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API 653 > Section 6 & 7 > Flashcards

Section 6 & 7 Flashcards

Inspection & Materials

1
Q

Who can perform the routine in-service inspections?

A

Anyone knowledgeable of the operations, the tank, and product stored in the tank

API 653 par 6.3.1.1

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2
Q

What membrane stress is that is required to cause a brittle fracture?

A

7 ksi (7000 PSI)

API 653 par 5.3.7

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3
Q

How often must the routine-in-service inspection by performed?

A

At least MONTHLY

API 653 par 6.3.1.2

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4
Q

Who is required to perform external inspections?

A

Authorized Inspector

API 653 par 6.3.2.1

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5
Q

What is the required inspection internal for an external inspection?

A

Lesser of 5 years or RCA/4N

API 653 par 6.3.2.1

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6
Q

Who determines the extent of thickness measurements?

A

Owner/Operator

API 653 par 6.3.3.1

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7
Q

What is the maximum internal for taking thickness measurements, when the corrosion-rate is not known?

A

5 years

API 653 par 6.3.3.2a

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8
Q

What is the required internal for taking thickness measurements, when the corrosion-rate is known?

A

Lesser of 15 years or RCA/2N years

API 653 par 6.3.3.2b

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9
Q

When is it acceptable to not take thickness measurements?

A

If the Internal Interval is shorter than the thickness monitoring internal

API 653 par 6.3.3.3

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10
Q

Surveys of the cathodic protection system is performed in accordance with what code?

A

API 651

API 653 par 6.3.4.1

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11
Q

What is the required internal for performing cathodic protection surveys?

A

Annual

API 653 par 6.3.4.1 & API 651 par 11.3.1.2

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12
Q

How often must the sources of impressed current be checked on a cathodic protection system?

A

At least every two months

API 653 6.3.4.1 & API 651 par 11.3.2.2

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13
Q

Who must conduct the internal inspection and supervise the collection of data?

A

Authorized inspector

API 653 par 6.4.1.2

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14
Q

When can an on-stream inspection be perofrmed in lieu of visual internal inspection of the tank?

A

When the inspection is being performed to determine the condition of the tank bottom

API 653 par 6.4.1.2

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15
Q

By what date must the tank owner/operators have to be in compliance with API 653

A

January 2017

API 653 par 6.4.2

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16
Q

What is the longest initial internal inspection internal allowed by API 653?

A

30 years (10 year base interval plus 10 years RPB plus 10 years for SS bottom) See Table 6.1

API 653 par 6.4.2.1.1

17
Q

What is the longest initial internal inspection interval allowed by API 653 for an oil storage tank without safeguards or RPBs?

A

10 years

API 653 par 6.4.2.1.1

18
Q

What is the maximum internal inspection interval, if an RBI was not performed and no other special condition is applicable?

A

10 years

API 653 par 6.4.2.1.2

19
Q

A tank that contains a highly viscous materal which will solidify above what temperature is not required to meet the maximum internal inspection interval requirement?

A

< 110°F

API 653 par 6.4.2.1.2(1)

20
Q

What is the longest subsequent internal inspection interval allowed by API 653 for an oil storage tank with remaining corrosion allowance that is greater than 150 mils?

A

20 years

API 653 par 6.4.2.2.1

21
Q

What is the longest subsequent internal inspection inteval allowed by API 653 for an oil storage tank without safeguards and remaining corrosion allowance is greater than 150 mils?

A

20 years

API 653 par 6.4.2.2.1

22
Q

How often must a RBI assessment be reviewed?

A

Every 10 years or sooner if warrnated by process, equipment or consequence changes

API 653 par 6.4.2.2.2

23
Q

When is it allowed to not scan the tank bottom during an internal inspection to determine external thickness loss?

A

When the bottom thickness can be determined by external means

API 653 par 6.5

24
Q

What type of records is the owner/operator required to maintain?

A

Construction, inspection, and repair/alteration records

API 653 par 6.8.1

25
Q

Who must write the external and internal reports?

A

Authorized Inspector

API 6.9.1

26
Q

How long must external and internal inspection reports be kept?

A

Life of the tank

API 653 par 6.9.1

27
Q

What test must be performed if adequate identification is not available for shell or bottom plates?

A

Chemical analysis, and mechanical testing (Charpy and Tension test)

API 653 par 7.3.1.2

API 653 (17 decks)

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