Top 41 Latest API 570 Exam Questions and Answers

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1. API 570 covers inspection of :

A. new construction
B. new tank construction
C. in-service piping
D. in-service vessels

2. CUI is the acronym for :

A. Corrosion Under Insulation
B. Cold under-ground In-service piping
C. Corrosion Under Inside flow
D. Crack under Insulation

3. A person who assists the inspector by performing specific NDE on piping systems is defined as

A. NDE Technician
B. Assistant Inspector
C. NDT Level II inspector
D. Examiner

4. The response or evidence resulting from the application of a nondestructive evaluation technique is termed:

A. A crack
B. Porosity
C. A leak
D. An indication

5. The MAWP is:

A. The maximum internal pressure permitted in the piping system.
B. The minimum external pressure permitted in the piping system.
C. The maximum external pressure permitted in the piping system.
D. None of the above

6. A selection of piping encompassed by flanges or other connecting fittings is called:

A. A flanged pipe
B. A ready to be installed pipe
C. A spooled piece
D. A fabricated piping assembly

7. If a person has a degree in engineering he is automatically qualified to be:

A. An Authorized Piping Inspector
B. A piping inspector
C. A NDE Level II or III in any technique
D. None of the above

8. A TML is:

A. Thickness Measurement Laboratory
B. The Maximum Limit for thickness
C. Thickness Measurement Location
D. Time Medium Length

9. The result of excessive cyclic stresses that are often well below the static yield strength of the material is termed as:

A. material failure
B. fatigue cracking
C. failure cracking
D. creep cracking

10. Thickness measurements may be taken by ultrasonic instruments or what other method:

A. AET
B. ET
C. MT
D. RT

11. Which of the following tests are not normally conducted as part of a routine inspection:

A. UT thickness
B. Visual inspection
C. Radiographic profile
D. Pressure tests

12. Thickness measurements are not routinely taken on in piping circuits.

A. valves
B. straight run pipe
C. fittings
D. deadlegs

13. During the installation of a flanged connection, the bolts should:

A. Extend two threads past their nuts
B. Extend completely through their nuts
C. Extend only half way through their nuts
D. Extend at least .5 inches (1.25 mm) past their nuts.

14. Services with the highest potential of resulting in an immediate emergency if a leak were to occur are in:

A. Class 3
B. Class 2
C. Class 1
D. Owner/user designated system

15. The classification that includes the majority of unit process piping is labeled:

A. Class 3
B. Class 2
C. Class I
D. Owner/user designated system

16. Services that are flammable but do not significantly vaporize when they leak and are not located in high activity areas:

A. Class 3
B. Class 2
C. Class I
D. Owner/user designated system

17. What is the remaining life in years of a piping system whose corrosion rate is 0.074 inches per year, the actual wall thickness is 0.370 inches and the minimum required thickness is 0.1 inches

A. 36.68 years
B. 364.8 years
C. 3.6 years
D. 3.6 months

18. What is the long term corrosion rate of a piping circuit that started at 0.475 inches and is now 0.2 inch, the measurements were taken over a five year period.

A. 0.055 inches per year
B. 0.005 inches per year
C. 0.550 inches per year
D. Not enough information given

19. What is the short term corrosion rate for the above piping circuit in Question 18.

A. 0.055 inches per year
B. 0.005 inches per year
C. 0.550 inches per year
D. Not enough information given

20. A longitudinal crack in an existing piping circuit may be repaired by:

A. installing a full encirclement welded split sleeve
B. welding a box over the cracked area
C. welding a box over the crack
D. using a full encirclement welded split sleeve, with the approval of the piping engineer.

21. Soil to air interface Zone of a partially buried pipe is defined as

A. 6 inches above and 12 inches below the soil surface
B. Pipe running parallel with the soil surface is also included
C. 12 inches below and 6 inches above the soil surface
D. A and B above

22. API 570 was developed for

A. Petroleum refining and chemical process industry
B. Ship building industry
C. Power plant industry
D. Construction Industry

23. API 570 shall be used as a substitute for the original construction requirement governing a piping system before it is placed in service wherever possible.

