Study Guide Section 5- Inspection Examination and Testing Practices

When developing a vessels inspection plan, who should help, when needed, to identify specific damage mechanisms and their locations

During risk assessment, which of the following is not a significant factor in the probability of failure?
A) Expected damage mechanisms
B) Quality of the inspection program
C) Amount of process fluid
D) Quality of the maintenance program

During an RBI assessment of a pressure vessel, what are the two biggest factors of Consequence of Failure?

Which of the following mechanisms creates either general or localized corrosion?
A) Naphthenic Acid
B) Temper Embrittlement
C) HTHA
D) Graphitization

Which damage mechanisms created sub surface cracking?

Which damage mechanisms creates micro-fissuring which leads to macro-cracking?

Which of the following vessels is most likely to be affected by thermal fatigue?
A) Distillation column
B) Coke drum
C) Overhead accumulator
D) Knockout drum

Deviations from an inspection plan should be approved by the

On stream inspections

A portion of the soil around a buried vessel may be excavated to allow thickness measures of vessel to be taken. When excavating, care must be given  so that

CUI is an inspection concern for insulated duplex stainless steel vessels that operate between

Which of the following is not a most susceptible area for CUI damage on an insulated vessel?
A) Below stiffening rings
B) Nozzles
C) Bottom heads
D) Ladder Clips

Which type of insulation is most likely to absorb and hold water?

Which of the following conditions would justify fewer CML's on a vessel?
A) Uniform corrosion is expected
B) Localize corrosion is expected
C) Vessel contains propane
D)Corrosion rate is less than 0.010 ipy

The NDE method called Alternating Current Flux Leakage is useful in finding

What is the preferred exam technique for determining the vessel wall thickness of a 60" I.D. vessel that has localized thinning

What is a good exam technique for determining the nozzle wall thickness of an insulated 6 NPS nozzle that has localized thinning

A pressure test is normally conducted after all

A hydro test is performed on a vessel with austenitic SS cladding. What is the max allowed water temp

NDE is substituted for a pressure test after a major repair on an in-service vessel. Who must approve this substitution?

A leaking flange was repaired by a leak sealing company that pumped sealant in the gasket area. Later the flange leaks again. What should be done?