taps are not permitted on (drag and drop all that apply into the box)
a) shell material requiring thermal stress relief
b) shell material of unknown toughness
c) shell material that has been in corrosive service
d) shell material that is below the liquid level
e) roof plates
a) shell material requiring thermal stress relief
e) roof plates
The controlled deposition welding method in lieu of PWHT is limited to
a) P-No.1 materials
b) P-No.1, P-No.3 materials
c) P-No.1, P-No.3 and P-No.4 materials
d) P-No.1, P-No.2, P-No.3 and P-No.4 materials
c) P-No.1, P-No.3 and P-No.4 materials
everything but P-No.2 materials
A welding procedure has been qualified for use with the SMAW CDW process in lieu of PWHT where impact testing is a requirement.
The PQR for the procedure was welded using a coupon that was 1.5 inches thick with a 0.50 in. deep groove weld.
What is the deepest groove that can be welded using this procedure?
a) 0.25 in.
b) 0.50 in.
c) 1.5 in.
d) 3.0 in.
b) 0.50 in.
What is the most probable place for caustic cracking in a storage tank?
a) around connections for internal heating units or coils
b) shell to bottom welds
c) insert plate welds
d) roof to shell junction
a) around connections for internal heating units or coils
The plate thickness for welded-on patch plates in the critical zone is
a) minimum 1/4 in.
b) maximum 1/4 in.
c) minimum 3/16 in.
d) maximum 3/16 in.
b) maximum 1/4 in.
An RBI assessment is described in API 653 as a systematic evaluation of
a) the likelihood of failure and the consequence of failure
b) the probability of failure and the consequence of failure
c) the likelihood of failure and the results of failure
d) the likelihood of failure and the damage of failure
a) the likelihood of failure and the consequence of failure
What is the value to use for H in a locally thinned area thickness calculation for a tank with the following data? The tank has a LTA that begins one foot from the bottom of the second course, and is not near any weld seams
Tank diameter : 120 feet
Liquid fill height : 40 feet
Shell Material : A516-55
Shell Course Height : 8 feet
LTA Average Thickness : 0.4375 inch
Interval : 10 years
a) 24 feet
b) 25 feet
c) 31 feet
d) 32 feet
c) 31 feet
40 feet - 8 feet first course - 1 foot(LTA starts one foot from first course) = 31
The total resistance from tank to earth on a tank’s grounding connection should not exceed
a) approximately 5 ohms
b) approximately 15 ohms
c) approximately 25 ohms
d) approximately 45 ohms
c) approximately 25 ohms
What is the length of time required for a hydrostatic test to be held at the maximum height when testing a new tank?
a) 12 hours
b) at least 12 hours
c) 24 hours
d) at least 24 hours
d) at least 24 hours
The basis for repairs to existing tanks under API 650 shall be
a) in accordance with API 650
b) an API 650 equivalence
c) to meet the requirements of API 650
d) to the requirements of API 653
b) an API 650 equivalence
Which of the following welding processes may only be used with prior agreement between the Purchaser and the Manufacturer? ( drag and drop all that apply into the box)
a) oxyfuel
b) electrogas
c) electroslag
d) electron beam
a) oxyfuel
b) electrogas
c) electroslag
Roof plates that have corroded to an average thickness of 0.09 in. in any ______ shall be repaired or replaced.
a) 10 in2
b) 100 in2
c) 1000 in2
d) 10000 in2
b) 100 in2
A failure that has a visible clam shell type fingerprint was likely caused by
a) mechanical fatigue
b) CUI
c) graphitization
d) high temperature hydrogen attack
a) mechanical fatigue
A concrete ringwall shall not be less than
a) 6 in. thick
b) 12 in. thick
c) 18 in. thick
d) 24 in. thick
b) 12 in. thick
RBI assessments on above ground storage tanks shall be carried out in accordance with
a) API 653
b) API 650
c) API 579
d) API 580
d) API 580
What is the maximum external ultrasonic thickness inspection interval for the following tank
Construction Code : API 650 7th Edition
Original Thickness : 1.0 inch
Current Measured Thickness : 0.895 inch
Required Thickness 0.6250 inch
Established Corrosion Rate : 0.007 in./year
a) 1 year
b) 5 years
c) 15 years
d) 19 years
c) 15 years
What is the maximum out of plumbness for the shell of a newly constructed tank when the tank is 40 feet in height?
