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API 570 > 570 Study Guide - Section 6 - Interval Freq & Extent of Insp > Flashcards

570 Study Guide - Section 6 - Interval Freq & Extent of Insp Flashcards

1
Q

When must a piping inspection always be performed?

A. Whenever there is change in fluid service
B. Whenever the ownership of the piping changes
C. Whenever the location of the piping changes
D. Whenever the ownership and the location change of the piping changes
E. Whenever the ownership or the location change of the piping changes

A

D. Whenever the ownership and the location change of the piping changes

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2
Q

The API 570 piping classification is based on:

A. Consequence of failure
B. Probability of failure
C. Either consequence or probability of failure
D. Risk

A

A. Consequence of failure

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3
Q

A RBI assessment may be used to:

A. Increase the inspection limit
B. Decrease the inspection limit
C. Increase the inspection limits up to a maximum of 10 years
D. Increase or decrease the inspection limits

A

D. Increase or decrease the inspection limits

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4
Q

An RBI Assessment is performed on a Class 1 piping system and the thickness inspection interval is set

A. 3 years
B. 5 years
C. 10 years
D. 12 years

A

B. 5 years

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5
Q

An RBI assessment is performed on a class 3 piping system and the thickness inspection interval is set at 15 years. The RBI reassessments shall be conducted at least every:

A. 3 years
B. 5 years
C. 10 years
D. 15 years

A

C. 10 years

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6
Q

The RBI assessment must be reviewed and approved by the:

A. Authorized piping inspector
B. Corrosion specialist and authorized piping inspector
C. Owner/user and the authorized piping inspector
D. Piping engineer and authorized piping inspector

A

D. Piping engineer and authorized piping inspector

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7
Q

All API 570 piping systems shall:

A. Be assigned an API 570 classification
B. Have a minimum of five TML’s on each circuit
C. Be inspected by an authorized inspector
D. Coated or insulated

A

A. Be assigned an API 570 classification

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8
Q

Who is responsible to maintain a record of the piping classification for plants process fluids?

A. Authorized piping inspector
B. Corrosion specialist
C. Owner/user
D. Process engineer
E. Piping engineer
A

C. Owner/user

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9
Q

Process services which the highest potential of resulting in an immediate emergency if a leak were to occur are classified as:

A. Class 1
B. Class 2
C. Class 3
D. Severe cyclic

A

A. Class 1

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10
Q

Which service is NOT a class 1 piping system?

A. Flammable services that may auto-refrigerate
B. Hydrofluoric acids
C. Process with less than 3% hydrogen sulfide
D. Piping over public road

A

C. Process with less than 3% hydrogen sulfide

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11
Q

Flammable services with an atmospheric boiling point lower than what temperature are considered Class 1 services?

A. 32F
B. 40F
C. 50F
D. 120F

A

C. 50F

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12
Q

Process streams with hydrogen sulfide are considered Class 1 if the H2S content greater than:

A. 250 parts per million
B. 0.5%
C. 1.0%
D 3.0%

A

D 3.0%

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13
Q

Which service is a Class 2 piping system?

A. Anhydrous hydrogen chloride
B. Off-site propane
C. Offi-site gasoline
D. On-site sulfuric acid

A

D. On-site sulfuric acid

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14
Q

Off-site hydrogen is considered a:

A. Class 1 piping system
B. Class 2 piping system
C. Class 3 piping system
D. Class 4 piping system

A

B. Class 2 piping system

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15
Q

Process services that are flammable and vaporize slowly during a release are considered:

A. Class 1 piping
B. Class 2 piping
C. Class 3 piping
D. Class 4 piping

A

B. Class 2 piping

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16
Q

On-site process services that are flammable but do NOT significantly vaporize during a release, such as those that operate below the flash point, are considered:

A. Class 1 piping
B. Class 2 piping
C. Class 3 piping
D. Class 4 piping

A

C. Class 3 piping

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17
Q

An onsite piping system was classified by B31.3 as Category D. What is the API 570 classification for this piping?

A. Class 1 piping
B. Class 2 piping
C. Class 3 piping
D. Class 4 piping

A

D. Class 4 piping

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18
Q

Off-site gasoline is considered a:

A. Class 1 piping system
B. Class 2 piping system
C. Class 3 piping system
D. Class 4 piping system

A

C. Class 3 piping system

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19
Q

Off-site caustic is considered a:

A. Class 1 piping system
B. Class 2 piping system
C. Class 3 piping system
D. Class 4 piping system
E. Class D piping system
A

C. Class 3 piping system

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20
Q

Which of the following is NOT a major factor in setting an inspection interval on a piping system?

