Free API API-571 Exam Questions
Absolute Free API-571 Exam Practice for Comprehensive Preparation
-
API API-571 Exam Questions
-
Provided By: API
- Exam: Corrosion and Materials Professional
- Certification: Individual Certification Programs
-
Total Questions: 454
-
Updated On: Jan 14, 2026
-
Rated: 4.9 |
-
Online Users: 908
-
Question 1
-
____________ is a form of environmental cracking that can initiate on the surface of high
strength low alloy steels and carbon steels with highly localized zones of high hardness in
the weld metal and HAZ as a result of exposure to aqueous HF acid service.
Answer: B
-
____________ is a form of environmental cracking that can initiate on the surface of high
strength low alloy steels and carbon steels with highly localized zones of high hardness in
the weld metal and HAZ as a result of exposure to aqueous HF acid service.
-
Question 2
-
A 5Cr-1Mo piping system in the hydrogen unit shows significant internal wall loss after 2
years in service due to CO² corrosion. Which material would be best suited to use to install
a new pipe system?
Answer: D
-
A 5Cr-1Mo piping system in the hydrogen unit shows significant internal wall loss after 2
years in service due to CO² corrosion. Which material would be best suited to use to install
a new pipe system?
-
Question 3
-
Soil corrosion appears as external thinning with localized losses due to _________.
Answer: B
-
Soil corrosion appears as external thinning with localized losses due to _________.
-
Question 4
-
What is the chemical symbol for butane of butylenes?
Answer: C
-
What is the chemical symbol for butane of butylenes?
-
Question 5
-
Which of the following materials is not susceptible to high temperature hydrogen attack?
Answer: D
-
Which of the following materials is not susceptible to high temperature hydrogen attack?