B31.3

Question 1

300.1 Scope

Rules for the Process Piping Code Section B31.3 have been developed considering piping typically found in petroleum refineries;

Pharmaceutical, textile, paper, oreprocessing, semiconductor, and ____1____; food and beverage processing facilities; and related processing ____2___ and ____3____.

Answer 1

1)cryogenic plants

2)plants

3)terminals

Question 2

301.3.1 Design Minimum Temperature.

The design minimum temperature is the ___1___ ____2____ temperature expected in service

Answer 2

1)lowest

2) component

Question 3

301.5 Dynamic Effects

301.5.1 Impact.

Impact forces caused by external or internal conditions (including changes in flow rate, hydraulic shock, liquid or solid slugging, flashing, and geysering) shall be taken into ___1___ in the design of __2___.

Answer 3

1)account

2) piping

Question 4

301.5.2 Wind.

The effect of __1___ loading ___ __ ____2_____ ______ in the design of exposed piping

Answer 4

1) wind

2)shall be taken into account

Question 5

301.5.3 Earthquake.

The effect of ____1_____ loading _______1________ in the design of piping

Answer 5

1)earthquake

2)shall be taken into account

Question 6

301.5.4 Vibration.

Piping shall be designed, arranged, and supported to eliminate excessive and harmful effects of vibration that may arise from such sources as impact, _______1______, ______ ____2__ _____, resonance in compressors, external vortex shedding (e.g., wind), and acoustically induced vibration.

Answer 6

1)pressure pulsation

2)turbulent flow vortices

Question 7

301.6.1 Live Loads.

These __1___ include the weight of the medium ____1____ or the medium used for test. Snow and ice loads due to both ____3_____ and operating conditions shall be considered.

Answer 7

1) loads

2)transported

3)environmental

Question 8

301.6.2 Dead Loads.

These __1__ consist of the weight of piping ____2____, components, andother superimposed permanent __1__ ____3____ by the piping.

Answer 8

1)loads

2)insulation

3)supported

Question 9

302.3.3 Casting Quality Factor, Ec

(a) General. The casting quality factors, Ec,

defined herein shall be used for cast _____1____ not having ______2-_____ ratings established by standards in Table 326.1.

Answer 9

1)components

2)pressure–temperature

Question 10

(b) Basic Quality Factors. Castings of __1__ and _________2 ____, conforming to listed specifications, are assigned a basic casting quality factor, Ec, of 1.00 (due to their conservative allowable stress basis).

Answer 10

1) gray

2)malleable iron

Question 11

(c) Increased Quality Factors. Casting quality factors may be increased when _____1____ examinations are ___2____ on each ___3___.

Answer 11

1)supplementary

2)performed

3)casting

Question 12

302.3.4 Weld Joint Quality Factor, Ej

(a) BasicQuality Factors. Theweld _______1_____, tabulated in Table A-1B are basic ____1____ for straight or spiral(helical seam) welded joints for pressurecontaining ___3____.

Answer 12

1)joint quality factors

2)factors

3)components

Question 13

(e) Weld Joint Strength Reduction Factor. ​The weld joint strength reduction factor, W, is the __1__ of the nominal stress to cause ___2___ of a weld joint to that of the corresponding base material for an elevated temperature condition of the same duration. It only applies at weld locations in ____3____or spiral (helical seam) welded piping components.

Answer 13

1) ratio

2)failure

3)longitudinal

Question 14

302.5 Mechanical Strength

(a) Designs shall be checked for adequacy of ________1______ under applicable loadings. When necessary, the wall thickness shallbe increased to prevent overstress, damage, ___2___, or buckling due to superimposed loads from supports, ice ____3____, backfill,transportation, handling, or other loads enumerated in para. 301.

Answer 14

1)mechanical strength

2)collapse

3)formation

Question 15

(b) Where increasing the thickness would excessively increase local stresses or the risk of _____1______, or is otherwise impracticable, the impact of applied loads may be mitigated through additional ____2____, ___3___, or other means without requiring an increased wall thickness.

Answer 15

1)brittle fracture

2)supports

3)braces

Question 16

308.2.1 Slip-On Flanges

(a) A ___-__ 1_____shall be ___2___-______ as shown in Figure 328.5.2B when the___3___ is

Answer 16

1)slip-on flange

2)double-welded

3) service

Question 17

(1) subject to severe ____1____, crevice ___2___, or ___3__ loading

Answer 17

1)erosion

2)corrosion

3)cyclic

Question 18

(2) ___1___, __2__, or damaging to ___3__ tissue

Answer 18

1)flammable

2)toxic

3)human

Question 19

(3) __1___ severe __2___ conditions

Answer 19

1)under

2)cyclic

Question 20

(4) at ______1_____ below __2__ (−150°F)

Answer 20

1)temperatures

2)−101°C

Question 21

(b) The use of slip-on flanges should be ___1___ where many large ____2_____ cycles are ____3___, particularly if the flanges are not insulated.

