Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

510 > Closed Book Questions > Flashcards

Closed Book Questions Flashcards

1
Q

What is the predominant factor in mechanical fatigue cracking

A

Surface Notches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Low energy on a notch toughness test indicates

A

that the material is brittle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

300 Series Stainless Steel is mostly susceptible to

A

Chloride SCC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Chloride SCC appears

A

Branched cracking, transgranular cracking

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

CMLs Consider potential for

A

Local Corrosion + Service specific damage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Before any repairs are performed, all proposed methods of design, execution, materials, welding
procedures, NDE, and testing shall be approved by

A

inspector or engineer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

For alterations, major repairs, and
temporary repairs, approval by

A

both the inspector and engineer is required

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

All nozzle installations shall be approved by

A

an engineer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Heat Exchanger in KOH service, surface breaking flaws, intergranular cracking. Metalographic analysis finds they are oxide filled -

A

Caustic SCC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Controlled Deposition Welding in lieu of PWHT, what must happen

A

repair method must be reviewed and endorsed by PVE prior to implementation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A torispherical head has corrosion in the crown, what calculation should be used to determine required wall thickness

A

Hemispherical head thickness calculation in construction code
The central portion of the head is defined aas the center of the head with a dia = to 80% shell diameter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Locally thinned areas can be assessed by -

A

Part 6 in API-579-1 / FFS-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

RBIs should be updated

A

after each vessel inspection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Pre 1968 Vessels cant be

A

Re-rated to latest code

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

To complete a re-rating, the inspector must

A

witness attachment of an additional name plate, or additional nameplate stamping

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Maximum pressure gauge during pressure testing

A

Four times maximum test pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

PRV with an auxiliary valve to control the main valve is?

A

A pilot valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Use of short vs long-term corrosion rate determined by

A

inspector in consult with a corrosion specialist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

HIC Cracks look like

A

a set of stairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Sulfidisation usually found in

A

Oil, gas, coke services

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

For a new vessel or for a vessel for which service conditions are being changed, one of the following methods shall be used to determine the vessel’s probable corrosion rate

A

a) A corrosion rate may be calculated from data collected by the owner-operator on vessels operating in the
same or similar service.
b) A corrosion rate may be determined through appropriately placed ultrasonic sensors on the equipment.
c) A corrosion rate may be estimated by a corrosion specialist.
d) A corrosion rate may be estimated from published data on vessels in same or similar service.

22
Q

What should be done for a pressure vessel which has no nameplate and unidentified materials

A

Perform an inspection

23
Q

To minimize the risk of brittle fracture during a pressure test, the metal temperature should be maintained
at least X above MDMT for vessels over 2” thick

A

17C or 30F

24
Q

To minimize the risk of brittle fracture during a pressure test, the metal temperature should be maintained
at least X above MDMT for vessels at or below 2”

A

6C or 10F

25
Q

When hydrotesting solid weld overlaid or clad austenitic stainless steel, the water temperature should
not exceed X to avoid possible XX

A

50 °C (120 °F), chloride stress corrosion cracking

26
Q

Which welding process uses a stream of droplets

A

GMAW

27
Q

If external coverings are in good condition and there is no reason to suspect damage behind
them…

A

it is not necessary to remove them for inspection of the vessel.

28
Q

Preheat as per API 510 -The 150 °C (300 °F) temperature should be checked to assure that XXXX is maintained at the minimum temperature during welding. The maximum interpass temperature shall not exceed 315 °C (600 °F).

A

100 mm (4 in.) of the material or four times the material thickness (whichever is greater) on each side of the groove

29
Q

API QUTE/QUSE quals are

A

shear wave examiners

30
Q

minimum precautions to a pneumatic test:

A

inspection precautions of ASME Code

31
Q

After review who can change/delete the inspectors repair recommendations?

A

inspector supervisor

32
Q

On-stream inspection of pressure boundary items primarily to

A

detect damage mechanics identified in the inspection plan

33
Q

Inspection period for rupture discs

A

depends on service conditions

34
Q

Replacing a hemispherical head to a torispherical head maintaining the same MAWP is

A

a major repair

35
Q

a 360 degree full encirclement sleeve with full pen welds is

A

not an adequate permanent repair

36
Q

Fillet welded patches shall have a rounded corner radius of

A

at least 1 inch

37
Q

Lap bands can be considered a permanent repair

A

never

38
Q

When isolating for inspection of a PRV with set pressure greater than that of connected outlet flange

A

inlet block closed before outlet block closed

39
Q

the API 578 scope includes

A

Carbon steel, stainless steel & non ferrous metals

40
Q

Knuckle area on a torispherical head required t calculated by

A

full torispherical head calculation in construction code

41
Q

Inspectors actively engaged as an inspector are tested to API 510 revisions

A

Every 6 years

42
Q

Inspection plans are developed by

A

inspector or engineer

43
Q

Multiple thickness reading should be taken in areas

A

where T actual is varied from MDR

44
Q

CMLs can be reduced or eliminated when

A

Possibility of failure or consequences of failure are low

45
Q

on-stream UT measurements are

A

optional

46
Q

If areas of CUI are found

A

inspect other susceptible locations

47
Q

Corrosion rates of an area under examinations should be calculated from

A

lowest reading, or an average of several readings

48
Q

Temperature correction for UTT should be done for temps above

A

65C

49
Q

Pressure tests should be performed after repairs when

A

the inspector believes one is necessary and specifies it in the repair plan

50
Q

A Pressure vessel engineer, as per API 510 is assumed to be able to

A

Assess design aspects relating to a pressure vessel

51
Q

MAWP Calculation

A

P=SEt/R+(0.6*t)

510 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions