319 PIPING FLEXIBILITY

Question 1

319.1 Requirements

319.1.1 Basic Requirements. Piping systems shall have sufficient ____1____ to prevent thermal ____2___, _____3___ or movements of piping supports and terminals from causing

Answer 1

1)flexibility

2)expansion

3)contraction

Question 2

319.2.4 Cold Spring.

____1____ is the intentional deformation of piping during assembly to produce a desired initial ______2______ and ___3___.

Answer 2

1)Cold spring

2)displacement

3)reaction

Question 3

319.3.3 Poisson’s Ratio. _____1____ may be taken as __2.__at all temperatures for all metals. More accurate and _____3_____ data may be used if available.

Answer 3

1)Poisson’s ratio

2)0.3

3)authoritative

Question 4

321 PIPING SUPPORT

321.1 General

The __1__ of support structures (not covered by this Code) and of supporting ___2___ (see definitions of piping and pipe supporting elements in para. 300.2) shall be based on all _____3_____ acting loads transmitted into such supports.

Answer 4

1)design

2)elements

3)concurrently

Question 5

For piping containing _1_ or ___2__, weight calculations need not include the weight of ___3___ if the designer has taken specific precautions against entrance of liquid into the piping, and ifthe piping is notto be subjected to hydrostatic testing at initial construction or subsequent inspections.

Answer 5

1)gas

2)vapor

3)liquid

Question 6

321.1.4 Materials

(a) Permanent supports and restraints shall be of ____1____ suitable for the service conditions. If steel is ____-2_____ to a centerline radius less than twice its ____3____, it shall be annealed or normalized after forming.

Answer 6

1)material

2)cold-formed

3)thickness

Question 7

(b) Gray __1__ is not _____2_____ if the piping may be subject to impact-type loading resulting from pulsation or ____3___.

Answer 7

1)iron

2)recommended

3)vibration

Question 8

321.1.4 Materials

321.1.5 Threads. __1__ threads shall ___2___ to ASME __3___ unless other threads are required for adjustment under heavy loads.

Answer 8

1)Screw

2)conform

3)B1.1

Question 9

321.2.2 Inextensible Supports Other Than Anchors and Guides

(a) Supporting ___1___ shall be ____2____ to permit the free movement of piping caused by ____3___ expansion and contraction.

Answer 9

1)elements

2)designed

3)thermal

Question 10

(b) Hangers include pipe and beam clamps, __1___, ___2___, __3_, straps, chains, and other devices.

Answer 10

1)clips

2)brackets

3)rods

Question 11

(c) Sliding supports (or shoes) and brackets shall be ___1___ to resist the forces due to ____2___ in addition to the __3___ imposed by bearing.

Answer 11

1)designed

2)friction

3)loads

Question 12

321.2.3 Resilient Supports

(a) Spring supports shall be ___1___ to exert a ________2____, at the point of attachment to the pipe, equal to the load as determined by weight ______3_____.

Answer 12

1)designed

2)supporting force

3)balance calculations

Question 13

(b) _____1-_____ spring hangers provide a substantially ___2___ supporting force _____3_____ the range of travel.

Answer 13

1)Constant-support

2) uniform

3)throughout

Question 14

322.6.1 Stop Valves in Pressure Relief Piping.

If one or more ____1___ are installed between the piping being protected and its protective device or devices, or between the ____2____ device or devices and the point of _____3___, they shall meet the requirements of (a) and either (b) or (c), below.

Answer 14

1)stop valves

2)protective

3)discharge

Question 15

(a) A ____1-___ stop valve may be ____2___ on the inlet side of a ______3______ device

Answer 15

1)full-area

2)installed

3)pressure-relieving

Question 16

(b) Stop valves to be used in pressure relief piping shall be so ____1_____ or positively controlled that the closing of the maximum number of block ___2___ possible at one time will not reduce the ______-3_____ capacity provided by the unaffected relieving devices below the required relieving capacity.

Answer 16

1)constructed

2) valves

3)pressure-relieving

Question 17

(c) As an alternative to (b) above, stop ___1__ shall be so ____2____ and arranged that they can be locked or ___3___ in either the open or closed position.

Answer 17

1)valves

2)constructed

3) sealed

Question 18

322.6.3 Pressure-Relieving Devices

The terms ___1____ pressure¹¹ and piping system shall be substituted for maximum allowable _______2______ and __3___, respectively, in these paragraphs.

Answer 18

1) design
2) working pressure
3) vessel

Question 19

(b) Relief _____1_____¹² shall be in accordance with _____2____, _____3___, with the exceptions stated in alternatives (1) and (2), below

Answer 19

1)set pressure

2)Section VIII

3)Division 1

Question 20

(1)With the owner’s approval, the set pressure may exceed the limits in Section VIII, Division 1, provided that the limit on maximum relieving pressure not be exceeded.

(2) For a liquid ______1____ relief device that protects only a ______-2__ portion of a piping system, the set pressure shall not exceed the lesser of the system test pressure or __3__ of design pressure

Answer 20

1)thermal expansion

2)blocked-in

3)120%