API 653 Exam Chapter 17

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API 653 Exam Chapter 17- Thirty Open-book Sample Questions

Take a Free API 653 Exam Chapter 17 Practice test with Latest Thirty Open-book Sample Question and Answers

1.

Q1. Atmospheric corrosion
As a practical rule, atmospheric corrosion:

 
 
 
 

2.

Q2. Repair of defective welds
Which of the following imperfections must always be repaired?

 
 
 
 

3.

Q3. Isolated pitting
How many pits of less than half the minimum required wall thickness, each of 0.25 in diameter is allowed in an 8 in a vertical line of corrosion on a tank?

 
 
 
 

4.

Q4. Calculation of test stress: upper courses
A shell material on an existing tank has a yield strength of 32 000 psi and UTS of 60 000 psi. What is the maximum allowable hydrostatic test stress for the material for use in the upper courses?

 
 
 
 

5.

Q5. API 653: reconstruction: under bead cracking
When welding attachments to API 650 groups IV, IVA, V, or VI materials, care must be taken to avoid

 
 
 
 

6.

Q6. Hot taps
Which of the following statements is true concerning hot taps?

 
 
 
 

7.

Q7. Brittle fracture risk
What is the maximum thickness of shell plate material of a tank designed for a temperature of 50 8F before a hydro test is required?

 
 
 
 

8.

Q8. Corrosion of a vertical weld
What is the minimum remaining thickness allowed in a corroded area located on a vertical weld in a tank built-in 1980?

 
 
 
 

9.

Q9. RT of shell repairs
A 12 in long repair is made to a tank shell vertical butt weld.
How much of the repair requires radiography after the repair?

 
 
 
 

10.

Q10. E value for shell assessment
When evaluating the retirement thickness of a 3/8 inch shell plate in which the corrosion is 1 in away from a weld but the material is unknown, the value used for joint efficiency (E) shall be:

 
 
 
 

11.

Q11. Welder qualifications
A welder is qualified in vertical downhill welding for a SMAW procedure. If an inspector finds this welder welding vertically uphill, what should the inspector do

 
 
 
 

12.

Q12. Repair and alterations of storage tanks
Which of these activities is defined as a major repair/major alteration of a storage tank? In none of these activities is the foundation of the tank disturbed

 
 
 
 

13.

Q13. Operation at elevated temperatures
A tank made to API 650 of unknown low carbon steel is designed to operate at an elevated temperature of 300 ℉. What is the correct allowable stress value that should be used in the calculations for the lower courses?

 
 
 
 

14.

Q14. Bottom annular plate thickness
If the stress in the first course of a tank is 26 000 psi and the course is 1/2 in thick, what is the minimum allowable thickness for the bottom annular plate?

 
 
 
 

15.

Q15. API 653: repairing tank bottoms
What is the minimum size permitted for a welded-on patch plate on a tank bottom?

 
 
 
 

16.

Q16. MT temperature limitations
The maximum surface temperature for dry magnetic particle testing of weldments is:

 
 
 
 

17.

Q17. Edge settlement repairs
For tanks that show excessive edge settlement, which plates should be replaced, rather than repaired?

 
 
 
 

18.

Q18. Subsequent inspection periods
Following an inspection, a tank has been subjected to an RBI assessment. The maximum allowable internal inspection period allowed is:

 
 
 
 

19.

Q19. Chloride SCC temperatures
Chloride SCC of 300-series stainless steel occurs above a metal temperature of about:

 
 
 
 

20.

Q20. Minimum thickness of the annular ring
The minimum allowable thickness of a tank annular ring is:

 
 
 
 

21.

Q21. Addition or replacement of shell penetrations
A new nozzle is to be installed in an existing shell. The nozzle is 1 in NPS and the shell is 3/8 in thick. How must the nozzle be installed?

 
 
 
 

22.

Q22. Acceptable future life with a known corrosion rate
A 50-year-old riveted oil tank has the following data:
. Diameter = 115 ft and height = 50 ft
. Oil density = 875 kg/m3
. Material: unknown
. Rivet arrangement: double-row lap-jointed
. Shell lower course has thinned from 1.3 into 1.0 in since new
When should the next UT shell thickness checks be done?

 
 
 
 

23.

Q23. CUI prevention/mitigation
Which of these would significantly reduce the risk of the occurrence of CUI on a 316 stainless steel tank component system fitted with standard mineral wool lagging?

 
 
 
 

24.

Q24. Shell evaluation formula
A freshwater tank has the following data:
. Diameter = 100 feet
. Height = 30 feet
. Allowable stress in lower shell course = 24.8 ksi
. Joint efficiency E = 0.8
What is the minimum allowable (corroded) thickness of the lower shell plate course (ignore isolated pitting)?

 
 
 
 

25.

Q25. Floor repairs using lap patches
A lap patch has been used to effect a permanent repair of the floor plate of a storage tank. The repair procedure shows that the patch crosses an existing floor seam weld and that the weld on the lap patch running parallel to the floor seam is 2 inches from it. What should the inspector do?

 
 
 
 

26.

Q26. Maximum settlement Bα at angle α to the tank shell
An API inspector is inspecting a 100-foot diameter storage tank and discovers an approximately circular area of settlement near the tank shell 3.5 in ‘deep’ extending from the tank shell, about 4 feet towards the tank center. The existing welds on the floor are at 25° from the tank centreline. What should the inspector do?

 
 
 
 

27.

