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API API-571 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Damage Mechanisms: This domain explains various corrosion and damage mechanisms, including their characteristics, affected materials, causes, and visual appearance. It also covers where damage occurs, along with methods for prevention, mitigation, inspection, and monitoring.
Topic 2
  • Terms, Definitions, and Acronyms: This domain covers the key terminology, standard definitions, and commonly used acronyms related to corrosion and materials. It ensures a clear understanding of technical language used throughout the API-571 body of knowledge.

Reference: http://www.api.org/products-and-services/individual-certification-programs/certifications/api571#tab_exam-info

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What is the duration of the API-571 Exam

  • Length of Examination: 3.25 hours
  • Number of Questions: 70
  • Format: Multiple choices, multiple answers

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API Corrosion and Materials Professional Sample Questions:

One way to prevent oxide scale formation on alloy steel is to increase the:

  • A. Molybdenum content of the steel to 6%
  • B. Nickel content of the steel
  • C. Carbon equivalent of the alloy
  • D. Chromium content of the steel
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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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?

  • A. 316 Stainless Steel
  • B. 9 Cr-1 Mo Steel
  • C. Titanium
  • D. 410 Stainless Steel
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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The primary cause of ammonium chloride corrosion is the formation of salts:

  • A. That may precipitate from high-temperature streams as they are cooled
  • B. During water washing operations in streams containing traces of chlorides
  • C. That may deposit when water evaporates to dry-out conditions as streams are heated
  • D. When steam is injected into streams containing traces of chlorides
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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The presence of which additional substance(s) will accelerate the corrosion of steel in the presence of sulfur compounds at high temperature?

  • A. Hydrogen
  • B. Oxygen
  • C. Chlorides
  • D. Sulfates
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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Refer to the following table:
Corroded End - Anodic (More Active)
Magnesium
Magnesium alloys
Zinc
Aluminum
Aluminum alloys
Steel
Cast iron
Type 410 SS (active state)
Ni-Resist
Type 304 SS (active state)
Type 316 SS (active state)
Lead
Tin
Nickel
Brass
Copper
Bronze
Copper-Nickel
Monel
Nickel (passive state)
Type 410 SS (passive state)
Type 304 SS (passive state)
Type 316 SS (passive state)
Titanium
Graphite
Gold
Platinum
Protected End - Cathodic (More Noble)
Which of the following metal combinations is most likely to experience galvanic corrosion in brackish water or seawater?

  • A. Cast iron coupled to Ni-resist
  • B. Aluminum coupled to steel
  • C. Brass coupled to nickel
  • D. Steel coupled to nickel
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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