a) 4.8 inches
b) 2.4 inches
c) 1.2 inches
d) 0.6 inches
b) 2.4 inches
What type of variable is a change in A-No. for procedure qualification using SMAW?
a) essential
b) non-essential
c) supplementary essential
d) not a variable
a) essential
Fitness for service assessments are carried out in accordance with
a) API 579
b) API 580
c) API 575
d) API 653
a) API 579
The minimum thickness of a replacement plate shall be calculated in accordance with
a) the current applicable standard
b) API 650
c) API 653
d) the as built standard
d) the as built standard
What marking would be included on an API 650 tank nameplate when thermal stress relief has been performed on all flush-type cleanout fittings, flush-type shell connections and all shell openings?
a) SR1
b) SR2
c) SR3
d) SR4
d) SR4
The overall arrangement of the grains, grain boundaries, and phases present in a casting is called the
a) casting structure
b) casting grain structure
c) dendritic structure
d) microstructure
d) microstructure
What is the minimum number of settlement points measured during a hydrotest after a major repair
a) 4
b) 8
c) 16
d) 32
b) 8
Leak detection procedures for in-service tanks include (choose all that apply)
a) volumetric level and temperature measurement
b) wicking of shell-to-bottom weld
c) acoustic emission
d) tracer gas under-bottom injection
a) volumetric level and temperature measurement
c) acoustic emission
A welder is qualified to weld in the vertical uphill progression using SMAW. The WPS being used is qualified in both the downhill and uphill progression. Can the welder weld in the downhill progression in accordance with the WPS?
a) yes, as it is a non-essential variable for procedure qualification using SMAW
b) no, as it is a non-essential variable for procedure qualification using SMAW
c) yes, as it is an essential variable for performance qualification using SMAW
d) no, as it is an essential variable for performance qualification using SMAW
d) no, as it is an essential variable for performance qualification using SMAW
How many measurements must be taken over the critical length L to establish the average thickness of a corroded area?
a) no more than 5
b) 5
c) at least 5
d) less than 5
c) at least 5
Industry experience and laboratory tests have shown that a membrane stress of ______ is required to cause brittle failure.
a) at least 5 ksi
b) at least 7 ksi
c) at least 8 ksi
d) at least 9 ksi
b) at least 7 ksi
There are times where additional venting requirements are needed for emergency overpressure scenarios such as external fire. ________ can provide this additional capacity.
a) emergency safety relief valves
b) weight loaded emergency vents
c) pilot operated vent valve
d) emergency pilot valve
b) weight loaded emergency vents
Which of the following is not a physical property of metals?
a) melting temperature
b) ductility
c) electrical conductivity
d) thermal conductivity
b) ductility
The bottom of a concrete ringwall, when founded on soil, shall be a minimum of
a) 6 inches below the lowest adjacent finish grade
b) 12 inches below the lowest adjacent finish grade
c) 24 inches below the lowest adjacent finish grade
d) 36 inches below the lowest adjacent finish grade
c) 24 inches below the lowest adjacent finish grade
What is the dimension of the critical zone of an inservice tank?
a) the portion of the tank bottom or annular plate within 6 in. of the inside edge, measured radially inward
b) the portion of the tank bottom or annular plate within 3 in. of the inside edge of the shell, measured radially outward
c) the portion of the tank bottom or annular plate within 3 in. of the inside edge of the shell, measured radially inward
d) the portion of the tank bottom or annular plate within 6 in. of the inside edge of the shell, measured radially upward
c) the portion of the tank bottom or annular plate within 3 in. of the inside edge of the shell, measured radially inward
In a tank that has experienced uniform corrosion of the lowest shell course, and has the following details, what is the value for G to be used in the hydrostatic height formula?
Tank Diameter : 160 feet
Tank Height : 40 feet
Construction code : API 650 7th Edition, Annex M
Lowest Shell Course Stress : 30.000 lbf/in.2
Joint Efficiency : 0.9
Specific Gravity of Product : 0.85
a) 0.80
b) 0.85
c) 0.9
d) 1.0
d) 1.0
With high enough rate of wetting and water replenishment CUI can occur on insulated equipment
a) between 10 F and 350 F
b) between 140 F and 350 F
c) between 280 F and 350 F
d) at virtually any temperature of practical concern in refining
d) at virtually any temperature of practical concern in refining
The principal causes of foundation concrete deterioration are: ( drag and drop all that apply)
a) calcining
b) attack by underground water
c) attack by frost
d) attack by acids and alkalies
a) calcining
b) attack by underground water
c) attack by frost
d) attack by acids and alkalies
What are some reasons for failures in pressure-vacuum vents and flame arrestors? (choose all that apply)
a) presence of fouling material or debris
b) deposit of foreign substances by birds or insects
c) formation of ice
d) tampering by unauthorized personnel
a) presence of fouling material or debris
b) deposit of foreign substances by birds or insects
c) formation of ice
d) tampering by unauthorized personnel
The critical length L
a) shall always be vertical
b) shall be a minimum of 40 inches
c) shall have no more than 5 thickness readings to determine the average
d) shall be determined by the engineer
a) shall always be vertical
The dimension of the lead letter B used to indicate if protection from backscatter radiation is sufficient
a) is 7/16 in. by 1/16 in. and is unacceptable if a white image of the B appears on a dark background
b) is 1/2 in. by 1/16 in. and is unacceptable if a dark image of the B appears on a lighter background
c) is 1/2 in. by 1/16 and is unacceptable if a dark image of the B appears on a dark background
d) is 1/4 in. by 1/16 in. and is unacceptable if a white image of the B appears on a dark background
a) is 7/16 in. by 1/16 in. and is unacceptable if a white image of the B appears on a dark background
An RPB includes _______ and all other barrier or combinations of barriers placed in the bottom or under a tank. ( choose all that apply)
a) steel bottoms
b) synthetic material
c) clay liners
d) concrete pads
a) steel bottoms
b) synthetic material
c) clay liners
d) concrete pads
Distortion of anchor bolts and excessive cracking of the concrete structures in which they are embedded may be indications of
a) minor foundation settlement
b) tank vacuum distortions
c) tank overpressure uplift condition
d) poorly chosen bolt quality
c) tank overpressure uplift condition
Settlement readings across the bottom must be taken along the equally spaced diametrical spaced measurement lines at a maximum spacing of
a) 6 feet
b) 8 feet
c) 10 feet
d) 12 feet
c) 10 feet
When an entire shell plate is removed and replaced, prior to welding the vertical joints the existing horizontal welds shall be cut for a minimum distance of
a) 6 in. or 6t beyond the new vertical joints
b) 12 in. or 12t beyond the new vertical joints
c) 6 in. beyond the new vertical joints
d) 12 in. beyond the new vertical joints
d) 12 in. beyond the new vertical joints
Cathodic protection systems are intended to
a) mitigate corrosion of steel surfaces in contact with soil
b) mitigate corrosion of steel surface in contact with water
c) mitigate corrosion of steel surface in contact with product
d) mitigate all corrosion in an inservice tank
a) mitigate corrosion of steel surfaces in contact with soil
If a door sheet cut line crosses a lap welded or riveted horizontal seam, the replacement assembly shall be
a) a single plate
b) two separate plates
c) 4 separate plates
d) door sheets cannot cross lap welded horizontal seams
b) two separate plates
Deletion of backing is an essential variable for which of the following welding process for the performance qualification of welders?
