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Vce API-571 Exam | Exam Questions API-571 Vce

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What is the duration of the API-571 Exam

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

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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 Corrosion and Materials Professional Sample Questions (Q40-Q45):

NEW QUESTION # 40
Amine cracking is a form of ________ stress corrosion cracking.

A. Caustic
B. Alkaline
C. Polythionic
D. Hydrogen

Answer: B

NEW QUESTION # 41
Inspecting for high-cycle fatigue can be difficult since:

A. Predicting the location of cracking is difficult.
B. The cracks are extremely tight.
C. Often the equipment is vibrating making non-destructive evaluations difficult.
D. Once the crack begins, only a few cycles are needed for the crack to lead to failure.

Answer: D

NEW QUESTION # 42
With sour water corrosion, corrosion increases with __________ NH4HS concentration and __________ velocity.

A. Decreasing, Increasing
B. Increasing, Decreasing
C. Increasing, Increasing
D. Decreasing, Decreasing

Answer: C

NEW QUESTION # 43
Which of the following generally manifests itself as a subsurface damage mechanism?

A. Sulfide Stress Corrosion Cracking (SCC)
B. Caustic Cracking
C. Stress-Oriented Hydrogen-Induced Cracking (SOHIC)
D. Amine Stress Corrosion Cracking

Answer: C

Explanation:
As defined in API RP 571, under Hydrogen Blistering and HIC/SOHIC:
"SOHIC typically manifests as subsurface stepwise cracking, generally oriented perpendicular to the direction of stress."
"This mechanism initiates below the surface, typically in weld heat-affected zones, and requires metallographic or advanced ultrasonic methods to detect." By contrast, SSC, caustic cracking, and amine SCC are primarily surface-initiated, stress-related cracking mechanisms.
Thus, SOHIC is the subsurface mechanism in this list, making option D correct.

NEW QUESTION # 44
If wet electrodes or high moisture content flux weld electrodes are used to weld carbon steel, hydrogen can be charged into the steel resulting in _________.

A. Delayed cracking
B. All of the above
C. Loss of ductility
D. Reduced tensile strength

Answer: A

NEW QUESTION # 45
......

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