Q27. Measuring settlement during a hydro test
How many settlement measurement points are required during a hydro test, compared to the ‘out-of-service’ requirement specified in API 653 appendix B?

 
 
 
 

28. Q28. API 653: settlement points
How many inspection points around the circumference are required to carry out a survey for a very large tank 280 ft in diameter?

 
 
 
 

29.

Q29. API 650: methods of inspecting joints
What is the maximum difference in design thickness that API 650 allows between plates classed as the same thickness for radiographic purposes?

 
 
 
 

30.

Q30. API 650: methods of inspecting joints
What is the minimum length of the weld (remote from intersections) that must be shown on a radiograph?

 
 
 
 

Question 1 of 30

API 653 Exam Chapter 17 – Thirty Open-book Sample Questions Free Practice Test

Prepare for the API 653 Aboveground Storage Tank Inspector Exam with our free practice test for Chapter 17 – Thirty Open-book Sample Questions. This chapter is designed to help candidates improve their open-book exam skills by practicing code-based questions with answers and explanations.

Here you can take a free API 653 Chapter 17 practice test with the latest questions and answers. These sample open-book questions are useful for understanding how to search API 653 requirements, apply code rules, solve calculation-based questions, and select the best answer during the exam.

Take Free API 653 Chapter 17 Practice Test

This free API 653 Chapter 17 quiz helps you practice important open-book multiple-choice questions related to aboveground storage tank inspection, corrosion evaluation, minimum thickness, repair, alteration, reconstruction, NDE, welding, hydrostatic testing, brittle fracture, cathodic protection, and tank linings.

This practice test is useful for:

  • API 653 exam candidates
  • Aboveground storage tank inspectors
  • QA/QC inspectors
  • Welding inspectors
  • Mechanical inspection engineers
  • NDT technicians
  • Tank repair and reconstruction professionals
  • Oil and gas inspection personnel
  • Refinery and petrochemical inspection teams
  • Asset integrity and reliability professionals

What You Will Learn in API 653 Chapter 17

API 653 Chapter 17 – Thirty Open-book Sample Questions helps candidates understand how open-book questions are asked in the API 653 exam. The open-book section requires candidates to locate detailed information in the applicable reference documents and apply the requirement correctly.

Important learning areas may include:

  • API 653 open-book question practice
  • Code searching and reference navigation
  • Minimum shell thickness calculations
  • Corrosion rate and remaining life
  • Tank bottom evaluation
  • Annular plate requirements
  • Suitability for service
  • Brittle fracture evaluation
  • Repair and alteration requirements
  • Shell insert plate and lapped patch repair
  • Tank reconstruction requirements
  • Hydrostatic testing requirements
  • NDE and radiographic examination
  • Welding qualification awareness
  • Cathodic protection concepts
  • Tank lining concepts
  • Exam-style open-book questions and answers

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Why Practice API 653 Open-book Sample Questions?

The open-book portion of the API 653 exam is different from the closed-book portion. In open-book questions, candidates are expected to know where to find the correct requirement and how to apply it correctly. Reading the code once is not enough. Regular practice is necessary to improve speed, accuracy, and confidence.

By taking this free API 653 Chapter 17 quiz, you can:

  • Improve your code-searching speed
  • Practice exam-style open-book questions
  • Understand important API 653 clauses
  • Improve calculation accuracy
  • Learn how to apply code requirements
  • Identify weak areas before the exam
  • Build confidence for the API 653 open-book section
  • Prepare in a structured and practical way

API 653 Open-book Exam Preparation

The API 653 open-book exam section requires candidates to work with detailed information from the applicable reference documents. API’s official Body of Knowledge states that the open-book portion requires the use of more detailed information that inspectors are expected to find in the documents, rather than memorize.

This means candidates should practice not only the answers but also the process of finding the answer. You should learn how to identify the topic, locate the correct section, understand the requirement, and apply it to the question.

Thirty Open-book Sample Questions – Why This Chapter Is Important

This chapter gives candidates a focused way to practice open-book-style questions before attempting larger question banks. Thirty sample questions are enough to test your current understanding and highlight the areas where you need more revision.

These questions help you improve your familiarity with API 653 code structure, important clauses, calculation formulas, and practical inspection requirements.

Who Should Take This Free API 653 Quiz?

This free API 653 Chapter 17 practice test is suitable for both beginners and experienced inspection professionals. It is especially useful for candidates preparing for the API 653 certification exam and professionals involved in tank inspection, repair, alteration, reconstruction, welding inspection, NDE, corrosion control, and asset integrity.

This quiz is ideal for professionals working in:

  • Oil and gas industry
  • Refineries
  • Petrochemical plants
  • Tank farms
  • Terminals
  • Mechanical inspection
  • Welding inspection
  • NDT inspection
  • Corrosion control
  • Tank repair and reconstruction projects
  • Maintenance and reliability departments

How This Practice Test Helps You

This practice test helps you revise API 653 open-book concepts in a simple question-and-answer format. Instead of only reading theory, you can test your knowledge and practice applying code requirements to exam-style questions.

Regular practice helps you remember important topics, improve code navigation, and answer open-book questions faster during the final exam.

Start Your Free API 653 Chapter 17 Quiz

Click the quiz below and start your API 653 Exam Chapter 17 – Thirty Open-book Sample Questions Free Practice Test. Read every question carefully, search for the correct reference if needed, choose the best answer, and review the explanation to strengthen your preparation.

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