[Latest Questions] Latest API API-571 PDF Exam Study Materials Free Try

Hottest and most accurate API API-571 pdf exam study material are written according to the latest API-571 pdf real IT exams. All the API API-571 pdf exam practice questions and answers are revised by the http://www.passitdump.com/api-571.html skillful experts. 100% success and guarantee to pass API-571 exam test quickly and easily at the first attempt.

Question No : 1
_________ 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. Spheroidization
D. Brittle fracture
Answer: D

Question No : 2
Fatigue will not occur in carbon steel if stresses are below the: Latest API API-571 pdf exam questions and answers
A. Transition limit.
B. Endurance limit.
C. Hardening limit.
D. Speed limit.
Answer: B
Question No : 3
________ has been a major problem on coke drum shells.
A. Thermal fatigue
B. Stress cracking
C. Erosion
D. Temper embrittlement
Answer: A

Question No : 4
The “L” grade of stainless steels will sensitize if exposed more than several hours above _______ or long term above _____.
A. 1200º F, 800º F
B. 1000º, 600º F
C. 1000º F, 750º F
D. 1100º F, 800º F
Answer: C

Question No : 5
Once cracking from LME has occurred, grinding out the API-571 vce affected area ______ an acceptable fix.
A. Is
B. Is not
C. Can be
D. Can not be
Answer: B

Question No : 6
Ferritic stainless steels are usually not used in __________ applications.
A. Non-pressure boundary
B. Pressure boundary
C. High temperature
D. Low temperature
Answer: B

Question No : 7
In general, the resistance of carbon steel and other alloys to High temperature corrosion is determined by the ________ content of the material.
A. Molybdenum
B. Chromium
C. Carbon
D. All of the above
Answer: B

Question No : 8
Conditions favoring carburization include a high gas phase carbon activity and _______ oxygen potential.
A. Low
B. High
C. Negative
D. Positive
Answer: A

Question No : 9
It is generally accepted that stresses approaching _________ are required for SCC to occur so that API-571 dumps thermal stress relief is effective in preventing caustic SCC.
B. Yield
C. Creep range
D. Critical
Answer: B

Question No : 10
Low creep ductility is __________ severe in high tensile strength materials and welds.
A. More
B. Less
C. Usually
D. Not
Answer: A

Question No : 11
Many thermal fatigue cracks are filled with:
A. chlorides.
B. hydroslime.
C. oxides.
D. sulfides.
Answer: C

Question No : 12
Titanium Hydriding damage occurs primarily in sour water strippers and amine units in the overhead condensers, heat exchanger tubes and other titanium equipment operating above _________.
A. 300º F
B. 270º F
C. 210º F
D. 165º F
Answer: D

Question No : 13
Heat treatment can have a significant effect on the toughness and hence fatigue resistance of a metal. In general, ________ grained microstructures tend to perform better than _________ grained.
A. Fine, Course
B. Austenetic, martensitic
C. Course, Fine
D. Martensitic, austenetic
Answer: A

Question No : 14
____________ is a form of environmental cracking that can initiate on the API-571 exam 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.
A. Sulfide stress cracking
B. Hydrogen stress cracking
C. Caustic stress cracking
D. Hydrogen induced cracking
Answer: B

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Reference: http://www.api.org/products-and-services/individual-certification-programs/certifications/api571