A. Construction code used to build the pipe
B. Corrosion rates - both long and short
C. Jurisdictional requirements
D. Pipe classification
E. Remaining life of the piping system
A

A. Construction code used to build the pipe

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21
Q

Who is responsible to set the inspection intervals for piping systems?

A. Owner/user or piping engineer
B. Piping engineer or authorized inspector
C. Authorized piping inspector or corrosion specialist
D. Owner/User or the authorized piping inspector

A

D. Owner/User or the authorized piping inspector

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22
Q

Inspection intervals should be reviewed:

A. Every 5 years
B. Every 10 years
C. After every inspection
D. After every change in plant ownership

A

C. After every inspection

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23
Q

In which of the following situations does the thickness inspection interval for a pipe system NOT need to be reviewed?

A. Chloride content in the process has tripled
B. Process pressure decreased 100 psig
C. Process temperature has increased 150F
D. Thickness inspection was just completed

A

B. Process pressure decreased 100 psig

24
Q

External inspection intervals on piping can be established by using a valid RBI assessment conducted in accordance with:

A. API 570
B. API 578
C. API 579
D. API 580

A

D. API 580

25
Q

Which of the following is NOT a factor that may

A. Local climate conditions
B. The conditions of the coating system
C. Process Fluids
D. Insulation design and condition

A

C. Process Fluids

26
Q

CUI is found at a damage insulation area. What should be done?

A. Inspect additional areas of this piping system
B. Inspect a minimum of 50% of the piping system
C. Strip insulation and inspect 100% of the affected piping system
D. Inspector stands in the pipertrack & shouts, “Eureka, I found it!”

A

A. Inspect additional areas of this piping system

27
Q

When thickness measurements are conducted, each thickness measurements set should include:

A. A representative number of CMLs
B. All CMLs
C. At least 50% of the CMLs
D. At least 75% of CMLs

A

A. A representative number of CMLs

28
Q

When thickness measurements are conducted, each thickness measurements set should include:

A. All CMLs
B. CMLs on each type of component , e.g., ells, tees
C. CMLs with the lowest remaining corrosion allowance
D. CMLs with the longest remaining life

A

B. CMLs on each type of component , e.g., ells, tees

29
Q

When thickness measurements are conducted, each thickness measurements set must include:

A. The CML point with the highest corrosion rate
B. The CML point with the earliest renewal date
C. The CML with the lowest remaining corrosion allowance
D. All CMLs in the piping circuit

A

B. The CML point with the earliest renewal date

30
Q

In-Service inspection of primary small-bore piping is:

A. Done to the same requirements as large-bore piping
B. Done to the requirements of large-bore Class 2 piping
C. Done to all requirements of large-bore Class 3 piping
D. Optional

A

A. Done to the same requirements as large-bore piping

31
Q

In-service inspection of Class 1 small-bore secondary piping is:

A. Done to the requirements of large-bore Class 1 piping
B. Done to the requirements of large-bore Class 2 piping
C. Done to the requirements of large-ore Class 3 piping
D. Optional

A

A. Done to the requirements of large-bore Class 1 piping

32
Q

In-service inspection of Class 2 small-bore secondary piping is:

A. Done to the requirements of Class 1 piping
B. Done to the requirements of other Class 2 piping
C. Done to the requirements of Class 3 piping
D. Optional

A

D. Optional

33
Q

Deadlegs should be:

A. Tracked in a separate circuit from the main piping system
B. Made from a higher alloy than the main piping system
C. Inspected by radiography
D. Inspected by close grid UT
E. Repaired with a total knee replacement

A

A. Tracked in a separate circuit from the main piping system

34
Q

Inspection of auxiliary small bore piping, piping associated with instruments and machinery is:

A. Set per the requirements of its classification
B. Set per the Class 3 requirements
C. Optional
D. No important

A

C. Optional

35
Q

Threaded connection associated with machinery are most likely to be subject to:

A. Chloride stress corrosion cracking
B. Fatigue cracking
C. Brittle fracture
D. Dew point corrosion

A

B. Fatigue cracking

36
Q

What is the maximum interval for the external inspection of a Class 1 piping system?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life for 5 years
E. Lesser of 1/2 life or 10 years
A

B. 5 years

37
Q

What is the maximum interval for thickness measurements on a Class 1 piping system?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life or 5  years
E. Lesser of 1/2 life or 10 years
A

D. Lesser of 1/2 life or 5 years

38
Q

What is the maximum interval for the external inspection of a Class 2 piping system?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life or 5  years
E. Lesser of 1/2 life or 10 years
A

