Corrosion and Materials Professional: API-571 Exam
"Corrosion and Materials Professional", also known as API-571 exam, is a API Certification. With the complete collection of questions and answers, PrepPDF has assembled to take you through 151 Q&As to your API-571 Exam preparation. In the API-571 exam resources, you will cover every field and category in ICP Programs Certification helping to ready you for your successful API Certification.
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- Exam Code: API-571
- Exam Name: Corrosion and Materials Professional
- Certification Provider: API
- Corresponding Certification: ICP Programs
- Updated: Nov 13, 2026
- No. of Questions: 151 Questions & Answers with Testing Engine
- Download Limit: Unlimited
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How to book the API-571 Exam
These are following steps for registering the API-571 exam. Step 1: Signup/Login to ICP Portal Step 2: Submit an application Step 3: After your application is approved, Select Date, time and confirm with payment method
What is the duration of the API-571 Exam
- Length of Examination: 3.25 hours
- Format: Multiple choices, multiple answers
- Number of Questions: 70
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API API-571 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Corrosion Mechanisms | - Aqueous corrosion
|
| Refining Process-Specific Damage | - Hydroprocessing units
|
| Metallurgical Damage Mechanisms | - High-temperature degradation
|
| General Knowledge of Damage Mechanisms | - Overview of degradation in refining environments
|
| Environmentally Assisted Cracking | - Hydrogen-related damage
|
| Materials Selection and Mitigation | - Corrosion control strategies
|
API Corrosion and Materials Professional Sample Questions:
300 series austenitic stainless steels susceptible to polythionic acid stress corrosion cracking (PTA SCC) can become sensitized when heated in the range of:
- A. 400°F to 675°F (204°C to 357°C)
- B. 1200°F to 1650°F (622°C to 900°C)
- C. 750°F to 1500°F (400°C to 815°C)
- D. 1650°F to 1725°F (899°C to 941°C)
Correct Answer: C 🗳️
Explanation: Only visible for PrepPDF members. You can sign-up / login (it's free).
At which of the following temperatures would the highest atmospheric corrosion rates be expected?
- A. 200°F (93°C)
- B. 175°F (79°C)
- C. 275°F (135°C)
- D. 250°F (120°C)
Correct Answer: B 🗳️
Explanation: Only visible for PrepPDF members. You can sign-up / login (it's free).
(Which of the following may be more susceptible to polythionic acid stress corrosion cracking?)
- A. Monel 400
- B. Type 321 stainless steel
- C. SA-516 Grade 70 carbon steel
- D. Type 304 stainless steel
Correct Answer: D 🗳️
Explanation: Only visible for PrepPDF members. You can sign-up / login (it's free).
Convection section soot blowers that have steam supplies without a steam trap can cause:
- A. carbonic acid corrosion.
- B. CO2 corrosion.
- C. condensate corrosion.
- D. thermal fatigue.
Correct Answer: C 🗳️
Explanation: Only visible for PrepPDF members. You can sign-up / login (it's free).
The likelihood of brittle fracture is best lessened by:
- A. Using thicker construction materials to lower the resulting stress
- B. Postweld heat treatment (PWHT)
- C. Frequent inspection of the piping or equipment involved
- D. Using carbon or low-alloy steels
Correct Answer: B 🗳️
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