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API 570 - Open Book - Practice Exam 2024: Q’s And A’s
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API 570 - Open Book - Practice Exam 2024: Q’s And A’sA Hydrotest is conducted on an underground line as a substitute for the
external inspection. The test pressure is 200 Psig. At the end of the test, the
pressure must be at least - API 570 9.8.6 Right Ans - 190 Psig.
Determine the maximum allowed pressure for a Class 300 flange that has a
design temperature of 950 °F. The flange material is ASTM A217 Gr. C12 -
B16.5 Table 1.1-1 Right Ans - 375 Psig.
An 8 NPS pipe is being replaced with A106 gr. B material. The pipe retirement
thickness (Tmin) is 0.218" and the corrosion allowance is 0.125". what is the
minimum thickness of pipe that could be ordered after adjusting for mill-
tolerance? - API 574: 4.1.1 Right Ans - 0.392"
A welder is being qualified by RT on a 0.600" plate using the SMAW process.
What is the maximum allowed length of an individual elongated slag inclusion
for this qualifying test? - ASME Sect. IX - QW-191.1.2.2(a)(2)(b) Right Ans -
0.200"
Protection in a boiler from Boiler Feed Water Corrosion is accomplished by: -
API 571: 3.9.3.b Right Ans - Maintaining a protective corrosion layer of
magnetite (Fe3O4).
A liquid penetrant procedure must be qualified when performing the
examination: - ASME Sect. V - T-653 Right Ans - On Materials below 40 °F
When qualifying a SMAW weld procedure, if the "A-Number" on the PQR is an
A-2, what "A-Number" must be on the WPS? - ASME Sect. IX - Table QW-253 &
QW-404.5 Right Ans - A-1 or A-2
When welding pipe, peening is prohibited on: ASME B31.3: - 328.5.1(d)
Right Ans - The Root and Final Passes
What is the diameter of the bolts that are used for a 6 NPS class 600 Flange -
ASME B16.5: - Table 15C Right Ans - 1.00 Inch
, During the evaluation of a radiograph, the density at the IQI is 3.0. What is the
minimum density allowed on this radiograph in the weld? - ASME Sect V: T-
282.2(a)(1) Right Ans - 2.55
Which materials are generally Not susceptible to Acidic Sour Water
Corrosion? This may have more than one correct answer. Please select all
answers that apply - API 571: 3.58.2.a&b Right Ans - Copper, Nickel,
Stainless Alloys
For Class 2 piping, a petrochemical plant should consider performing CUI
inspections at: API 570: Table 2 (pg. 48) Right Ans - 33% of the non-
damaged areas.
The set pressure for a relief device protecting piping systems shall be set:
ASME B31.3 - 322.6.3(b) Right Ans - In accordance with the rules of ASME
B&PV Section VIII.
When performing a WFMPT (Wet Fluorescent Magnetic Particle Testing)
examination, prior to the examination, the examiner shall be in a darkened
area for. ASME Sect V. - T-777.2(b) Right Ans - 5 Minutes
What is the maximum allowed hydrotest pressure for piping with class 300
flanges that are made of ASTM 182 Gr. F316 Material? The Design
Temperature is 600 °F - ASME B16.5: 2.6, Tables 1.1-1 & 2-2.2c Right Ans -
1100 Psig.
What is the required preheat temperature for an A106 Gr. B pipe with carbon
content less than 0.2% and has a wall thickness of 0.500"? - ASME B31.3:
Table 330.1.1 Right Ans - 50 °F
Atmospheric corrosion becomes less of an issue at temperatures above: - API
571 - 3.8.3.f Right Ans - 250 °F
Which of the following is an essential variable when qualifying a welder using
the SMAW process? - ASME Sect. IX - Table QW-416 or Table QW-353 Right
Ans - Deletion of backing
Which document provides information on Integrity Operating windows? - API
570: 2 Right Ans - API 584
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