[Sep 20, 2022] Free ICP Programs API-571 Exam Question
API-571 dumps & ICP Programs sure practice dumps
NEW QUESTION 272
The creep threshold temperature for carbon steel is ________.
- A. 426(o) C
- B. 371(o) C
- C. 315(o) C
- D. 538(o) C
Answer: B
NEW QUESTION 273
Phosphoric acid corrosion is usually found in ________ areas.
- A. Low velocity
- B. High velocity
- C. Low temperature
- D. High temperature
Answer: A
NEW QUESTION 274
_________ is the main concern during start-up, shutdown and/or hydro testing for equipment/piping operating at elevated temperatures. This event can also occur in an auto refrigeration event in units processing light hydrocarbons.
- A. Stress fracture
- B. Carburization
- C. Brittle fracture
- D. Spheroidization
Answer: C
NEW QUESTION 275
In HF service, carbon steel forms a protective _________ scale in dry concentrated acid. Loss of the protective scale through high velocities or turbulence will result in greatly accelerated corrosion rates.
- A. Iron sulfide
- B. Fluoride
- C. Iron oxide
- D. Chloride
Answer: B
NEW QUESTION 276
________ has been a major problem on coke drum shells.
- A. Stress cracking
- B. Erosion
- C. Temper embrittlement
- D. Thermal fatigue
Answer: D
NEW QUESTION 277
Which of the following is not a primary initiating point for thermal fatigue?
- A. Weld toes
- B. Notches
- C. Rounded pits
- D. Nozzle-to-shell welds
Answer: C
NEW QUESTION 278
Carbonate stress corrosion cracking is the term applied to surface breaking or cracks that occur adjacent to carbon steel welds under the combined action of ____________ and ___________ in carbonate containing systems.
- A. Tensile stress, corrosion
- B. Corrosion, velocity
- C. Temperature, stress
- D. Tensile stress, velocity
Answer: A
NEW QUESTION 279
Which of these materials are not susceptible to Spheroidization?
- A. 316 SS
- B. Both A and B
- C. Carbon steel
- D. 9Cr-1Mo
Answer: A
NEW QUESTION 280
Cooling water corrosion can result in many different forms of damage including general corrosion, pitting corrosion, ________, stress corrosion cracking and fouling.
- A. SOHIC
- B. All of the above
- C. HIC
- D. MIC
Answer: D
Explanation:
Explanation/Reference:
NEW QUESTION 281
Which of these materials are susceptible to creep damage?
- A. Stainless steel
- B. All of the above
- C. Carbon steel
- D. Low alloy steel
Answer: B
NEW QUESTION 282
In design and fabrication, it is advisable to avoid sharp changes in cross section, such as short radius fillets or undercut that can give rise to _________.
Long-seam welds are particularly susceptible to reheat cracking due to mismatch caused by fit up problems.
- A. All of the above
- B. Stress concentrations
- C. Circumferential stress
- D. Cracking
Answer: B
NEW QUESTION 283
Which of the following does not increases the likelihood of atmospheric corrosion?
- A. Increasing annual rainfalls
- B. Bird poop
- C. Locations where moisture is trapped
- D. Increasing operating pressures
- E. Increasing amounts of airborne contaminates
Answer: D
NEW QUESTION 284
________ usually occurs when a colder liquid contacts a warmer metal surface.
- A. Stress shock
- B. Thermal shock
- C. Stress cracking
- D. Thermal fatigue
Answer: B
NEW QUESTION 285
Corrosion of the anode may be significantly higher ________ to the connection to the cathode, depending on solution conductivity.
- A. Adjacent
- B. Parallel
- C. Diagonally
- D. Perpendicular
Answer: A
NEW QUESTION 286
SSC is a form of hydrogen stress cracking resulting from the absorption of atomic hydrogen that is produced by the ______ corrosion process on the metal surface.
- A. Sulfide
- B. HF
- C. HCl
- D. Wet H(2)S
Answer: A
NEW QUESTION 287
The creep threshold temperature for 1 1/4, 2 1/4, 5 and 9 Cr is ________.
- A. 1000º F
- B. 800º F
- C. 600º F
- D. 700º F
Answer: B
NEW QUESTION 288
The loss in strength from spheroidization (Softening) is usually accompanied by a(n) _________ in ductility, which allows for deformation at stress concentrations.
- A. Reduction
- B. Decrease
- C. Yield
- D. Increase
Answer: D
NEW QUESTION 289
Soils having high moisture content, high dissolved salt concentrations and high ________ are the most corrosive.
- A. Oxygen content
- B. All of the above
- C. Resistivity
- D. Acidity
Answer: D
NEW QUESTION 290
Thermal fatigue cracks usually:
- A. Initiate in the subsurface of the component.
- B. Grow very rapidly (at the speed of sound in the material).
- C. Are very tight and narrow.
- D. Initiate on the surface of the component.
Answer: D
NEW QUESTION 291
......
API API-571 Actual Questions and Braindumps: https://www.examprepaway.com/API/braindumps.API-571.ete.file.html
Pass API-571 Exam with Updated API-571 Exam Dumps PDF 2022: https://drive.google.com/open?id=1jyFYEccaxYdknuh43KND6FWXVIPCPrwa