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API 653 BOK > API 658 Sec - 06 (Inspection) > Flashcards

API 658 Sec - 06 (Inspection) Flashcards

1
Q

The purpose of inspection of tank is ………..

A

to assure continued tank integrity

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2
Q

The interval between inspections of a tank (both internal and external) should be determined by …………….. unless special reasons indicate that an earlier inspection must be made.

A

its service history

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3
Q

A history of the service of a given tank or a tank in similar service (preferably at the same site) should be ,,,,,,, so that complete inspections can be scheduled with a frequency commensurate with the corrosion rate of the tank

A

available

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4
Q

…………………..

examination methods shall be considered when establishing inspection frequencies

A

On-stream, nondestructive

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5
Q

Jurisdictional regulations, in some cases, control the frequency and interval of the inspections. These
regulations may include …………..

A
  • vapor loss requirements,
  • seal condition, leakage,
  • proper diking, and
  • repair procedures
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6
Q

The external condition of the tank shall be monitored by ……………. from the ground on a routine basis.

A

close visual inspection

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7
Q

Personnel performing this inspection should be knowledgeable of the …………..

A
  • storage facility operations,
  • the tank, and
  • the characteristics of the product stored
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8
Q

The interval of (Close Visual Inspection) such inspections shall be consistent with conditions at the particular site, but shall not exceed
………

A

one month

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9
Q

external inspection of all tanks shall be given a visual external inspection by …………..

A

an authorized inspector

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10
Q

External Inspection of tanks must be conducted at least …………..

A

5 years or RCA/4N years, whichever is less
RCA = Diffe.btw measurend shell thk. and Min.required thk.
N = shell corrosion rate in mils per year

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11
Q

Insulated tanks need to have insulation removed only to the extent ……………

A

necessary to determine the condition of the exterior wall of the tank or the roof.

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12
Q

Recommended practices dealing with the prevention of hydrocarbon ignition are covered by …………

A

API 2003.

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13
Q

Ultrasonic Thickness Inspection shall be made at intervals not to exceed the

A

for unknown material = 5 years

for known material = ≤ 15 years or RCA/2N years

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14
Q

external ultrasonic thickness measurement can substituted with ……….and frequency interval shall be

A
  • Internal Insection

- ≤ 15 years or RCA/2N years

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15
Q

Internal inspection is primarily required to do as……….

A
  • bottom is not severely corroded and leaking
  • Data required for the minimum bottom and shell
    thickness
  • Identify and evaluate any tank bottom settlement
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16
Q

Initial Internal Inspection Interval shall be………

A

within 5 years from date of first publication of API Standard 653, Fourth Edition, Addendum 2, January 2012

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17
Q

The interval from initial service date until the first internal inspection shall ………

A

not exceed 10 Years

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18
Q

The initial inspection interval shall not exceed ……….for tanks without a Release Prevention Barrier

A

20 years

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19
Q

The initial inspection interval shall not exceed ……….for tanks with a Release Prevention Barrier

A

30 years

20
Q

Initial internal inspection date and reassessment can be established using Risk Based Inspection (RBI) assessment an initial inspection interval exceeding 10 years but shall not exceed

A
  • 20 years for tanks without a Release Prevention Barrier

- 30 years for tanks with a Release Prevention Barrier

21
Q

If an RBI assessment has been performed, the maximum initial internal inspection interval does not apply to tanks
storing the following.

A
  • Highly viscous substances which solidify at
    temperatures below 110 °F
  • substance or mixture that not prohibited by Jurisdiction and not hazardous chemical
  • will not adversely impact surface or groundwater
    beyond the facility or affect human health or the
    environment
22
Q

The interval between subsequent internal inspections shall be determined in accordance with

A

corrosion rate procedures

risk based inspection procedures

23
Q

When using the corrosion rate procedures of 6.4.2.2.1 the maximum subsequent internal inspection interval shall be……

A

20 years for tanks without a Release Prevention Barrier

30 years for tanks with a Release Prevention Barrier

24
Q

An RBI assessment shall consist of a systematic evaluation of both the

A

likelihood of failure &

associated consequences of failure, in accordance with API RP 580

25
Q

The RBI assessment shall be thoroughly ……………

clearly defining all factors contributing to both likelihood and consequence of tank leakage or failure

A

documented,

26
Q

The RBI assessment shall be performed by a team including ………….

A

inspection and engineering expertise knowledgeable in the proper application of API RP 580 principles, tank design, construction, and modes of deterioration

27
Q

The RBI assessment shall be reviewed and approved by a team as above at intervals ……..

A

not to exceed 10 years or

more often if warranted by process, equipment, or consequence changes.

28
Q

The applied RBI methodology (not every individual assessment) shall have a …………… to demonstrate that it has all the key elements defined in API 580 and this section.

A

documented validation review

29
Q

The validation should be performed by an entity ………..

A

external to the RBI assessment team.

30
Q

corrosion rates are based on prior inspections, they shall be derived from ………….. inspection effectiveness as defined by the owner-user procedures

A

either high or medium

31
Q

Corrosion rates from………….. effectiveness such as spot UT shall not be used in the RBI process.

A

low inspection

32
Q

A tank shall be …………. from service when the risk exceeds the acceptable risk criteria established per the owner user procedure.

A

removed

33
Q

API does not recommend ………. tank bottoms to failure, or operating tanks indefinitely with bottom……..leaks.

A

running ,

known or suspected

34
Q

………….provides sample checklists of items for consideration when conducting in-service and out-of-service inspections

A

Annex C

35
Q

It is recognized that records may not exist for older tanks, and judgments must be based on experience with tanks in ………….

A

similar services.

36
Q

The owner/operator shall maintain a complete record file consisting of three types of records, namely:

A

construction records,
inspection history, and
repair/alteration history.

37
Q

Construction records may include …………

A 
nameplate information, 
drawings, 
specifications, 
construction completion report,
and any results of material tests and analyses.
38
Q

The inspection history includes …………

A 
all measurements taken
condition of all parts inspected
condition of all parts inspected
corrosion rate and inspection
interval calculations.
39
Q

The repair/alteration history includes

A

all data accumulated on a tank from the time of its construction with regard to
repairs, alterations, replacements, and service changes
results of any experiences with coatings and linings

40
Q

For each external and internal inspection performed the authorized inspector shall prepare …………

A

a written report.

41
Q

prior to returning the tank to service—repairs critical to the integrity of the tank are; ………….

A

(e.g. bottom or shell repairs);

42
Q

after the tank is returned to service—minor repairs and maintenance activity are;

A

(e.g. drainage improvement, painting, gauge repairs, grouting, etc.);

43
Q

monitor condition for continued deterioration are; —

A

(e.g. roof and/or shell plate corrosion, settlement, etc.)

44
Q

Personnel performing NDE shall be qualified in accordance with ………

A

API 650, Section 8

45
Q

The results of any NDE work, however, must be considered in the evaluation of the tank by …………..

A

an authorized inspector

46
Q

As per API Standard 653, a routine, in service, close visual external inspection of an aboveground storage tank (AST) shall be done, at an interval not exceeding:

A

One Month

API 653 BOK (30 decks)

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