B. 5 years

39
Q

What is the maximum interval for thickness measurements on a Class 2 piping system?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life or 5  years
E. Lesser of 1/2 life or 10 years
A

E. Lesser of 1/2 life or 10 years

40
Q

What is the maximum interval for the external inspection of a Class 3 piping system?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life or 5  years
E. Lesser of 1/2 life or 10 years
A

C. 10 years

41
Q

What is the maximum interval for thickness measurements on a Class 3 piping system?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life or 5  years
E. Lesser of 1/2 life or 10 years
F. Inspection is optional
A

E. Lesser of 1/2 life or 10 years

42
Q

What is the maximum interval for thickness measurements on a Class 4 piping system?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life or 5  years
E. Lesser of 1/2 life or 10 years
F. Inspection is optional
A

F. Inspection is optional

43
Q

What is the maximum interval for external measurements on a Class 4 piping system?

A. 5 years
B. 10 years
C. Lesser of 1/2 life or 5 years
D. Lesser of 1/2 life or 10 years
E. Inspection is optional
A

E. Inspection is optional

44
Q

What is the maximum interval for thickness measurements requirements on a Class 2 injection point circuit?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life or 3 years
E. Lesser of 1/2 life or 5 years
F. Lesser of 1/2 life or 10 years
A

D. Lesser of 1/2 life or 3 years

45
Q

What is the maximum interval for the external inspection of a Class 2 injection point circuit?

A. 3 years
B. 5 years
C. 10 years
D. Lesser of 1/2 life or 3 years
E. Lesser of 1/2 life or 5 years
F. Lesser of 1/2 life or 10 years
A

C. 10 years

46
Q

A class 4 piping system has some damaged insulation. How many of the damaged areas should be inspected?

A. 25%
B. 50%
C. 75%
D. 100%
E. Inspection is optional
A

E. Inspection is optional

47
Q

A Class 1 piping system has some damaged insulation. How many of the damaged areas should be inspected?

A. 25%
B. 50%
C. 75%
D. 100%

A

C. 75%

48
Q

A Class 3 piping system has some damaged insulation. How many of the damaged areas should be inspected?

A. 25%
B. 50%
C. 75%
D. 100%
E. Inspection is optional
A

A. 25%

49
Q

A Class 1 piping system is being inspected for CUI. How many of the suspect areas should be inspected?

A. 10%
B. 25%
C. 33%
D. 50%
E. 75%
F. 100%
A

D. 50%

50
Q

A Class 3 piping system is being inspected for CUI. How many of the suspect areas should be inspected?

A. 10%
B. 25%
C. 33%
D. 50%
E. 75%
F. 100%
G. Inspection is optional
A

A. 10%

51
Q

What is the recommended extend of CUI inspection at suspect locations on Class 2 piping systems?

A. 75%
B. 50%
C. 33%
D. 10%

A

C. 33%

52
Q

Which of the following is NOT a requirement for the organization that repairs relief devices?

A. Maintain a contract with a 3rd party inspection company
B. Maintain a documented training program
C. Demonstrate previous experience in repairing relief devices
D. Develop and follow an internal QC manual

A

A. Maintain a contract with a 3rd party inspection company

53
Q

Per API 570, a relief device repair orgnaiztion must:

A. Only have a fully documented quality control system
B. Have a fully documented quality control system and training program
C. Have a fully documented quality control system and training program, and be a holder of a VR stamp
D. Only have qualifications that are acceptable to the owner or user.

A

B. Have a fully documented quality control system and training program

54
Q

Who is allowed by API 570 to set the interval for relief devices that protect piping systems?

A. Only the authorized inspector
B. Only the pressure vessel engineer
C. Either the authorized inspector or the engineer
D. Either the authorized inspector or the engineer or qualified others

A

D. Either the authorized inspector or the engineer or qualified others

55
Q

The maximum inspection interval for a pressure relief device in normal service is:

A. The lesser of 1/2 remaining life or 10 years
B. Based on acceptable performance of the device
C. Based on acceptable performance of the device with a max. interval of 5 years
D. Based on acceptable performance of the device with a max. interval of 10 years

A

C. Based on acceptable performance of the device with a max. interval of 5 years

56
Q

The maximum inspetion interval for a pressure relief device in clean, non-corrosive and non-fouling service is:

A. The lesser of 1/2 remaining life or 10 years
B. Based on acceptable performance of the device
C. Based on acceptable performance of the device with a max. interval of 5 years
D. Based on acceptable performance of the device with a max. interval of 10 years

A

D. Based on acceptable performance of the device with a max. interval of 10 years

API 570 (13 decks)

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