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API-571 PDF Practice Q&A's
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- Total Questions: 151
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Certification Path
The API Corrosion and Materials certification path includes only one API-571 certification exam.
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The benefit in Obtaining the API-571 Exam Certification
- Advanced Corrosion & Materials Professional Certifications provide opportunities to get a job easily in which they are interested in instead of wasting years and ending without getting any experience.
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- Advanced Corrosion & Materials Professional Certification is distinguished among competitors. Advanced Corrosion & Materials Professional certification can give them an edge at that time easily when candidates appear for a job interview employers seek to notify something which differentiates the individual to another.
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API API-571 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: High-Temperature Corrosion and Degradation | 15% | - Graphitization - Metal Dusting - Carburization - Decarburization |
| Topic 2: Uniform or Localized Loss of Thickness | 25% | - Ammonium Bisulfide Corrosion - Corrosion Under Insulation (CUI) - Hydrochloric Acid Corrosion - Oxidation and Scaling - Sulfidation |
| Topic 3: Mechanical and Metallurgical Failure Mechanisms | 15% | - Brittle Fracture - Mechanical Fatigue - Creep and Stress Rupture - Thermal Fatigue |
| Topic 4: Environmentally Assisted Cracking | 25% | - Hydrogen Embrittlement - Sulfide Stress Cracking - Chloride Stress Corrosion Cracking - Caustic Stress Corrosion Cracking |
| Topic 5: Other Damage Mechanisms | 15% | - Liquid Metal Embrittlement - Erosion and Erosion-Corrosion - Microbiologically Influenced Corrosion - Cavitation Damage |
| Topic 6: Terms, Definitions, and Acronyms | 5% |
API Corrosion and Materials Professional Sample Questions:
(Caustic stress corrosion cracking can be effectively prevented by:)
- A. The use of 300 series stainless steels
- B. Limiting metal temperatures to less than 150 °F (65 °C)
- C. The use of a stress-relieving treatment
- D. Limiting caustic concentration to less than 100 ppm
Correct Answer: C 🗳️
Explanation: Only visible for PrepAwayExam members. You can sign-up / login (it's free).
Both sulfide stress corrosion cracking and stress-oriented hydrogen-induced cracking are most often found in:
- A. Hardened steels.
- B. Steel weldments.
- C. Areas with temperatures above 300°F (149°C).
- D. Areas where there is significant hydrogen blistering.
Correct Answer: A 🗳️
Explanation: Only visible for PrepAwayExam members. You can sign-up / login (it's free).
Polythionic acid stress corrosion cracking is:
- A. Identified by transgranular cracking on the process side of equipment and piping.
- B. Typically localized and may not be evident until a leak appears.
- C. Rarely found in process furnaces.
- D. Found only in low carbon grades of austenitic stainless steel.
Correct Answer: B 🗳️
Explanation: Only visible for PrepAwayExam members. You can sign-up / login (it's free).
In a naphthenic acid corrosive (NAC) environment, what is the effect of sulfur?
- A. No effect
- B. Corrosion accelerator
- C. Inhibition
- D. Sulfide cracking
Correct Answer: C 🗳️
Explanation: Only visible for PrepAwayExam members. You can sign-up / login (it's free).
Which of the following is most susceptible to chloride stress corrosion cracking?
- A. Non-postweld heat-treated carbon steel
- B. Non-stress-relieved 304 stainless steel
- C. Inadequately heat-treated 1.25 Cr-0.5 Mo low-alloy steel
- D. Non-stress-relieved admiralty brass U-bends
Correct Answer: B 🗳️
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