Pressure Vessel Inspector API-510 Exam Dumps

dumps2024-07-23T10:53:22+08:00

Pressure Vessel Inspector API-510 exam is designed to determine if individuals have a broad knowledge base relating to maintenance, inspection, repair, and alteration of pressure vessels. The real API-510 exam contains 170 questions (110 closed-book questions and 60 open-book questions, of which only 140 are scored), and you have 7.5 hours (a short tutorial session, 2.75 hours for the closed-book portion, a 45-minute lunch break, and 3.75 hours for the open-book portion) to answer the questions. We have cracked the latest Pressure Vessel Inspector API-510 exam dumps, which are valuable in your preparation. Free Pressure Vessel Inspector API-510 exam dumps are available below.

Page 1 of 6

1. To exempt a vessel from internal inspections, what is the value of the corrosion rate that cannot be exceeded?

0.005” per year

0.001” between inspections not to exceed 5 years between inspections

0.001” per year

0.005” between inspections not to exceed 3 years between inspections

2. The remaining life of a vessel is 24 years.

What is the maximum interval for the internal inspection?

5 years

6 years

10 years

12 years

3. If a vessel is subjected to temperatures above design, what may happen

Precipitation at the grain boundaries may occur.

The rupture disk may implode

The relief device may fail

Creep of the vessel’s material may occur

4. The internal inspection interval must be reviewed whenever changes occur that could affect the degradation of the vessel.

In which of the following situations does a review of the internal interval need not be conducted?

operating temperature increases

operating pressure decreases

operating pressure increases

fluid composition changes

5. The definition of pressure vessels is:

A container designed to withstand internal or external pressure

A vessel for the containment of process fluids with or without internal pressure

A container designed to operate below atmospheric pressure

A container no greater than 8” in cross section

6. The best description of Temper embrittlement is:

Cracking due to operating at high temperatures above 650°F C 1100°F

Cracking due to low temperature service

Loss of ductility and notch toughness due to exposure above 650°F C 1100°F

Flaking of the metal surfaces, causing dip pits due to exposure above 650ºF C1100°F

7. At the discretion of ________, on-stream inspection may be substituted for internal inspection.

An engineer experienced in corrosion

The owner-user of the pressure vessel

An engineer experienced in pressure vessel design

The authorized pressure vessel inspector

8. An on-stream inspection can NOT be substituted for an internal inspection unless the remaining life exceeds:

2 years

4 years

5 years

10 years

9. Which is the most severe stress caused by internal pressure in a cylindrical shell?

Longitudinal stress acting along the longitudinal axis

Circumferential stress acting along the longitudinal axis

Circumferential stress acting along the circumferential axis

Longitudinal stress acting along the circumferential axis

10. For an above ground 'higher risk' vessel the maximum interval between external visual inspections is:

10 years or 1/2-remaining corrosion rate life, whichever is less

5 years

3 years

There is no maximum interval

Page 2 of 6

11. When both the ownership and the location of a pressure vessel are changed, what must be done?

The vessel must be inspected and certified by the original vessel manufacturer

The vessel must be externally and internally inspected prior to re-use

The vessel must be inspected externally and certified by the owner/user

A new nameplate shall be attached to the vessel

12. What is the maximum inspection interval for a vessel with a remaining safe operating life of less than four years?

The full remaining safe operating life up to a maximum of 4 years

The full remaining safe operating life up to a maximum of 2 years

The full remaining safe operating life up to a maximum of 1 year

The full remaining life of the vessel

13. Who must be consulted before the repair of a crack at a discontinuity where stress concentrations may be serious?

The owner-user

The pressure vessel engineer

The National Board inspector

The vessel manufacturer

14. What is the minimum temperature of the metal during a pressure test of a 2.125" thick vessel?

Minimum temperature shall be at least 20˚F above the minimum design metal temperature

Minimum temperature shall be at least 30˚F above the minimum design metal temperature

Minimum temperature shall be ambient temperature but not less than 55°F

Minimum temperature shall be 60°F

15. Which of the following relief devices is intended to work with steam boilers?

Relief Valve.

Safety Relief Valve.

Safety Valve.

Balanced Safety Relief.

