Free API API-571 Exam Questions

Sour water corrosion in _________ containing environments may be accompanied by carbonate SCC. 

With ammonia stress corrosion cracking weld hardness should not exceed _______ BHN. 

Creep damage is found in high temperature equipment operating above the ________. Fired heater tubes and components, Catalytic reactors, FCC reactors and FCC fractionator and regenerator internals all operate in or near this.

Which of the following materials is not susceptible to high temperature hydrogen attack? 

Dissimilar weld metal cracking occurs because the coefficients of thermal expansion between ferritic steels and 300 Series stainless steels differ by ________ or more.