API 510 Sample Questions | Free Practice Test

API 510 exam questions

Share This Post

Free API 510 Practice Questions
 5%

Question 1 of 20

1. Which of the following types of discontinuities is NOT normally detected by radiography?

Question 1 of 20

Question 2 of 20

2. API 510 __________ be used as a substitute for the original construction of pressure vessels before it is placed in-service.

Question 2 of 20

Question 3 of 20

3. Compared to ASTM A 515 Gr. 60 plates, ASTM A 516 Gr. 60 plates have:

Question 3 of 20

Question 4 of 20

4. Who establishes inspection interval for thickness measurements and external visual inspections.

Question 4 of 20

Question 5 of 20

5. ASME Sec. VIII Div. 1 is based on factor of safety equal to

Question 5 of 20

Question 6 of 20

6. Identify incorrect statement from following, if any.

Question 6 of 20

Question 7 of 20

7. In plate specification A 516 Gr 70, the letter A indicates:

Question 7 of 20

Question 8 of 20

8. The symbol which indicates ASME code stamping for vessels manufactured to ASME Section VIII Div. 1 is

Question 8 of 20

Question 9 of 20

9. What will be the applicable mandatory Edition and addenda for ASME Sec. VIII, Div. 1 to be used if contract for manufacturing a new vessel was signed on 14 December 2011?

Question 9 of 20

Question 10 of 20

10. Term "E" used in shell thickness formula  in ASME Sec. VIII Div.1, represents weld joint efficiency, whose value is equal to "1", if:

Question 10 of 20

Question 11 of 20

11. A restoration work by weld-overlay was carried out on corroded wall of vessel and it can now be used as per the design conditions of the vessel. This activity will be termed as:

Question 11 of 20

Question 12 of 20

12. In certain MT Check of pressure Vessel, The size of "indication" for a certain discontinuity was seen as 4 mm but after the MP Check and using magnifying glass it was seen having actual size as 2.5mm only. If stipulated acceptance criterion for that type of discontinuity was 3 mm, your decision is:

Question 12 of 20

Question 13 of 20

13. ASME Code requires averaging of impact test values of how many specimens for the relevant acceptance criteria.

Question 13 of 20

Question 14 of 20

14. A stainless steel weld has a crack open to the surface. Which NDT method will reveal it most effectively?

Question 14 of 20

Question 15 of 20

15. PQR document normally may be revised and re submitted for acceptance.

Question 15 of 20

Question 16 of 20

16. Hot tapping is best described by statement:

Question 16 of 20

Question 17 of 20

17. Which of the following represent grouping of weldment in ASME IX?

Question 17 of 20

Question 18 of 20

18. An inspector should be stricter while carrying out inspection on:

Question 18 of 20

Question 19 of 20

19. PT examination is used to detect the surface cracks in welds as well as in base metal plates. For proper detection,

Question 19 of 20

Question 20 of 20

20. As per ASME Sec. VIII Div. 1, “Weld joint category” means:

Question 20 of 20


 

How the API 510 exam questions developed? 

Periodically a question writing session is conducted.  Subject Matter Experts (SME’s), or individuals who specialize in pressure vessels, write questions from specific sections of the Code.  Each question is then checked by three other SME’s.

 

This validation exercise answers two questions;

  1. Is the question written clearly?
  2. Does the question cover knowledge that is important to a vessel inspector?

These questions then go into a question data-bank as non scored exam questions.

 

Presently there are over 1000 questions in the data-bank and are grouped by topics.  For each examination, there are 170 questions on the exam pulled in specified proportion from various categories. Only 140 Questions are scored. The remaining 30 are pre-test questions and not marked towards your score, meaning these pre-test questions do not affect your score whether you have answered them correctly or incorrectly. API does not tell you which ones these questions are.

API needs to ensure that these questions are not significantly challenged by the candidates and also has been answered by a reasonable number of people before adding them to their question bank as scored questions.

 

Publications Effectivity Sheet & Body of knowledge

Publications effectivity sheet is the list of applicable reference documents that you need to study for the exam. It also tells you which sections of each document are applicable. It can be revised from time to time when the codes and recommended practices or their addendum are revised and becomes applicable. Red texts indicate a revision or a change from the previous API Effectivity Sheet.

 

Body of knowledge also list the reference codes and recommended practices (without revision number) and elaborates on topics that a pressure vessel inspector needs to know giving examples. It shows what you are expected to know.

 

From time to time, API conducts a Job Analysis to re-evaluate the API 510 exam to ensure that it remains relevant and continues to focus on the inspectors’ core competencies. As a part of this process, the publication effectivity sheet and body of knowledge is revised. For example, API 510 Publications Effectivity Sheet applicable for exams held between May 2021 until January 2022 has been revised by adding the API RP 578 (PMI).

 

Number of Exam Questions per Code and RP

As per Effectivity Sheet for API-510 exam, there are 4 codes (API 510 code & ASME Codes V, VIII & IX) and 4 Recommended Practices (RP) prescribed for examination.

However, all of them are not equally important and therefore, do not require equal emphasis.

 

About 40% of questions are asked from API 510 code which is some 60 pages long, while the rest contribute to remaining 60% which are 2000 pages long.

 

CodeApproximate Percentage of Questions
API 510 Code & API 57250 – 51
ASME Sec. Vlll Div.110 – 12
ASME Sec. IX & API 57710 – 12
ASME Sec. V10 – 12
API RP 5715 – 6
API RP 576 & 5785 – 6
Gen. Knowledge2 – 3
safety2

 

Below table shows area of examination versus maximum number of exam questions and should give you a fair idea of how important each part of Body of Knowledge is.

 

Area of Examination                     Maximum No. of Questions

Scope and General Application of 510                            5

Damage Mechanisms                                                         15

Repairs                                                                                  15

NDE                                                                                       15

(Procedures, limitations, advantages, techniques, responsibilities, applications)

Welding                                                                                 15

Design                                                                                   10

Planning                                                                                20

Inspection and Testing Practices                                      15

Pressure Relief Devices                                                        4

Data Evaluation                                                                    20

Roles and Responsibilities                                                   6

Total Score                                                                            140

Add another 30 non scored questions that are distributed across the topics.

 

No Negative Marking

The pass mark is roughly 70% for all the API examinations. No negative marking is applied. Therefore, make sure that you have answered all the questions. At the end, click the ‘’review all’’ button and peruse through the list to ensure that you have not skipped any question. You can also check ‘’review incomplete questions’’ to ensure there is nothing on the list, that is, no question left unanswered.

Subscribe To Our Newsletter

Get updates and learn from the best

More To Explore

Audit & Assessment
QA QC tips

Audit & Assessment

Depending on the criticality and complexity of the materials & equipment being procured, CLIENT and their assigned representatives may conduct out a pre-award audit or assessment of CONTRACTOR & VENDOR and any intended lower-tier- Supply Chain prior to the award

pim-ppm
QA QC tips

Pre-production or Pre-Inspection Meeting (PPM or PIM)

Normally, 2-4 weeks after the kick off meeting or 2 weeks after submission of critical quality documents, the pre production meeting is held. It is advisable to hold the PIM after one cycle of critical document turnaround in order to

Do You Want To Boost Your knowledge?

See our Coursses