a) SMAW
b) SAW
c) GMAW
d) GTAW
e) PAW
a) SMAW
c) GMAW
d) GTAW
e) PAW
Everything but SAW
Lap patch repair plates shall be the smaller of
a) 1/4 in. or the thickness of the shell plate adjacent to the repairs, but not less than 3/16
b) 1/2 in. or the thickness of the shell plate adjacent to the repairs, but not less than 1/4
c) 3/4 in. or the thickness of the shell plate adjacent to the repairs, but not less than 3/16
d) 1/2 in. or the thickness of the shell plate adjacent to the repairs, but not less than 3/16
d) 1/2 in. or the thickness of the shell plate adjacent to the repairs, but not less than 3/16
Inspection while in-service utilizing UT robotic thickness measurement of the bottom is an acceptable substitute for the internal inspection
NO CLUE
Which mode of metal transfer is susceptible to lack of fusion when using GMAW?
a) GMAW short circuit
b) GMAW globular
c) GMAW spray
d) GMAW pulse
a) GMAW short circuit
During reconstruction of a tank, flange fasteners
a) shall meet the material specifications of the as-built standard
b) shall meet the material specifications of the current applicable standard
c) shall meet the material specifications of API 650
d) shall meet the material specifications of API 653
b) shall meet the material specifications of the current applicable standard
Who is responsible for selecting the plane that is most likely to be affected by corrosion when determining the critical length L ?
a) the inspector
b) the owner/user or the inspector
c) the inspector or the engineer
d) the owner/user, the engineer or the inspector
a) the inspector
The aluminum skin on internal floating roofs shall have a minimum nominal thickness of
a) 0.010 in.
b) 0.020 in.
c) 0.030 in.
d) 0.040 in.
b) 0.020 in.
Welding consumables for reconstruction of tanks
a) shall conform to AWS classification applicable
b) shall conform t ASME Section IX
c) shall conform to API 650
d) shall conform to the as-built standard
a) shall conform to AWS classification applicable
Existing welds on the tank shell that are not to be modified or affected by repairs and are closer than required by API 650 are acceptable for service if the welds are examined by
a) VT
b) MT
c) PT
d) RT
b) MT
Selection of the welding method used for preheat in lieu of PWHT shall be made based upon
a) the material to be welded
b) the speed of welding
c) the adequacy of the weld in the as-welded condition at operating and hydrotest conditions
d) the adequacy of the weld in the PWHT condition at operating and hydrotest conditions
c) the adequacy of the weld in the as-welded condition at operating and hydrotest conditions
Flame arrestors should be opened and the screens or pallets visually inspected for cleanliness and corrosion
a) at least once a year
b) at least once a month
c) at least once a week
d) at appropriate intervals
d) at appropriate intervals
The required lifting power of an AC electromagnetic yoke shall be
a) at least 10 lb at the maximum pole spacing that will be used
b) at least 40 lb at the maximum pole spacing that will be used
c) at least 10 lb at the minimum pole spacing that will be used
d) at least 40 lb at the minimum pole spacing that will be used
a) at least 10 lb at the maximum pole spacing that will be used
The installation of a shell penetration larger than NPS 12 beneath the design liquid level is considered
a) a repair
b) an alteration
c) a major repair/ major alteration
d) a penetration cannot be made within 12 inches of the shell
c) a major repair/ major alteration
Rather than using the suitability for service procedures described in API 653, it is acceptable to evaluate thinning below the minimum required thickness using
a) design by analysis methods of ASME Section VIII Div. 2
b) fitness for service methods of API 680
c) suitability for service methods and design of API 650
d) any of the above
a) design by analysis methods of ASME Section VIII Div. 2
When the material specification for the steel from a tank is unknown or obsolete, the test coupons from the welding procedure
a) shall be taken from the actual plate to be used
b) shall be subjected to chemical testing
c) shall be subjected to impact testing
d) shall be subjected to hardness testing
a) shall be taken from the actual plate to be used
Drag and drop the permitted nozzle sizes that would be allowed to be used for a hot tap on a tank with shell plates with unknown toughness
a) NPS 2
b) NPS 4
c) NPS 6
d) NPS 8
e) NPS 10
a) NPS 2
b) NPS 4
Perimeter welds on welded on patch plates in the critical zone shall be a minimum of ________ passes and examined using _______ (choose all that apply)
a) two passes
b) three passes
c) MT
d) VT
e) MT or PT
a) two passes
e) MT or PT
What type of variable is a change from no PWHT to PWHT for procedure qualification using SMAW?
