[Jun 22, 2025] API-571 PDF Questions and Testing Engine With 112 Questions
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The benefit in Obtaining the API-571 Exam Certification
- Advanced Corrosion & Materials Professional Certification provides practical experience to candidates from all the aspects to be a proficient worker in the organization.
- Advanced Corrosion & Materials Professional have the knowledge to use the tools to complete the task efficiently and cost effectively than the other non-certified professionals lack in doing so.
- Advanced Corrosion & Materials Professional certification has more useful and relevant networks that help them in setting career goals for themselves. Advanced Corrosion & Materials Professional networks provide them with the right career direction than non certified usually are unable to get.
- Advanced Corrosion & Materials Professional will be confident and stand different from others as their skills are more trained than non-certified professionals.
Who should take the API-571 exam
The API Corrosion and Materials API-571 Exam certification is an internationally-recognized validation that identifies persons who earn it as possessing skilled as Advanced Corrosion & Materials Professional Certification. If a candidate wants significant improvement in career growth needs enhanced knowledge, skills, and talents. The API Corrosion and Materials API-571 Exam certification provides proof of this advanced knowledge and skill. If a candidate has knowledge of associated technologies and skills that are required to pass API Corrosion and Materials API-571 Exam then he should take this exam.
API-571 Exam topics
Candidates must know the exam topics before they start of preparation. Because it will really help them in hitting the core. Our API-571 exam dumps will include the following topics:
- Understand refining industry damage mechanisms used in uniform of localized loss in thickness phenomena.
- Explore damage mechanisms on high temperature corrosion including oxidation, sulfidation, carburization and metal dusting.
- Determine general damage mechanisms on uniform or localized loss thickness and explain the various types of corrosion related to it.
NEW QUESTION # 20
_________ is the result of cyclic stress caused by variations in temperature.
- A. Thermal Fatigue
- B. Stress Corrosion Cracking
- C. Creep
- D. Cyclic Cracking
Answer: A
NEW QUESTION # 21
Which of the following are susceptible to thermal fatigue?
- A. SA-182 Gr B
- B. All of the above
- C. SA-53 Gr B
- D. SA-516-70
Answer: B
NEW QUESTION # 22
300 Series SS is susceptible to LME when it comes in contact with molten ________.
- A. Mercury
- B. Lead
- C. Zinc
- D. Cadmium
Answer: C
NEW QUESTION # 23
The presence of ________ in H2S streams increases the severity of high temperature sulfide corrosion at temperatures above about 500º F
- A. Hydrogen
- B. Amine
- C. Sulfides
- D. All of the above
Answer: A
NEW QUESTION # 24
Since all fuels contain some amount of sulfur, sulfuric and sulfurous acid __________ can occur if the metal temperature is below this temperature.
- A. Dew point corrosion
- B. All of the above
- C. Corrosion
- D. Pitting
Answer: A
NEW QUESTION # 25
________ usually occurs when a colder liquid contacts a warmer metal surface.
- A. Stress cracking
- B. Thermal shock
- C. Thermal fatigue
- D. Stress shock
Answer: B
NEW QUESTION # 26
Amine corrosion depends on the design, operating practices, the type of amine, amine concentration, temperature and _________.
- A. Velocity
- B. Pressure
- C. None of the above
- D. Stress
Answer: A
NEW QUESTION # 27
For some materials such as titanium, carbon steel and low alloy steel, the number of cycles to fatigue fracture decreases with ________ until an endurance limit is reached. Below this endurance limit, fatigue cracking will not occur, regardless of the number of cycles.
- A. Pressure decreases
- B. Stress endurance
- C. None of the above
- D. Temperature increases
Answer: B
NEW QUESTION # 28
For a specific material, HTHA is dependent on temperature, hydrogen partial pressure, time and _________.
- A. Pressure
- B. Velocity
- C. Alloy composition
- D. Stress
Answer: D
NEW QUESTION # 29
Time to failure by thermal fatigue is primarily affected by:
- A. Carbon content in material and number of cycles.
- B. Carbon content in material and operating temperature.
- C. Magnitude of stress and operating temperature.
- D. Magnitude of stress and number of cycles.
Answer: D
NEW QUESTION # 30
General or localized corrosion of carbon steels and other metals caused by dissolved salts, gases, organic compounds or microbiological activities is called ________.
- A. Flue Gas Corrosion
- B. Atmospheric Corrosion
- C. None of the Above
- D. Cooling Water Corrosion
- E. All of the Above
Answer: D
NEW QUESTION # 31
Alloys with increased amounts of _______ show improved resistance to naphthenic acid corrosion.
- A. Carbon
- B. Molybdenum
- C. Chromium
- D. Nickel
Answer: B
NEW QUESTION # 32
When connected to a more anodic material, titanium may suffer severe __________.
- A. Corrosion
- B. Stress
- C. Hydriding
- D. Notch toughness
Answer: C
NEW QUESTION # 33
The best method for finding damage from sigma phase embrittlement is:
- A. Ductility testing
- B. Metallographic testing
- C. Magnetic particle testing
- D. Hardness testing
Answer: B
Explanation:
As per API RP 571 on Sigma Phase Embrittlement:
"Sigma phase embrittlement occurs in stainless steels and nickel-based alloys due to the formation of a brittle intermetallic phase in the temperature range of 1050°F to 1650°F (565°C to 900°C)."
"This damage mechanism is not easily detected through surface or hardness testing and typically requires metallographic examination to confirm the presence of sigma phase in the microstructure." Metallographic testing allows clear identification of sigma phase particles and is thus the most reliable method, making option D correct.
NEW QUESTION # 34
If weld repairs are required, the effects of temper embrittlement can be temporarily reversed (de-embrittled) by heating at ______ for 2 hours per inch of thickness and rapidly cooling to room temperature.
- A. 1000(o) F
- B. 1200(o) F
- C. 1150(o) F
- D. 1250(o) F
Answer: C
NEW QUESTION # 35
Cracking can occur at low caustic levels if a concentrating mechanism is present. In such cases, caustic concentrations of ________ ppm are sufficient to cause cracking.
- A. 50-100
- B. 200-250
- C. 150-200
- D. 100-150
Answer: A
NEW QUESTION # 36
Carbonate cracking typically propagates _________ to the weld; the pattern of cracking observed on the surface is sometimes described as ________.
- A. Parallel, Spider web
- B. Transverse, Eyebrow
- C. Perpendicular, Stair step
- D. Diagonal, Half moon
Answer: A
NEW QUESTION # 37
Susceptibility to temper embrittlement is largely determined by the presence of the alloying elements manganese and _______.
- A. Moly
- B. Chromium
- C. Silicon
- D. None of the above
Answer: C
NEW QUESTION # 38
Dissimilar weld metal cracking forms at the toe of the weld in the heat affected zone of the ________ material.
- A. Ferritic
- B. Martensitic
- C. Austenitic
- D. Both B and C
Answer: A
NEW QUESTION # 39
Proper application of ________ will control but not eliminate microbes that cause MIC so that continued treatment is necessary.
- A. Biocides
- B. Ozone
- C. Caustic
- D. None of the above
Answer: A
NEW QUESTION # 40
The best way to prevent failures by atmospheric corrosion is to:
- A. Shoot all birds that cross the plant fence.
- B. Install and maintain appropriate coatings.
- C. Have an aggressive inspection program.
- D. Build new petrochemical facilities in a dry desert.
- E. Reduce airborne particulates.
Answer: B
NEW QUESTION # 41
______ is most likely found in hard welds and heat affected zones and in high strength components.
- A. HIC
- B. SSC
- C. SOHIC
- D. Carburization
Answer: B
NEW QUESTION # 42
A steam actuated soot blower has condensate in the first steam exiting the soot blower. What type of damage can be expected to be found when the furnace is brought down for maintenance and inspection?
- A. Steam blanketing
- B. Thermal fatigue
- C. Creep
- D. Stress rupture
Answer: B
NEW QUESTION # 43
____________ is often found in piping and equipment that handles caustic, including H2S and mercaptan removal units, as well as equipment that uses caustic for neutralization in sulfuric acid and HF acid units.
- A. Sulfide corrosion
- B. Hydrogen cracking
- C. Carburization
- D. Caustic embrittlement
Answer: D
NEW QUESTION # 44
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