Tag: Interpreting ASME and API Codes

API 510- Chapter 1 Interpreting ASME and API Codes, Chapter 2 An Introduction to API 510 (Sections 1–4)

Take a Free API 510 Exam Chapter 1 and 2 Practice test with Latest An Introduction to API 510 (Sections 1–4) Question and Answers

1.

Q1. API 510 section 1.2.2 and appendix A: exclusions
Which of these vessels is excluded from the requirements of API
510?

 (a) A fired tubular heat exchanger in an oil refinery

 (b) A 200-litre air receiver at less than 0.5 bar gauge
pressure 

 (c) A separator vessel on an offshore platform (in USA
waters)

 (d) All vessels operating at less than 250 psi

2.

Q2. API 510 section 1.2.2 and appendix A: exclusions
Which of these vessels containing steam is excluded from the requirements of API 510?

 (a) A 100-litre vessel at 18 bar

 (b) A 100-litre vessel at 250 psi

 (c) A vessel of any size as long as the pressure is less than 300 psi

 (d) A vessel of any pressure as long as the capacity is less
than 120 gallons

3.

Q3. API 510 section 2: references
Which API code (not in the API 510 syllabus) covers welding on equipment in service?

 (a) API 579

 (b) API 574

 (c) API 2201

 (d) SNT-TC-1A

4.

Q4. API 510 section 3.2: alterations
Which of these is likely to be classed as an alteration to a pressure vessel?

 (a) Replacing the entire vessel head with one of the same design

 (b) Replacing existing nozzles with smaller ones

 (c) Replacing existing nozzles with larger ones

 (d) An increase in design pressure

5.

Q5. API 510 section 3.37: definitions of MAWP
In simple terms, MAWP means much the same as?

 (a) 90 % design pressure

 (b) 150 % design pressure

 (c) Design pressure

 (d) Hydraulic test pressure

6.

Q6. API 510 section 3.37: definitions of MAWP
At what position is MAWP calculated for in a vertical pressure vessel?

 (a) At the bottom of the vessel

 (b) At the top of the vessel

 (c) Halfway up the vessel

 (d) At the pressure gauge position, wherever it happens
to be

7.

Q7. API 510 section 3.37: definitions of MAWP
A pitted vessel is measured at an average of 10 mm thick and has a ‘designed’ corrosion allowance of 1.6 mm. It is now installed in a corrosion-free environment. What thickness is used when calculating the MAWP?

 (a) 13.2 mm

 (b) 11.6 mm

 (c) 10 mm

 (d) 8.4 mm

8.

Q8. API 510 appendix B3: inspector recertification
How often must an API 510-certified vessel inspector be ‘recertified’ by API?

 (a) Every year 

 (b) Every 3 years

 (c) Every 5 years

 (d) It depends on how many vessels the inspector has inspected

9.

Q9. API 510 section 4.4: responsibilities
During the repair of a pressure vessel, who is the API-certified vessel inspector responsible to?

 (a) The owner/user of the vessel

 (b) API

 (c) The repair contractor

 (d) All the parties, as the inspector is acting in an ‘honest broker’ capacity

10.

Q10. API 510 section 4.2: API code compliance
During the repair of a pressure vessel, who is ultimately responsible for compliance with the requirements of API 510?

 (a) The API-certified inspector 

 (b) The owner/user

 (c) The repair contractor

 (d) It absolutely depends on the contractual arrangements in force

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