API 510-CLOSED-6 1 Which of the following types of discontinuities is not normally detected by radiography? a. b. c. d.
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API 510-CLOSED-6 1
Which of the following types of discontinuities is not normally detected by radiography? a. b. c. d.
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API 510 ______________ be used as a substitute for the original Code of Construction of a pressure vessel before it is placed in service. a. b. c. d.
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Vessel engineer Owner-user Corrosion engineer NDE engineer
ASME, Section VIII, Division 1 is based on a safety factor equal to ? a. b. c. d.
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Better tensile strength Better toughness Better high temperature prosperities None of the above
Who establishes the inspection interval for thickness measurements and external visual inspections? a. b. c. d.
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Shall not Should May Shall
Compared to ASTM A 515 Gr. 60 plates, ASTM A 516 Gr. 60 plates have: a. b. c. d.
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Cracks Incomplete penetration Laminations Slag
4 3 3.5 2.5
Identify the incorrect statement from the following, if any: a. A welder who performs a procedure test is also qualified in that position. b. Supplementary essential variables become essential variables when impact testing is required. For procedure qualification , the test can be performed in any position as the position is not an c. essential variable for procedure qualification. d. None of the above is an incorrect statement.
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In plate specification A 516 Gr. 70 the letter "A" represents a. b. c. d.
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The symbol which indicates ASME code stamping for vessels manufactured to ASME Section VIII, Division 1 is? a. b. c. d.
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U1 U2 U None of the above.
What will be the mandatory edition and addenda of ASME Section VIII, Division 1 to be used as of 4 September, 2004? a. b. c. d.
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That the material is an ASME material (A for ASME). That the material is a ferrous material. That the material is non-ferrous material. None of the above.
2001 edition and 2002 addenda 2001 edition and 2003 addenda 2001 edition and 2004 addenda None of the above.
The term "E" used in the shell thickness formulas of ASME Section VIII, Division 1 represents a weld joint efficiency equal to 1 if: a. Longitudinal and circumferential welds are radiographed for their entire length. Longitudinal welds are radiographed for their entire length and circumferential welds are spot b. radiographed. c. Both welds are spot radiographed. d. A and B above
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A restoration work by weld-overlay was carried out on a corroded wall of a vessel and it can now be used as per the original design conditions. This activity will be termed as: a. b. c. d.
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Renewal of vessel Repair of vessel Alteration of vessel Re-rating of vessel
During Magnetic Particle (MP) inspection of a vessel, the size of the indication for a certain discontinuity was seen as 4 mm, but after the MP check and by using a magnifying glass it was seen to have an actual size of only 2.5 mm. If stipulated acceptance criteria for this type of discontinuity was 3 mm, your decision would be: a. b. c. d.
The size of the indication is larger than 3 mm. Reject. The size of the indication is small than 3 mm. Accept. Depends on the opinion of the examiner Depends on the procedure adopted for MP i.e. dry or wet particles
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The ASME code requires averaging of impact test values. How many specimens are required minimum? a. b. c. d.
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A stainless steel weld has a crack open to the surface. Which NDT method will reveal it most effectively? a. b. c. d.
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Liquid penetrant (PT) Magnetic Particle (MT) Radiography (RT) All of the above
The PQR document may be revised and re-submitted for acceptance: a. b. c. d.
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2 3 4 None of the above
1 0 Depends on the company policy. Depends on the third party inspectors decision.
Hot tapping is best described by which statement: It is a technique of preheating the vessel wall to a specified temperature and tapping it with a one a. pound rounded hammer for purpose of detecting wall thinning. b. It is a technique of providing a tapping connection while the system is in operation. c. It is a technique for fixing a on/off tap on drain nozzle to a pressure vessel. d.
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Which of the following represents grouping of weld metals in ASME Section IX? a. b. c. d.
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It is the act of preheating the component before use the tap and die for threading so that less effort is required during the operation process.
P-Numbers F-Numbers S-Numbers A-Numbers
The inspector should be stricter while carry out inspections on: a. Longitudinal joints
b. Circumferential joints c. Both type joint are equally as critical as per ASME Section VIII, Division 1. d. Depends on QA plan.
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Penetrant testing (PT) examination is used to detect the surface cracks in welds as well as in the base metal of plates. For proper detection: a. b. c. d.
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We should allow higher penetrant time on welds. We should allow higher penetrant time on plates. Penetrant time on welds and plates is the same. Depends on the type of penetrant used.
As per ASME Section VIII, Division 1 "Weld Joint category" refers to: a. b. c. d.
The type of weld i.e. Single V, Double V, U Type ect. Type of weld i.e. Full penetration, Partial penetration ect. Location of the weld i.e. Longitudinal, Circumferential, Nozzle attachment weld ect. Type of weld joint i.e. Butt weld joint, Fillet weld joint, Lap weld joint ect.