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Welding and Materials Science Quiz

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Questions and Answers

What is a vessel considered during a process outage?

Out of service (correct)

Under repair

In maintenance

Major repair

When should a Management of Change (MOC) work process be completed?

Before either physical or process changes (correct)

Before personnel, physical or process changes

Before physical changes

Before process changes

What is the definition of MAWP?

Maximum pressure at the vessel's top

Maximum pressure at the vessel's mid-point

Maximum pressure at the vessel's bottom

Maximum pressure anywhere on the vessel (correct)

What is internal distributor piping considered as?

A non-pressure boundary vessel component Signup and view all the answers

What is a vessel called if it was built to a recognized standard but has lost its nameplate or stamping?

A non-code vessel Signup and view all the answers

What type of work is defined as removing and replacing a major part of the pressure boundary?

Major repair Signup and view all the answers

What are the two primary factors of Risk in an RBI assessment?

Consequence of Failure & Probability of Failure Signup and view all the answers

What is the primary difference between plate lining and strip lining?

Plate lining is welded inside the vessel, strip lining is welded outside the vessel. Signup and view all the answers

What is the term for physical activities conducted to check conformance with specifications?

Quality Control Signup and view all the answers

Who issues a 'R-Stamp' used for repairs?

A Pressure Vessel Engineer Signup and view all the answers

What is the condition in which temper embrittlement occurs in certain materials?

When the operation temperature is within 30 °F of the vessel's MDMT Signup and view all the answers

What is the typical rating of an unfired steam boiler drum?

12 psig at 400°F Signup and view all the answers

What is the term used to describe the base metal whose mechanical properties or microstructure has been altered by welding or thermal cutting?

Heat Affected Zone Signup and view all the answers

What is the purpose of an Examination Point during repairs and alterations?

To stop the work and perform an examination Signup and view all the answers

Which of the following is correct concerning Examination Points?

These are locations where work is stopped to perform an examination Signup and view all the answers

What is an imperfection?

A flaw that may or may not exceed acceptance standards Signup and view all the answers

What is the term used to describe a defect?

Any discontinuity found that may or may not exceed acceptance standards Signup and view all the answers