Api 570 Piping Inspector Exam - Body Of Knowledge Preparation

Front 1

Steel and alloy piping are manufactured to standard dimensions in nominal pipe sizes up to ____ inches.

Back 1

48

(API 574)

Front 2

Steel and alloy piping are also manufactured to standard thicknesses designated as schedules in nominal pipe sizes up to ___ inches.

Back 2

36

(API 574)

Front 3

For what service is cast iron normally used?

Back 3

Nonhazardous service, such as water.

(API 574)

Front 4

What type of joints are most commonly found in the petroleum industry?

Back 4

Butt-welded joints

(API 574)

Front 5

What two methods are used for determining thickness on in-service piping?

Back 5

UT and RT

(API 574)

Front 6

The skin temperature of indicated "hot spots" should be determined by any of which three methods?

Back 6

1. Portable Thermocouple
2. Temperature Indicating Crayons
3. Pyrometer

(API 574)

Front 7

What type of defect would you expect to find at the bottom of a ring joint flange?

Back 7

Cracking

(API 574)

Front 8

Bodies of valves that operate in severe cyclic temperature service should be checked internally for what type of defect?

Back 8

Cracking

(API 574)

Front 9

Why is the area between the seats on a gate valve a weak location?

Back 9

The wedging action of the disk when it seats causes strain in the area.

(API 574)

Front 10

Welded joints in carbon steel and carbon-molybdenum steel exposed to elevated temperatures of 800 degrees F or above may be subject to what kind of damage mechanism?

Back 10

Graphitization

(API 574)

Front 11

What type of joint must be used without axial restraint on the piping?

Back 11

Clamped Joints

(API 574)

Front 12

Piping that has been in service or had hot spots of 800 degrees F and above should be checked for creep or deformation with time under stress by doing what?

Back 12

Measuring the outside diameter of the pipe and comparing the measurement with the established data for life.

(API 574)

Front 13

For service testing of Category D piping systems, ASME B31.3 limits the gage pressure to ___ psi.

Back 13

150

(ASME B31.3)

Front 14

a) What should be considered when testing carbon steel piping during cold weather or if cold fluids are used in testing?
b) What damage mechanism is this intended to prevent?

Back 14

a) Transition temperature of the steel
b) Brittle Fracture

(API 574)

Front 15

What is the Barlow Formula for straight pipe and what is it used to determine?

Back 15

The Barlow Formula is t = PD/2SE for straight pipe and it is used to determine required thickness.

(API 574)

Front 16

Initial thickness on seamless piping may have an under-tolerance of as much as ___%.

Back 16

12.5

(API 574)

Front 17

ASME B16.47 covers the total range of larger flanges in the range of NPS ___ through NPS ___.

Back 17

26 through 60

(API 574)

Front 18

Bell-and-spigot is a typical method listed in API 574 for joining what type of components?

Back 18

Non-metallic piping

(API 574)

Front 19

Risk-Based Inspection (RBI) practices are covered under which standard?

Back 19

API 580

(API 574)

Front 20

What component requires particular attention during external visual inspection of piping systems, and why?

Back 20

Threaded joints due to their ease of replacement while in service.

Front 21

What is the upstream limit of an injection point circuit?

Back 21

12" or 3D, whichever is greater

(API 570, API 574)

Front 22

What is the downstream limit of an injection point circuit?

Back 22

The 2nd change in flow direction, or 25' past the first change in flow direction, whichever is less.

(API 570, API 574)

Front 23

What does the examination area of an injection point circuit cover when more extensive examination is required?

Back 23

The examination area begins 12" upstream and continues 10D downstream.

(API 570)

Front 24

What is an example of a group of materials subject to temper embrittlement?

Back 24

Low-alloy steels, such as 2-1/4 Chromium steels.

Front 25

CML is an abbreviation for what?

Back 25

Condition Monitoring Location

(API 574)

Front 26

At what temperature range does CUI become more severe?

Back 26

212 degrees F - 350 degrees F

(API 571, 4.3.3.3(d))

Front 27

What is a form of corrosion that can occur at the junction of dissimilar metals when they are conjoined together in a suitable electrolyte?

