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Free Corrosion and Materials Professional Practice Questions

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Last Update 9 months ago
Total Questions : 149

Start with our free API-571 practice questions, carefully crafted to mirror the domains, phrasing, and difficulty of the real ICP Programs exam. Each API-571 exam question comes with a detailed rationale that explains not just which answer is correct but why the others fall short. That's how concepts stick. Use the free set to benchmark yourself: identify your API weak domains, see where you're losing marks, and build a focused study plan in minutes.

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Question # 41

Sigma phase embrittlement can occur in which of the following piping materials operating at temperatures of 1000°F to 1750°F (538°C to 954°C)?

Options:

A.  

300 series stainless steel

B.  

400 series stainless steel (12Cr)

C.  

Monel 400

D.  

5% chrome

Discussion 0
Question # 42

Generally, to minimize corrosion of carbon steel in hydrofluoric acid service, residual elements (Cr, Ni, Cu) should be less than:

Options:

A.  

0.15 wt.%

B.  

0.18 wt.%

C.  

0.25 wt.%

D.  

0.35 wt.%

Discussion 0
Question # 43

Which of the following can increase the corrosion rate of carbon steel via hydrofluoric (HF) acid corrosion?

Options:

A.  

High nitrogen content in process

B.  

Oxygen contamination

C.  

HF acid concentration above 98%

D.  

Weld hardness above 200 BHN

Discussion 0
Question # 44

Damage from oxidation is usually determined by:

Options:

A.  

Metallographic examination

B.  

Ultrasonic thickness measurements

C.  

Hardness testing

D.  

Hammer testing

Discussion 0

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