Answer 21

1)avoided

2)temperature

3)expected

Question 22

308.2.4 Flanges for Severe Cyclic Conditions.

Unless it is safeguarded, a flange to be used under ____1_____ conditions shall be welding neck conforming to ASME ___2__ or ASME ___3___, or a similarly proportioned flange designed in accordance with para. 304.5.1.

Answer 22

1)severe cyclic

2)B16.5

3)B16.47

Question 23

309.2 Specific Bolting

309.2.1 Low Yield Strength Bolting. ___1___ having not more than ___2___ (30 ksi) specified minimum yield strength shall not be used for flanged joints rated ASME __3__ Class 400 and higher, nor for flanged joints using metallic gaskets, unless calculations have been made showing adequate strength to maintain joint tightness.

Answer 23

1)Bolting

2)207 MPa

3)B16.5

Question 24

309.2.2 Carbon Steel Bolting.

Except where limited by other provisions of this Code, carbon steel bolting may be used with ____1____ gaskets in flanged joints rated ASME B16.5 Class 300 and lower for bolt metal temperatures at___2___ to ___3__ (−20°Fto400°F), inclusive.

Answer 24

1)nonmetallic

2)−29°C

3)204°C

Question 25

309.2.4 Bolting for Severe Cyclic Conditions.

Low yield ___1___ bolting (see para. 309.2.1) shall not be used for ___2___ joints under severe ___3__ conditions.

Answer 25

1) strength

2)flanged

3)cyclic

Question 26

309.3 Tapped Holes

_____1_____ for ______2-_____ bolting in metallic piping components shall be of sufficient depth that the thread engagement will be at least seven-eighths times the nominal thread ___3____.

Answer 26

1)Tapped holes

2) pressure-retaining

3)diameter

Question 27

PART 4 FLUID SERVICE REQUIREMENTS FOR PIPING JOINTS

310 GENERAL Piping joints shall be selected considering joint tightness and ___2___ strength under expected service and test conditions of pressure,____3____ , and _____3____ . See para. 302.5.

Answer 27

1)mechanical

2)temperature

3)external loading

Question 28

311.2 Specific Requirements

311.2.1 Backing Rings and Consumable Inserts

(a) If a backing __1__ is used where the resulting crevice is detrimental (e.g., subject to corrosion, ____2___, or _____3_____ conditions), it should be removed and the internal joint face ground smooth.

Answer 28

1)ring

2)vibration

3)severe cyclic

Question 29

(b) Split backing __1__ shall not be used under severe __2__ ___3____.

Answer 29

1) rings

2)cyclic

3)conditions

Question 30

311.2.2 Socket Welds

(a) _____1_____ joints (para. 328.5.2) should be avoided in any service where crevice ____2___ or severe ___3___ may occur.

Answer 30

1)Socket welded

2) corrosion

3)erosion

Question 31

(c) Socket __1___ larger than ____2_ (NPS 2) shall not be used under severe _____3______.

Answer 31

1) welds

2)DN 50

3)cyclic conditions

Question 32

311.2.3 Fillet Welds

(a) Filletwelds in accordance with para. 328.5.2 maybe used as ___1__ welds to attach socket welding ___2____ and slip-on ___3___.

Answer 32

1)primary

2)components

3)flanges

Question 33

311.2.4 Seal Welds.

____1____ (para. 328.5.3) may be used only to ___2___ leakage of ___3___ joints and shall not be considered as ____3____ any strength to the joints.

Answer 33

1)Seal welds

2)threaded

3) contributing

Question 34

312.1 Joints Using Flanges of Different Ratings

Where ___1___ of different ratings are bolted together, the ___2__ of the joint shall not exceed that of the lower rated ___3__.

Answer 34

1)flanges

2)rating

3)flange

Question 35

312.2 Metal to Nonmetal Flanged Joints

Where a ______1____ e is bolted to a nonmetallic flange, both should be ____-2____. A ___-3____ gasket is preferred

Answer 35

1) metallic flang

2) flat-faced

3)full-faced

Question 36

313 EXPANDED JOINTS

(a) ____1_______shall not be used ___2__ severe ___3___ conditions.

Answer 36

1)Expanded joints

2)under

3)cyclic

Question 37

314 THREADED JOINTS

314.1 General

(a) _____1_____ should be avoided in any service where crevice ___2___, severe erosion, or ___3__ loading may occur.

Answer 37

1)Threaded joints

2)corrosion

3)cyclic

Question 38

(b) When ______1_____ are intended to be seal welded, thread sealing ___1___ shall not be_2_.

Answer 38

1)threaded joints

2)compound

3)used