16. When discussing repairs to a pressure vessel what is the definition of 'construction codes'?

The NBIC

The current ASME Code edition

The API 510 Code

The Code the vessel was constructed to including non-standard and jurisdictional special vessels

17. After a vessel has been placed in service, what Code is used to evaluate?

ASME Section VIII

ASME Section V

API 572

API 510

18. When the half bead or temper bead technique of repair is proposed, the first consideration that must be given should be;

Close monitoring of the welding operation

A metallurgical review conducted by an engineer shall be performed to assure the proposed alternative is suitable for the application

Time required to do the repair, and personnel safety

Consultation with the jurisdictional requirements

19. An in-service vessel is being repaired or altered.

If there is a conflict between the requirements of API 510 and the legal jurisdiction, which should be followed?

API 510

the legal jurisdiction

the most stringent requirements

either set of requirements based on engineer and AI approval

20. Which of the following will vessel rerating involve:

Calculations from either the manufacturer or an owner-user engineer experienced in pressure vessels

Review Inspection records verify the pressure vessel has been in the proposed service previously

Use of Non-Code requirements as established in accordance with the alternative rules of API 572

Calculations from only a manufacturer experienced in pressure vessels

Page 3 of 6

21. When must both an internal and external inspection always be performed?

at installation of vessel

whenever there is a change in fluid service

whenever the vessel's ownership changes

whenever the vessel's ownership and location changes

22. When a crack is discovered in a vessel that is in a highly stressed area, what action should you recommend to be considered as a first step in any effort to correct the flaw?

Call in a pressure vessel engineer

Design an overlay patch to completely cover the affected area that has rounded corners

Using an insert patch, to completely remove the affected area

Removing the crack using by grinding and inspect using an NDE procedure before repair by welding

23. What can be done to extend the life of a vessel with a corroded area in the shell plate 6 inches from the weld, a joint efficiency of less than 1, and a corrosion thickness currently near the minimum required thickness?

Recalculate t minimum for current operating conditions using E < 1.

Recalculate t minimum for current operating conditions using E = 1.

Recalculate t minimum for design conditions using E = 1.

Monitor the thickness during the run.

24. One of the steps when rerating a pressure vessel is the documentation of the:

Approval of the ASME

Report from an external professional engineer

Approval of the operation’s engineering department

Calculations from the manufacturer or the owner-user’s engineer

25. Increasing hardness of the metal substrate is not always a good indicator of improved resistance to __________, particularly where corrosion plays a significant role.

stress corrosion

erosion

stress corrosion cracking

ductile failure

26. Temporary repairs to pressure vessels:

must be replaced with permanent repairs during the next scheduled shutdown.

may remain in place for long periods if approved by the pressure vessel engineer.

may remain in place for long periods if approved by the API-authorized pressure vessel inspector.

may remain in place permanently if approved by the pressure vessel engineer and the API authorized pressure vessel inspector.

27. Unless there is indicative information on the brittle characteristics of the vessel material, the test temperature of the metal during a pressure test need not exceed what temperature?

130˚F

120°F

60°F

200˚F

28. Pneumatic testing may be substituted for hydrostatic testing provided all but which of the following?

Water is not readily available

Refractory

Temperature

Process

29. Pressure relieving device repair organizations shall have a fully documented quality control system and which of the following?

A valve Repair Certificate of Authorization issued by the API

A Valve Repair Certificate of Authorization issued by the National Board

Fully documented training program

A Valve Repair Certificate of Authorization issued by the ASME

30. Test or inspection intervals on pressure-relieving devices in typical process service should not exceed which of the following?

Interval should not exceed 10 years

Interval should not exceed 7.5 years

Interval should not exceed 5 years

Interval should not exceed 2.5 years

Page 4 of 6

31. The pressure vessel owner/user is required to maintain a permanent and progressive record.

These records shall contain all but which of the following?

Names of all authorized inspection personnel

Operating and inspection history

Construction and design information

Repair, alteration, and re-rating information

32. Whose authorization is required as a minimum prior to the start of any repairs or alterations?

The authorized pressure vessel inspector

The maintenance manager

The production manager

The insurance company

33. Repairing a crack on a vessel should not be attempted without prior consultation with _________.

Pressure vessel engineer experienced in pressure vessel design

The original manufacturer

Production manager

The company writing the insurance on the vessel

34. For alterations or repairs on vessels that were previously post-weld heat treated as a code requirement and fabricated of P-1 and P-3 materials, preheating is not to be less than ___________ may be considered as an alternative to PWHT.