Back 27

Galvanic Corrosion

(API 571, 4.3.1.1)

Front 28

For poorly-coated piping where cathodic protection potentials are inconsistent, What time interval may a pipe-to-soil potential survey be conducted for verification of continuous corrosion control?

Back 28

5 years

(API 570, 9.3.2)

Front 29

PWHT at 1150 degrees F for carbon steels is considered an effective protection against what type of cracking?

Back 29

Caustic stress corrosion cracking

(API 571, 4.5.3.6(a))

Front 30

Of the following choices, which is NOT considered piping according to ASME B31.3?

a) Dead Legs
b) Relief Valves off Pipes
c) Pipe Support Bent
d) Gate Valves

Back 30

c) Pipe Support Bent

(ASME B31.3, 300.2)

Front 31

A close-interval pipe-to-soil potential survey measures the potential of the pipe to the soil directly over the pipe and what four possible pre-determined intervals?

Back 31

2.5 feet, 5 feet, 10 feet, or 20 feet

(API 574, 10.10.1.2)

Front 32

Carbon, low-alloy, and other ferritic steels may be susceptible to brittle fracture at or below ambient temperatures. Brittle fracture is not usually a concern with what wall-type of piping?

Back 32

Relatively thin-wall piping

(API 574, 7.4.12.1)

Front 33

When a low soil resistivity reading is obtained during a soil resistivity measurement, what does this mean regarding the corrosiveness of the soil?

Back 33

The soil is relatively more corrosive.

(API 570, 9.2.4)

Front 34

Who determines if a pressure test is required after a repair is made to a piping system?

Back 34

The inspector

(API 570, 8.2.7)

Front 35

To what code requirements must a visual examination be performed in accordance with?

Back 35

ASME Section V, Article 9

(B31.3, 344.2.2)

Front 36

What factors is creep cracking dependent upon?

Back 36

Time, temperature, and stress

(API 574, 7.4.11.1)

Front 37

Chloride stress corrosion cracking (SCC) of austenitic stainless steels due to moisture and chlorides, polythionic acid SCC of sensitized austenitic alloy steels due to exposure to sulfide, moisture condensation of oxygen, Caustic SCC (amine embrittlement), Amine SCC, and Hydrogen-induced cracking are all examples of what kind of damage mechanism?

Back 37

Environmental cracking

(API 574, 7.4.8.1)

Front 38

Who must authorize the use of a flush patch in a pipe?

Back 38

The inspector

(API 570, 8.1.2)

Front 39

What type of valve would not be used in a line that is to be pigged?

Back 39

Reduced-port gate valves

(API 574, 4.3.2, 4.3.3, 4.3.6)

Front 40

According to API 570, the inspection of secondary, auxiliary SBP associated with instruments and machinery is:

Back 40

Optional

(API 570, 6.6.2)

Front 41

An examiner can evaluate the results of an NDE examination, provided what conditions?

Back 41

If they have received special training, and if they have been authorized to do so by the owner/user.

(API 570, 3.1.22)

Front 42

What type of cracking occurs to sensitized austenitic alloy steels due to sulfide moisture condensation?

Back 42

Polythionic acid SCC

(API 574, 7.4.8.1)

Front 43

Piping systems that are known to have a remaining life over ___ years or that are protected against external corrosion, need not have insulation removed for the periodic external inspection. The condition of the insulating system or the outer jacketing should be observed periodically by operating or other personnel.

Back 43

10

(API 570, 6.4)

Front 44

When conducting PMI on autogeneous welds, it is necessary to conduct the testing on which components?

Back 44

Only the base metal

(API 578, 4.2.6.2)

Front 45

Bend flattening shall not exceed ___% of nominal outside diameter for internal pressure.

Back 45

8

(B31.3, 332.2.1)

Front 46

Bend flattening shall not exceed ___% of nominal outside diameter for external pressure.

Back 46

3

(B31.3, 332.2.1)

Front 47

Before bolting, mating gasket contact surfaces shall be aligned to each other within ___ in/ft, measured across any diameter.

