최신API Corrosion and Materials Professional - API-571무료샘플문제
Cracks formed by carbonate stress corrosion are best detected:
(What nondestructive examination (NDE) technique requires the least amount of surface preparation to locate wet H#S damage mechanisms?)
(What is the minimum pH value where chloride stress corrosion cracking begins to occur?)
(The signature mark of a mechanical fatigue failure is a "clam shell" type fingerprint:)
Short-term stress rupture is a/an:
Damage from oxidation is usually determined by:
Hydrogen stress cracking is normally found in:
What type of damage is affected by higher hydrogen partial pressures?
Which of the following is a contributing factor in caustic corrosion?
(A section of vacuum bottom outlet piping is being replaced because of naphthenic acid corrosion (NAC).
Which of the following potential replacement materials would be most resistant to NAC?)
Amine stress corrosion cracking is most likely to occur in what services?
In a wet H2S-type environment, what fluid material will significantly increase the probability of blistering?
Polythionic acid stress corrosion cracking (PTASCC) can be detected by:
How can temper embrittlement be prevented if a material contains critical levels of the appropriate impurity elements and is exposed in the embrittling temperature range?
(An equipment component made of 1-1/4 Cr-1/2 Mo steel that has lost ductility due to temper embrittlement would be susceptible to further damage by which of the following mechanisms?)