300˚F

700˚F

500˚F

900˚F

35. A corroded area in a carbon steel vessel is being repaired by using weld overlay (weld build-up).

The vessel surface should be examined by:

MT or PT before welding

MT or PT after welding

MT or PT before and after welding

MT or PT after welding, and UT flaw detection after 24 hours

36. If local post-weld heat treatment is to be substituted for 360 degree banding, who is required to develop the procedure?

The repair organization

The owner user

The authorized pressure vessel inspector

A pressure vessel engineer experienced in the appropriate engineering specialties

37. During vessel repairs or alterations, who is required to maintain the welding records?

authorized inspector

repair organization owner/user

pressure vessel engineer

welding inspector

38. Fillet welded on patches require special design considerations, especially relating to which of the following?

Efficiency

Length of previous services of the vessel

Shape of the patch

None of these

39. When a vessel is to be entered for an internal inspection which of the following precautions should be observed?

Inspect the vessel for proper electrical grounding

The area should be roped off and no one else is to be working in the area

No hot work permits in the immediate area must be issued until the inspection is complete

OSHA rules should be reviewed and followed where applicable

40. Flush (insert) patches shall be installed with full penetration butt joints and the corners shall be what type?

The corners shall be squared

The corners shall be rounded 1 inch minimum radius

The corners shall be provided with a 3 inch radius

The corners shall be provided with a 6 inch radius

Page 5 of 6

41. The re-rating of a pressure vessel will be considered complete only when the authorized pressure vessel inspector witnesses which of the following?

The attachment of an additional nameplate of stamping

The pressure test required by the code

The final painting of the vessel

The stamping of welds by each welder

42. When does the API-510 Inspection Code apply?

Vessels constructed to API-572

Vessels after they have been placed in service

Pressure vessel being fabricated to ASME Section VIII, Division 1 or 2

Only pressure vessels being fabricated for refinery/petro-chemical service

43. The function of an authorized inspection agency in accordance with API-510, is whose responsibility?

Authorized repair organization

Owner-user

Authorized inspection agency

Authorized engineering company

44. When developing an inspection plan for equipment operating at elevated temperatures, ____________ having knowledge of elevated temperature and metallurgical effects on vessel materials of construction should be consulted

A pressure vessel repair organization

A registered professional engineer

A corrosion specialist

An authorized Inspector

45. When a corroded area of considerable size is encountered and the circumferential stresses govern, what is maximum length over which the thickness can be averaged for a vessel with an inside diameter of 48 inches?

20 percent of the vessel diameter

24 inches

20 inches

25 percent of the vessel diameter

46. Which type of discontinuity can liquid penetrant inspection find?

Cracks open to the surface

Laminations on the surfaces of plate

Internal cracking of welds

Subsurface porosity

47. When determining the corrosion rate for a new vessel involved in changes in service conditions and the probable corrosion rate cannot be determined by either available data or experience of the owner/user, on-stream determination shall be made.

What is the length of service recommended by API-510?

1000 hours

100 months

1000 days

1000 weeks

48. Widely scattered pits may be ignored as long as all but which of the following is true?

No pit depth greater than 1/2 the vessel wall exclusive of the corrosion allowance

Total area of pits does not exceed 7 square inches in any 8” diameter circle

Sum of dimensions along a straight line does not exceed 2 inches

No pit depth greater than 2/3 the vessel wall exclusive of the corrosion allowance

49. For proper internal or external visual inspections, surfaces must be:

Hydro blasted

Grit blasted to SA 2

Wire brushed

The type of surface preparation depends on individual circumstances and could be any of the above

50. Risk-based Inspection combines the assessment of?

likelihood of poor inspection and the consequence of failure

likelihood of failure and the effects on plant operation of failure

chances of failure and the cost of failure

likelihood of failure and the consequence of failure

Page 6 of 6

51. Who is responsible to ensure that the Authorized Inspection Agency functions in accordance with the requirements of API 510?

Jurisdiction

Owner/user

Pressure vessel engineer

52. Who is responsible when rerating calculations are required for a vessel?

The chief inspector and the unit engineer

The API authorized inspector

A professional engineer only, is allowed to perform these calculations

The manufacturer or an owner-user engineer (or his designated representative)

Pressure Vessel Inspector API-510 Exam Dumps

Pressure Vessel Inspector API-510 Exam Dumps

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