API 510 Chapter 10

API 510 Chapter 10 – ASME VIII Welding and NDE

Take a Free API 510 Exam Chapter 10 Practice test with Latest ASME VIII Welding and NDE Question and Answers

Q1. ASME VIII section UW-11 (a)
Which of the following may not require full RT?

(a) Some butt welds in the shell of vessels containing lethal substances

(b) Some butt welds in the head of vessels containing lethal substances

(d) Category B or C butt welds in a non-lethal vessel

Q2. ASME VIII section UW-11 (a)
‘Full RT’ under ASME VIII means a vessel must have:

(a) Radiography applied to all welds including fillets

(b) 100 % of its welds radiographed

(d) All welds exceeding NPS 10 or 11 8 in (29 mm) radiographed

Q3. ASME VIII section UW-11(a)
A vessel is manufactured from P4 Group 2 material. It has a shell thickness of 18 mm and is used to contain lethal substances. What RT is required for a shell-to-shell circumferential butt weld?

(a) Spot RT

(b) No RT

(d) Any of the above can be used

Q4. ASME VIII section UW-11 (a)
A vessel is manufactured from P1 Group 2 material. It has a shell thickness of 3/4 in (19 mm) and does not contain a lethal substance. What RT is required for a shell longitudinal butt weld?

(a) Spot RT

(b) No RT

(d) Any of the above can be used

Q5. ASME VIII section UW-11 (a)(6) and UW-11 (d)
A 2 in (50 mm) thick P1 Group 1 material is welded using the Electrogas welding process to give a full-penetration groove weld in a vessel in non-lethal service. What are the NDE requirements?

(a) It must have full RT and then UT after PWHT

(b) It must have full or spot RT

(d) Either (a) or (c) is acceptable

10.8 ASME VIII section UW-16 familiarization questions (set 2)
Q1. ASME VIII section UW-16 (c) and sketches (a), (b).Necks attached by a full penetration weld
A nozzle is fitted abutting (i.e. set-on) the vessel wall. What is an acceptable method of attaching it?

(a) With a full penetration groove weld through the nozzle wall

(b) With a full penetration groove weld through the vessel wall

(d) Both (a) and (c) are acceptable

Q2. ASME VIII section UW-16 (c)
By what means can reinforcement be added to an opening in a pressure vessel?

(a) By integral reinforcement such as forged inserts

(b) By using separate plates (compensation pads)

(d) All of the above are valid methods

Q3. ASME VIII section UW-16 (c) figure 16.1(a)
A vessel is manufactured from P1 Grade 2 material. It has a shell thickness of 18 mm and is used to contain lethal substances. A set-on (abutting) nozzle of 12 mm thickness is attached using a category D full penetration weld with a reinforcing fillet.

What is the minimum required throat thickness of the reinforcing fillet weld?

(a) 12 mm

(b) 8.4 mm

(d) 12.6 mm

Q4. ASME VIII section UW-16 (c)(2)(c)
A vessel has a shell thickness of 3/4 in (19 mm). A set-on (abutting) nozzle of 1/2 in (13 mm) thickness is attached using a category D full penetration weld. A reinforcing plate of 1/4 in (6 mm) is required.

What welds will be required to attach the reinforcing plate to the nozzle?

(a) A full penetration weld plus a fillet with a 4.2 mm throat

(b) A full penetration weld plus a fillet with a 6 mm throat

(d) A full penetration weld plus a fillet with a 3 mm throat

10.

Q5. ASME VIII section UW-16 (d)(1)
A nozzle of NPS 10 (DN 250) is inserted through a vessel wall and protrudes into the vessel by an amount equal to the nozzle thickness. The nozzle thickness is one-half of the shell thickness.
Which of the following weld combinations are acceptable to attach the nozzle?

(a) Partial penetration groove or fillet weld on inside and outside face

(b) Partial penetration groove with reinforcing fillet on the outside face

(d) Any of the above is acceptable

11.

10.10 ASME VIII section UW-51/52 familiarization Questions (Set 3)
Q1. ASME VIII section UW-51 (a)(4)
In ASME VIII Division 1 the final acceptance of the quality of a radiograph will be based on the?

(a) The geometric unsharpness of the image

(b) The ability to see the specified hole or designated wire of the IQI

(d) The film speed

12.

Q2. ASME VIII section UW-51 (a)(1)
When can a manufacturer destroy the radiographs relating to a vessel in lethal service?

(a) After 1 year

(b) After 5 years

(d) Never, he must keep them with the technical file

13.

Q3. ASME VIII section UW-51 (b)(4)
Full RT has been carried out on a vessel marked as RT-1. A 1 in (25 mm) thick butt weld shows rounded indications. The required action will be to:

(a) Reject the weld

(b) Accept the weld

(d) Assess the rounded indications using the criteria in ASME VIII appendix 4

14.

Q4. ASME VIII section UW-52 (c)
What is the minimum length of a spot radiograph?

(a) 3 in

(b) 6 in

(d) 12 in

15.

Q5. ASME VIII section UW-52 (d)(2)
A spot radiograph fails the acceptance criteria.
What should the API inspector request?

(a) An additional shot in the same location as the failure

(b) Two additional shots in the same location as the failure

(d) Two additional shots remote from the location of the failure

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Question 1 of 15

Click Here To Read Next API 510 Exam Chapter 11- ASME VIII and API 510 Heat Treatment

Now try these familiarization questions.

10.6 ASME VIII section UW-11 familiarization questions (set 1)

10.8 ASME VIII section UW-16 familiarization questions (set 2)

10.10 ASME VIII section UW-51/52 familiarization Questions (Set 3)

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