Section 3 - Defenitions Flashcards
Which of the following is considered a vessel alteration?
A. Addition of non-reinforced nozzle
B. Weld build up in a locally corroded area
C. Replacement of a hemi-spherical head with a tori-spherical head.
D. Addition of Fillet weld patch
C. Replacement of a hemi-spherical head with a tori-spherical head.
An alteration on a vessel is defined as ?
A physical change with design implications
An 8 NPS nozzle is going to be added to a 2-to-1 ellipsoidal vessel head. The vessel is rated for 350 psig at 500°F. The vessel has inside diameter of 72”. The largest existing nozzle on the vessel is 18 NPS. Which of the following is true?
A. This work will be considered an alteration
B. The root pass on the welds must be checked with either MT or PT
C. The vessel must be hydrotest after the nozzles are completed
D. This must be authorized by the inspector in approved by the engineer.
D. This must be authorized by the inspector in approved by the engineer.
A 14 NPS nozzle is going to be added to a vessel shell. The vessel is rated for 100 psig at 650°F. And has an existing 10 NPS nozzle. Which of the following is true?
A. This work is considered an alteration
B. This work is considered a repair
C. The shell to nozzle weld must be radiographed
D. This work must be authorize only buy the API 510 inspector
A. This work is considered an alteration
Which of the following inspection organization is NOT considered an acceptable API 510 authorize inspection agency?
A. Holder of an appropriate ASME code symbol
B. Insurance company that writes pressure vessel insurance
C. The owner/user
D. The jurisdiction
A. Holder of an appropriate ASME code symbol
Which of the following is considered an API 510 authorized inspection agency?
A. The owner/users operating department
B. The inspection organization of the jurisdiction
C. An NDE contract organization
D. The inspection department of a vessel manufacture
B. The inspection organization of the jurisdiction
A CML is ?
Either a small spot on a vessel/nozzle or a plane through a nozzle section.
Fatigue damage comes from?
Cyclic loading
Which of the following does NOT contribute to fatigue damage?
A. Cyclic mechanical loadings
B. Cyclic platform loadings
C. Cyclic pressure loadings
D. Cyclic temperature loadings
B. Cyclic platform loadings
A defect is an?
Imperfection that does exceed the acceptance criteria.
What is the maximum diameter of an examination point?
3”
What is the term used to describe base metal whose mechanical properties or microstructure has been Altered by welding or thermal cutting?
Heat effective zone.
And imperfection is a?
Flaw that may or may not exceed the acceptance criteria.
During a process outage, a vessel is considered?
A. In-service
B. Out of service
C. Out of service but still active
D. To be non-corrosive
A. In-service
Using a document to work process and risk assessment to Lansing and interval beyond it’s due date is called a?
Deferral
Established limits for process variables that affect equipment integrity are called?
Integrity operating windows (IOWs).
Work that removes and replaces a major part of the pressure boundary (not including nozzles)is called a?
Major repair
Hey management of change (MOC)work process should be completed prior to?
A. Physical changes
B. Process changes
C. Either physical or process changes
D. Either personnel, physical or process changes
C. Either physical or process changes
MAWP is defined as the maximum pressure?
At the top of the vessel
MAT is defined as?
Minimum allowed temperature
Internal distributor piping is?
A. Consider a non-pressure boundary vessel component.
B. Consider a pressure boundary vessel component.
C. Design to the vessel construction code.
D. Design to a pipe in construction code.
A. Consider a non-pressure boundary vessel component.
Which of the following is NOT correct concerning plate lining?
A. Lining is installed on the inside of the vessel
B. Lining can be plate or weld build up
C. Lining is welded to the Shell
D. Usually the lining is a more corrosive resistant material than the shell
B. Lining can be plate or weld build up
Which of the following equipment types is covered by a API 510?
A. Knocked out drum rated at 12 PSIG at 400°F
B. Tubular heater
C. Unfired steam boiler
D. A 36” expansion joints
C. Unfired steam boiler
A pressure vessel engineer must:
A. Have a list of experts to call for specific situations.
B. Know the answer to every question posed by an inspector.
C. Be directly employed by the owner/user.
D. Have to obtain professional engineer status.
A. Have a list of experts to call for specific situations.
The physical activities that are conducted to check conformance with specifications are called?
Quality control
A repair on a vessel is defined as?
The work necessary to restore a vessel to a suitable safe condition
A vessels hemi-spherical head has corroded is going to be replaced in-kind at the next outage. The vessel is rated for 150 psig at 700°F. The vessel has 60” ID. which of the following is true?
A. This work is considered an alteration
B. This work is considered a repair
C. This work is considered a rerate
D. This work must be done in accordance with API 2201
B. This work is considered a repair
Which of the following is NOT considered an acceptable API 510 repair organization for vessels?
A. A contract company that is acceptable to the owner/user
B. The governing Jurisdiction for the Location of the pressure vessel
C. The owner/user that owns the pressure vessel
D. A holder of a valid NBICR “R” stamp
B. The governing Jurisdiction for the Location of the pressure vessel
Which of the following is not considered a vessel rerate ?
A. Decrease the MDMT
B. Increase the design pressure
C. Increase the design temperature
D. Increase the fluid viscosity
D. Increase the fluid viscosity
In a RBI assessment, the two primary factors of risk are the:
Consequence of failure and probability of failure
What is the difference between play lining in stripped lining?
Plate lining is wider than strip lining
Temper embrittlement occurs in certain materials when ?
The process temperatures exceed 650°F
Low chrome materials are subject to temper embrittlement. These materials are?
A. Brittle when new
B. Become brittle due to welding
C. Brittle at temperatures above 650°F
D. Brittle at low temperatures due to metallurgical changes that occurred during high temperature operation.
D. Brittle at low temperatures due to metallurgical changes that occurred during high temperature operation.
A pressure test use after maintenance work to assure that the equipment is league free It’s called ?
Tightness test