a) essential
b) non essential
c) supplementary essential
d) not a variable
a) essential
Advantages of thin film linings include (choose all that apply)
a) initial cost is typically less than thick film reinforced linings
b) generally more accurate MFL floor scans
c) easier removal at the end of its usable life
d) the life of thin film linings can be greater than 20 years
a) initial cost is typically less than thick film reinforced linings
b) generally more accurate MFL floor scans
c) easier removal at the end of its usable life
d) the life of thin film linings can be greater than 20 years
Condition of tank shell welds shall be evaluated for suitability for service using
a) API 653
b) the as-build standard
c) a fitness for service assessment
d) any of the above
d) any of the above
What is the recommended power source to be used for FCAW?
a) direct current constant voltage
b) direct current constant current
c) alternating current constant voltage
d) alternating current constant current
a) direct current constant voltage
Leaks in tanks are primarily the result of
a) cracks
b) corrosion
c) mechanical damage
e) erosion
b) corrosion
When using magnetic particle examination
a) one examination shall be performed on each area
b) at least 2 examinations shall be performed on each area and the lines of magnetic flux shall be approximately perpendicular to each other
c) at least 2 examinations shall be performed on each area and the lines of magnetic flux shall be approximately parallel to each other
d) at least 2 examinations shall be performed on each area and the lines of magnetic flux shall be approximately perpendicular to the weld being examined
b) at least 2 examinations shall be performed on each area and the lines of magnetic flux shall be approximately perpendicular to each other
For existing tanks that do not have initial settlement data, a program of settlement monitoring should be based on
a) prior service history
b) API 653 Annex B
c) RBI
d) API 650 original requirements
a) prior service history
The thickness that is to be used for calculations during the reconstruction of a tank shall be based on measurements taken ______ prior to relocation
a) more than 180 days
b) within 180 days
c) at least 180 days
d) a minimum of 180 days
b) within 180 days
A full hydrostatic test, held for 24 hours shall be performed on
a) a reconstructed tank
b) a tank that has undergone repairs
c) a tank that has changed service where an engineering evaluation shows no need for hydrostatic testing
d) a tank that has experienced erosion
a) a reconstructed tank
Each film shall show identification of the welder who made the weld. As an alternative to this requirement a weld map showing _________ is acceptable
a) location of welds
b) radiograph number
c) welder identification
d) grading of each weld
a) location of welds
b) radiograph number
c) welder identification
d) grading of each weld
The maximum interpass temperature that shall be achieved using the preheating method in lieu of PWHT where notch toughness is not a requirement is
a) 300 F
b) 400 F
c) 500 F
d) 600 F
d) 600 F
For CDW in lieu of PWHT where impact testing is a design requirement, the welding shall be
a) a controlled deposition technique
b) temper bead technique
c) half bead technique
d) any of the above
d) any of the above
What type of variable is changing to the use of recrushed slag for SAW procedure qualification?
a) essential
b) non-essential
c) supplementary essential
d) not a variable
a) essential
The extent of external ultrasonic thickness measurements of the shell shall be determined by the
a) inspector
b) engineer
c) owner
d) any of the above
c) owner
What is the minimum light intensity required for WFMT?