A. True
B. False

24. API 570 applies to the piping systems for

A. Process fluids
B. Hydrocarbons and similar flammable and toxic fluid service
C. Sour water and hazardous waste streams above threshold limit
D. All of the above
E. Only A and B

25. Excluded and Optional piping system to API 570 requirements are

A. Fire water system
B. Hazardous fluid service below the threshold limit as defined by jurisdictional requirement.
C. Steam and boiler feed water service
D. Category D fluid service
E. All of the above

26. A imperfection of a type or dimension exceeding the acceptable criteria is defined as

A. Defect
B. Discontinuity
C. Lack of continuity
D. All of the above

27. The test point area for a8 “ NPS pipe is

A. 3” Dia Circle
B. 2” Dia Circle
C. 5” Dia Circle
D. None of the above

28. Who shall control activities related the repair, rerating and alteration of the piping system

A. Owner or User
B. Authorized Inspection Agency
C. Approved Inspection Agency
D. Any authorized piping Inspector

29. Who shall control the inspection program, frequency and maintenance of the Piping System?

A. Owner or User
B. Authorized Inspection Agency
C. Approved Inspection Agency
D. Any authorized piping Inspector

30. Who shall be responsible for the functions of the authorized Inspection Agency?

A. Owner or User
B. Authorized Inspection Agency themselves
C. Approved Inspection Agency
D. Any authorized piping Inspector
E. Regulatory authority or Class

31. As regards dead legs in piping circuits, what is recommended to be done by API 570 when ever possible?

A. Dead legs should be monitored on a monthly basis.
B. The chief inspector and the unit engineer should designate dead legs to be inspected.
C. Dead legs should be monitored on a yearly basis
D. Consideration should be given to removing dead legs that serve no further process purpose.

32. Which of the following is an not an example of environmental cracking?

A. Chloride SCC of austenitic stainless steels
B. Polythionic acid SCC of sensitized austenitic alloy steels.
C. Carbonate SCC. D. Low Temperature SCC.

33. An example of where creep cracking has been experienced in the industry is in;

A. 2-114 Cr steels above 800°F.
B. 1-114 Cr steels above 900°F.
C. 2-114 Cr steels above 900°F.
D. Chrome Vanadium steels above 1000°F.

34. Rerating piping systems is defined as;

A. changing the temperature rating.
B. changing the MAWP.
C. changing the temperature rating or the MAWP.
D. re-painting the pipe with the correct pressure and temperature

35. WFMT is

A. Wet Ferro magnetic testing
B. Wet Flourescent Magnetic Particle testing
C. Buried piping testing
D. Special internal testing

36. When preparing to inspect a piping system inspection personnel should?

A. Consult with the piping engineer.
B. Briefly review the history of individual piping systems before making any of the inspections required by API 570.
C. Check that repair materials are available.
D. Check that the corrosion engineer has reviewed the inspection plan.

37. As regards dead legs in piping circuits, what is recommended to be done by API 570 when ever possible?

38. When is it necessary to reevaluate the frequency of inspection for an existing piping system?

A. The API 570 authorized inspector suspects a problem.
B. The operations group desires an increase in inspection frequency.
C. The inspection interval must be reviewed and adjusted as necessary after each inspection or significant change in operating conditions.
D. More than one flange has started to leak.

39. The selection of TMLs within injection point circuits are established at four basic locations, three of which are:

 TMLs on appropriate fittings within the injection point circuit.
 TMLs on the pipe wall at the location of expected pipe wall impingement of injected fluid
 Establish TMLs at both the upstream and downstream limits of the injection point circuit.
What is the fourth consideration when selecting TMLs

A. TMLs at intermediate locations along the longer straight piping within the injection point circuit may be required
B. TMLs at extreme locations along the longer straight piping within the injection point circuit may be required
C. TMLs at pipe bends within the longer straight piping in the injection point circuit may be required
D. TMLs at pipe bends within the shorter straight piping in the injection point circuit may be required

40. When the inspector suspects or is advised that specific circuits may be susceptible to environmental cracking, the inspector should schedule supplemental inspections. What types of inspections may this include?

A. Radiography.
B. Wet Fluorescent Magnetic Particle NDE.
C. Ultrasonic NDE.
D. Radiography, Wet Fluorescent Magnetic Particle, and/or Ultrasonic examinations.

41. Suplemental inspection for piping systems are sometimes required. Which of the following may be considered supplements to normal inspection techniques?

A. Annual hydrostatic testing.
B. Eddy current testing.
C. Spool piece removal and visual inspection
D. Periodic use of radiography and/or thermography to check for fouling or internal plugging.