Back 47

1/16

(B31.3, 335.1(c)(1))

Front 48

Is heating allowed in cold sprung joints?

Back 48

No

(B31.3, 335.1(b))

Front 49

The gap on socket-welded joints at the socket is ___ before welding to allow for thermal expansion of the weld material.

Back 49

1/16"

(B31.3, Fig. 328.5.2C)

Front 50

The stress ratio, St/S, is defined as:

Back 50

Nominal pressure stress divided by the allowable stress at the design minimum temperature.

(B31.3, Figure 323.2.2B)

Front 51

What type of loads consist of the weight of piping components, insulation, and other superimposed permanent loads supported by the piping?

Back 51

Dead Loads

(B31.3, 301.6.2)

Front 52

What does Article 1 of ASME Section V cover?

Back 52

General Requirements

(ASME V, Article 1)

Front 53

What Article of ASME Section V covers Leak Testing?

Back 53

Article 10

(ASME V, Article 10)

Front 54

What Article of ASME Section V covers Liquid Penetrant Testing?

Back 54

Article 6

(ASME V, Article 6)

Front 55

What does IQI stand for?

Back 55

Image Quality Indicator

(ASME V, Article 2, T-233)

Front 56

What type of examination is covered by ASME Section V Article 9

Back 56

Visual Examination (VT)

(ASME V, Article 9)

Front 57

What Article in ASME Section V covers the Standard Practice for Measuring Thickness by Manual Ultrasonic Pulse-Echo Contact Method?

Back 57

Article 23

(ASME V, Article 23)

Front 58

A lead letter "F" is shown on a radiograph near the IQI. This letter indicates what?

Back 58

The IQI was on the film side.

(ASME V, Article 2, 277.1(b))

Front 59

Regarding welding, what are the F-number groupings based upon?

Back 59

Usability Characteristics

(API 577, 7.3)

Front 60

What should be done with wet electrodes?

Back 60

They should be discarded

(API 577, 7.7)

Front 61

During an external inspection, you find broken anchors and guides. What is probably the cause?

Back 61

Misalignment

(API 574, 10.3.6)

Front 62

Define defect.

Back 62

A discontinuity that by nature or accumulated effect renders a part of product unable to meet minimum applicable acceptance standards.

(API 577, 3.16)

Front 63

If buried pipe is uncoated, the inspector should check the soil-to-air interface. He should call for excavating how deep to assess the potential for hidden damage?

Back 63

6" to 12"

(API 574, 7.4.5)

Front 64

CUI that is dependant upon climate is more apt to occur in what kind of geographical locations?

Back 64

In warmer, marine locations

(API 574, 7.4.4)

Front 65

When taking UT readings on piping that is operating at elevated temperatures, the calibration block should be warmed to what temperature?

Back 65

Within 25 degrees F of the piping temperature

(API 577, 9.9.1)

Front 66

Dial-indicating pressure gages should have the dials graduated over a range of approximately double the intended maximum pressure but in no case less than ___ times that pressure.

Back 66

1 1/2

(ASME Section V, T-1030)

Front 67

Cracking of piping systems can result from excessive cyclic stresses that are often well below the static yield strength of the material. The cyclic stresses can be imposed by pressure, mechanical, or thermal means. This type of cracking is known as:

Back 67

Fatigue cracking

(API 574, 7.4.10.1)

Front 68

All repair and alteration work must be authorized by the ______ prior to its commencement.

Back 68

Inspector

(API 570, 8.1.2)

Front 69

The 2G position refers to ______ welds made in the _______ position.

Back 69

Groove, horizontal.

(ASME IX, QW-461.9)

Front 70

For Liquid Penetrant examination, the temperature of the penetrant and the surface of the part to be examined shall not be below ____ nor above _____ during the examination period.

Back 70

40 degrees F, 125 degrees F

(ASME V, T-652)

Front 71

What is the raised face dimension for pipe sizes NPS 10 and over?

Back 71

0.25"

(B16.5, 6.4.1, Table II-15)

Front 72

What is the extent of follow-up examinations with NDE or insulation removal at areas with damaged insulation in a Class 1 system?

Back 72

75%

(API 570, Table 3)