a) 1076 lux
b) 1000 μW/cm2
c) 100 μW/cm2
d) 100 lux
b) 1000 μW/cm2
For the CDW method in lieu of PWHT where notch toughness testing is a requirement, the maximum diffusible hydrogen designator that can be used with low-hydrogen electrode is
a) H4
b) H8
c) H12
d) H16
b) H8
The temperature range for CUI of carbon steels is between
a) 10 F and 400 F
b) 10 F and 350 F
c) 10 F and 300 F
d) 10 F and 250 F
b) 10 F and 350 F
The presence of moisture in the air during the curing of a lining can cause
a) amine cracks
b) amine blisters
c) amine blush
d) amine blooms
c) amine blush
The minimum thickness in the critical zone for a tank that has a first shell course with a required thickness of 0.5 in. and an original bottom plate thickness of 0.25 in., where no stress analysis has been performed, shall be
a) 0.125 in.
b) 0.250 in.
c) 0.375 in.
d) 0.50 in.
a) 0.125 in.
Unless they are kept continually moist
a) wooden tanks can shrink and may crack when filled
b) wooden tanks can shrink and may leak when filled
c) wooden tanks can swell and may crack when filled
d) wooden tanks can swell and may crack when filled
b) wooden tanks can shrink and may leak when filled
Who is responsible when requesting an Assessment nameplate for an in-service tank when there is insufficient construction and design information to create a Replacement nameplate?
a) owner/ operator
b) Authorized inspector
c) storage tank engineer
d) repair organization
a) owner/ operator
The interval for inspections of a tank, both internal and external, should be determined by
a) the owner
b) the jurisdiction
c) the service history of the tank
d) the design of the tank
c) the service history of the tank
The RBI assessment shall be reviewed and approved by a team at intervals not to exceed
a) 5 years
b) 10 years
c) 15 years
d) 20 years
b) 10 years
What would be reasonable step(s) to prevent or mitigate caustic stress corrosion cracking ? (choose all that apply)
a) cracking can be effectively prevented by means of stress relieving heat treatment
b) 300 series SS will offer immunity from caustic stress corrosion cracking
c) steamout of non-PWHT ‘d carbon steel piping and equipment should be avoided
d) visual inspection of the equipment will help to prevent caustic stress corrosion cracking
a) cracking can be effectively prevented by means of stress relieving heat treatment
c) steamout of non-PWHT ‘d carbon steel piping and equipment should be avoided
What type of inspection is not a recommended method of establishing roof plate integrity for personnel loading?
a) visual inspection
b) MFL(if the roof plate can withstand the weight of the equipment)
c) ultrasonic thickness examination
d) hammer testing
d) hammer testing
A tank has had a NPS 6 penetration installed in a floating roof after 20 years of service. Is the tank required to be hydrostatically tested after this action?
a) yes
b) no
c) only if the owner requests it
d) no, unless the inspector requests it
b) no
What is the standard method of determining the effectiveness of cathodic protection on a tank bottom?
a) tank to soil resistivity
b) tank to soil potential
c) tank to soil current
d) tank to soil corrosivity
b) tank to soil potential
To what extent should insulation be removed from an inservice tank during an external inspection?
a) 10% or the extent necessary to determine the condition of the exterior wall of the tank or roof
b) 20% or the extent necessary to determine the condition of the exterior wall of the tank or roof
c) 50% or the extent necessary to determine the condition of the exterior wall of the tank or roof
d) to the the extent necessary to determine the condition of the exterior wall of the tank or roof
d) to the the extent necessary to determine the condition of the exterior wall of the tank or roof
When constructing a new tank, who is responsible for the qualification of the welders that are assigned to the semiautomatic welding processes?
a) authorized inspector
b) owner/ operator
c) erection manufacturer
d) repair organization
c) erection manufacturer
