Free API API-571 Practice Test & Real Exam Questions

(The signature mark of a mechanical fatigue failure is a "clam shell" type fingerprint:)

At which of the following temperatures would the highest atmospheric corrosion rates be expected?

(Which of the following may be more susceptible to polythionic acid stress corrosion cracking?)

(Sulfidation is known to be accelerated by the presence of:)

(Deaerators that have not been postweld heat-treated are commonly subject to:)

Both sulfide stress corrosion cracking and stress-oriented hydrogen-induced cracking are most often found in:

The stream from a crude atmospheric overhead goes to the tube side of a shell-and-tube condenser with a temperature of 300°F (149°C) and a pressure of 10 psig (69 kPa). As the stream begins to condense water, its hydrochloric acid content lowers the water pH to about 4.0. Which of the following would be the best alloy selection for the tubes with cooling water on the shell side?

Steel hardness and strength are critical factors for what type of damage mechanism?

Metal dusting usually occurs in the operating temperature range of:

Amine corrosion is primarily caused by: