Chapters 3 (Definitions) Flashcards

NFPA Definitions, Sprinkler System Types, System Components, Sprinkler Types, Construction Definitions, Supply Piping Definitions, Hydrant Definitions, Storage Definitions, Marine Definitions, Hanging & Bracing Definitions

1
Q

Acceptable to the authority having jurisdiction.

A

Approved

3.2.1

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2
Q

An organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, an installation, or a procedure.

A

Authority Having Jurisdiction (AHJ)

3.2.2

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3
Q

Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspections of production of listed equipment or materials or periodic evaluation of services, and whose listing states that either the equipment, material or service meets appropriate designated standards or has been tested and found suitable for a specified purpose.

A

Listed

3.2.3

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4
Q

Indicates a mandatory requirement

A

Shall

3.2.4

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5
Q

Indicates a recommendation or that which is advised but not required.

A

Should

3.2.5

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6
Q

An NFPA Standard, the main text of which contains only mandatory provisions using the word “shall” to indicate requirements and that is in a form generally suitable for mandatory reference by another standard or code or for adoption into law.

A

Standard

3.2.6

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7
Q

A fire suppression or control device that operates automatically when its heat-activated element is heated to its thermal rating or above, allowing water to discharge over a specified area.

A

Automatic Sprinkler

3.3.1

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8
Q

An architectural ceiling feature that consist of a bounded area of ceiling located at a higher elevation than the attached lower ceiling.

A

Ceiling Pocket

3.3.4

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9
Q

Any ceiling system installed in the same plane with horizontal openings to the structure to above on all sides.

A

Cloud Ceiling

3.3.5.1

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10
Q

A continuous ceiling an a single plane.

A

Flat Ceiling

3.3.5.2

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11
Q

A ceiling with a slope not exceeding 2 in 12.

A

Horizontal Ceiling

3.3.5.3

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12
Q

A ceiling with a slope exceeding 2 in 12.

A

Sloped Ceiling

3.3.5.4

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13
Q

A continuous ceiling free from significant irregularities, lumps, or indentations.

A

Smooth Ceiling

3.3.5.5

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14
Q

A space completely enclosed by walls and a ceiling. Each wall in the compartment is permitted to have openings to an adjourning space if the openings have a minimum lintel depth of 8” from the ceiling and total width of the openings in each wall does not exceed 8 ft. A single opening of 36 inches or less in width without a lintel is permitted when there are no other openings to adjoining spaces.

A

Compartment

3.3.6

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15
Q

A valve controlling flow to water-based fire protection systems and devices.

A

Control Valve

3.3.7

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16
Q

A continuous material protruding downward from the ceiling to create a reservoir for collecting smoke and heat.

A

Draft Curtain

3.3.8

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17
Q

A suspended ceiling system, which is installed below the sprinklers, with listed translucent or opaque panels that are heat sensitive and fall from their setting when exposed to heat.

A

Drop-out ceiling

3.3.9

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18
Q

Limiting the size of a fire by distribution of water so as to decrease the heat release rate and pre-wet adjacent combustibles, while controlling ceiling gas temperature to avoid structural damage.

A

Fire Control

3.3.11

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19
Q

Sharply reducing the heat release rate of a fire and preventing its growth by means of a direct and sufficient application of water through the fire plume to the burning fuel surface.

A

Fire Suppression

3.3.12

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20
Q

A ceiling fan that is approximately 6 ft to 24 ft in diameter with a rotational speed of approximately 30 to 70 revolutions per minute.

A

High Volume Low Speed Fan

3.3.14

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21
Q

A calculated sprinkler system in which pipe sizes are selected on a pressure loss basis to provide a prescribed water density, in gal/min per sq ft, or a prescribed minimum discharge pressure or flow per sprinkler, distributed with a reasonable degree of uniformity over a specified area.

A

Hydraulically Designed System

3.3.15

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22
Q

A compartment of light hazard occupancy classification having unobstructed construction and a floor space not exceeding 800 sq ft

A

Small Room

3.3.22

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23
Q

A system that consists of an integrated network of piping designed in accordance with fire protection engineering standards that includes a water supply source, a water control valve, a waterflow alarm, and a drain.

A

Sprinkler System

3.3.23

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24
Q

The maximum anticipated static (nonflowing) or flowing pressure applied to sprinkler system components exclusive of surge pressures and exclusive of pressure from the fire department connection.

A

System Working Pressure

3.3.24

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25
Q

A wet pipe system using automatic sprinklers that contain a liquid solution to prevent freezing of the system, intended to discharge the solution upon sprinkler operation, followed immediately by water from a water supply.

A

Antifreeze Sprinkler System

3.4.1

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26
Q

A wet pipe sprinkler system having non-fire protection connections to automatic sprinkler systems in a closed-loop piping arrangement for the purpose of utilizing sprinkler pipe to conduct water for heating and cooling, where water is not removed or used from the system but only circulated through the piping system.

A

Circulating Closed-Loop Sprinkler System

3.4.2

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27
Q

A sprinkler system employing automatic sprinklers attached to a piping system containing air under pressure with a supplemental detection system installed in the same area as the sprinklers. Operation of the detection system actuates tripping devices that open dry pipe valves simultaneously and without loss of air pressure in the system. The detection system also serves as an automatic fire alarm system.

A

Combined Dry Pipe-Reaction sprinkler System

3.4.3

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28
Q

A sprinkler system employing open sprinklers or nozzles that are attached to a piping system that is connected to a water supply through a valve that is opened by the operation of a detection system installed in the same area as the sprinklers or the nozzles. When this valve opens, water flows into the piping system and discharges from all sprinklers or nozzles attached to the system.

A

Deluge Sprinkler System

3.4.4

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29
Q

A sprinkler system employing automatic sprinklers that are attached to a piping system containing air or nitrogen under pressure, the release of which (as from a sprinkler) permits the water pressure to open a valve known as a dry pipe valve, and the water then flows into the piping system and out the opened sprinkler.

A

Dry Pipe Sprinkler System

3.4.5

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30
Q

A sprinkler system in which parallel cross mains are connected by multiple branch lines, causing an operating sprinkler to receive water from both ends of its branch line while other branch lines help transfer water between cross mains.

A

Gridded sprinkler System

3.4.6

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31
Q

A sprinkler system in which multiple cross mains are tied together so as to provide more than one path for water to flow to an operating sprinkler and branch lines are not tied together

A

Looped Sprinkler System

3.4.7

32
Q

A type of sprinkler system capable of repeated on-off flow cycles in response to heat

A

Multicycle System

3.4.8

33
Q

A sprinkler system in which the pipe size is selected from a schedule that is determined by the occupancy classification and in which a given number of sprinklers are allowed to be supplied from specific sizes of pipe.

A

Pipe Schedule System

3.4.9

34
Q

A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that might or might not be under pressure, with a supplemental detection system installed in the same area as the sprinklers.

A

Preaction Sprinkler System

3.4.10

35
Q

A sprinkler system employing automatic sprinklers attached to a piping system containing water and connected to a water supply so that water discharges immediately from sprinklers opened by heat from a fire.

A

Wet Pipe Sprinkler System

3.4.11

36
Q

A horizontal pipe that extends from the branch line to a single sprinkler or a sprinkler above and below a ceiling.

A

Arm-Over

3.5.3

37
Q

The pipes supplying sprinklers, either directly or through sprigs, drops, return bends, or arm-overs.

A

Branch Lines

3.5.4

38
Q

The pipes supplying the branch lines, either directly or through riser nipples.

A

Cross Mains

3.5.5

39
Q

The pipe supplying cross mains, either directly or through risers.

A

Feed Mains

3.5.7

40
Q

A vertical pipe between the cross main and branch lines.

A

Riser Nipple

3.5.9

41
Q

The vertical supply pipes in a sprinkler system.

A

Risers

3.5.10

42
Q

A pipe that rises vertically and supplies a single sprinkler.

A

Sprig

3.5.11

43
Q

A device arranged to supervise the operative condition of the automatic sprinkler system.

A

Supervisory Device

(3.5.12)

44
Q

The above ground horizontal or vertical pipe between the water supply and the mains that contains a control valve, a pressure gauge, a main drain, and a water flow alarm device.

A

System Riser

3.5.13

45
Q

An attachment to the sprinkler system that detects a predetermined water flow and is connected to a fire alarm system to initiate an alarm condition or is used to mechanically or electronically initiate a fire pump or local audible or visual alarm.

A

Waterflow Alarm Device

3.5.14

46
Q

A type of spray sprinkler intended to provide fire control in storage applications using the design density/area criteria described in this standard.

A

Control Mode Density/Area (CMDA)

3.6.4.1

47
Q

A type of spray sprinkler that is capable of producing characteristic large water droplets and that is listed for its capability to provide fire control of specific high-challenge fire hazards.

A

Control Mode Specific Application (CMSA)

3.6.4.2

48
Q

A type of fast-response sprinkler that has a thermal element with RTI (response time index) of 50 or less and is listed for its capability to provide fire suppression is specific high-challenge fire hazard.

A

Early Suppression fast Response (ESFR)

3.6.4.3

49
Q

A type of spray sprinkler with maximum coverage areas ads specified in Section 8.8 and 8.9 of this standard.

A

Extended Coverage Sprinkler

3.6.4.4

50
Q

A device for use in applications requiring special water discharge patterns, directional spray, or other unusual discharge characteristics.

A

Nozzles

3.6.4.5

51
Q

A sprinkler that directs from 40% - 60% of the total water initially in a downward direction and that is designed to be installed with the deflector either upright or pendent orientation.

A

Old-Style / Conventional Sprinkler

3.6.4.6

52
Q

A sprinkler that does not have actuators or heat-responsive elements.

A

Open Sprinkler

3.6.4.7

53
Q

A type of spray sprinkler that has a thermal element with an RTI of 50 or less and is listed as a quick-response sprinkler for its intended use.

A

Quick-Response (QR) Sprinkler

3.6.4.8

54
Q

A type of quick-response sprinkler that has a thermal element with an RTI of 50 or less an is listed for its capability to provide fire suppression of specific fire hazards.

A

Quick-Response Early Suppression Sprinkler (QRES)

3.6.4.8.1

55
Q

A type of quick-response sprinkler that has a thermal element with an RTI of 50 or less and is complies with the extended protection areas defined in Chapter 8.

A

Quick-Response Extended Coverage Sprinkler

3.6.4.8.2

56
Q

A type of fast-response sprinkler that has a thermal element with an RTI of 50 or less that has been specifically investigated for its ability to enhance survivablility in a room of fire origin, and is listed for use in the protection of dwelling units.

A

Residential Sprinkler

3.6.4.9

57
Q

Panel construction and other construction where beams, trusses, or other members impede heat flow or water distribution in a manner that materially affects the ability of sprinklers top control or suppress a fire.

A
Obstructed Construction
(3.7.1)
58
Q

Construction where beams, trusses, or other members do not impede heat flow or water distribution in a manner the materially affects the ability of sprinklers to control or suppress a fire.

A
Unobstructed Construction
(3.7.2)
59
Q

A connection through which the fire department can pump supplemental water into the sprinkler system, standpipe, or other water-based fire protection systems, furnishing water for fire extinguishing to supplement existing water supply

A

Fire Department Connection (FDC)

3.8.1.4

60
Q

The pressure that exists in the distribution system, measured at the residual hydrant at the time the flow readings are taken at the flow hydrants.

A

Residual Pressure

3.8.1.9.1

61
Q

The pressure that exists at a given point under normal distribution system conditions measured at the residual hydrant with no hydrants flowing

A

Static Pressure

3.8.1.9.2

62
Q

The flow available from a hydrant at the designated residual pressure (rated pressure) either measured or calculated.

A

Rated Capacity

3.8.1.13

63
Q

A test performed by the flow and measurement of water from one hydrant and the static and residual pressures from an adjacent hydrant for the purpose of determining the available water supply at that location

A

Flow Test

3.8.1.14.1

64
Q

A test of a closed piping system and its attached appurtenances considering of subjecting the piping to an increased internal pressure for a specific period of duration to verify system integrity and leak rates.

A
Hydrostatic test
(3.8.1.14.3)
65
Q

A type of hydrant with the main control valve below the frost line between the footpiece and the barrel.

A

Dry Barrel Hydrant (frostproof Hydrant)

3.8.2.1.1

66
Q

Storage on solid shelves no exceeding 36 in. in total depth, arranged as part of a compact storage module with no more than 30 in. between shelves vertically and with no internal flue spaces other than those between individual shelving sections.

A

Compact Storage

3.9.1.6

67
Q

The combination of products, packaging, and container that determines commodity classification.

A

Commodity

3.9.1.5

68
Q

Storage on solid shelves not exceeding 36” in total depth, arranged as part of a compact storage module, with no more than 30” between shelves vertically and with no internal vertical flue space other than those between individual shelving sections.

A

Compact Storage

3.9.1.6

69
Q

Solid-piled, palletized, rack storage, bin box, and shelf storage in excess of 12 ft in height.

A

High-Piled Storage

3.9.1.16

70
Q

Standard sprinklers that are located in transverse flue spaces along the aisle or in the rack, are within 18 in. of the aisle face of storage, and are used to oppose vertical development of fire on the external face of storage.

A

Face Sprinklers

3.9.3.4

71
Q

Racks less than or equal to 12 ft in depth or single-row racks placed back to back having an aggregate depth up to 12 ft, with aisles having an aisle width of at least 3.5 ft between loads on racks.

A

Double-Row Racks

3.9.3.7.1

72
Q

Adjacent sway braces or a sway brace assembly intended to resist differential movement of the system piping in all directions.

A

Four-Way Bracing

3.11.3

73
Q

A device or assembly used to support the gravity load of the system piping.

A

Hanger

3.11.4

74
Q

A sway brace intended to resist differential movement perpendicular to the axis of the system piping.

A

Lateral Brace

3.11.5

75
Q

A sway brace intended to resist differential movement parallel to the axis of the system piping.

A

Longitudinal Brace

3.11.6

76
Q

A device used for fastening pipe to the building structure, installed in hardened concrete.

A

Post-Installed Anchors

3.11.8

77
Q

An assembly intended to be attached to the system piping to resist horizontal earthquake loads in two directions.

A

Sway Brace

3.11.12