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Building Construction > Chapter 6 Features Of Fire Protection > Flashcards

Chapter 6 Features Of Fire Protection Flashcards

1
Q

Air flow

A

The use of high air velocity to stop smoke movement.

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2
Q

Automatic wet standpipe system

A

Standpipe system attached to a water supply capable of supplying the system demand at all times; it requires no action other than opening a hose valve to provide water at hose connections.

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3
Q

Carbon dioxide system

A

A fire protection system intended to protect materials that can be damaged by water; it uses carbon dioxide to suppress the fire.

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4
Q

Clean agent system

A

Gaseous fire extinguishing agent that does not leave a residue when it dissipates.

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5
Q

Compartmentation

A

Subdivision of a building into small areas so that fire or smoke is confined to the room or section in which it originates.

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6
Q

Conflagration

A

Rapid involvement of a fire situation that goes beyond the normal attack situations that fire departments encounter.

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7
Q

Critical radiant flux (CRF)

A

The amount of external radiant heat energy (measured in watts per square centimeter) below which a flame front will cease to propagate.

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8
Q

Demand area

A

The “expected” area of sprinklers that will activate as anticipated by the sprinkler design standard; essentially the projected size of the fire.

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9
Q

Density

A

The unit rate of water application to an area or surface; expressed in GPM/ft^2.

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10
Q

Dry chemical system

A

An automatic fire extinguishing system that discharges a dry chemical agent.

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11
Q

Egress

A

Adequate exits within a building.

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12
Q

Fire barriers

A

Assemblies that are typically 1 to 2 hour rated and used to enclose shafts, exit stairwells, exit passageways, and horizontal exits, and to separate spaces from certain hazardous areas.

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13
Q

Fire damper

A

A mechanical device installed in an HVAC system at the point at which it passes through a fire resistive assembly so as to block the spread of fire through the fire rated assembly.

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14
Q

Fire partitions

A

Assemblies that are typically one hour rated and are used to create fire resistant corridors and to separate tenant spaces in covered mall buildings.

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15
Q

Fireproofing

A

Material applied to structural elements or systems that provides increased fire resistance; usually serves no structural function.

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16
Q

Fire rated

A

The classification indicating in time (hours) the ability of a structure or component to withstand a standardized fire test. Does not necessarily reflect performance in an actual fire.

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17
Q

Fire resistance rating

A

Quality ascribed to a wall, floor, or column assembly that has been tested in a standard manner to determine the length of time it remains structurally stable (or resist the passage of fire) when attacked by a test fire.

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18
Q

Fire resistant

A

Construction design to provide reasonable protection against fire.

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19
Q

Fire retardant

A

Substance that helps delay or prevent combustion.

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20
Q

Fire walls

A

Assemblies that are typically 2 to 4 hour rated and are used to create “separate buildings” within an overall structure.

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21
Q

Flameproof

A

Resistant to fire.

22
Q

Flammable

A

Combustible that is capable of easily being ignited and rapidly consumed by fire. Flammables may be solid, liquid, or gas.

23
Q

Foam system

A

A firefighting system that provides for the delivery of a proportioned foam and water mixture for use in fire extinguishment.

24
Q

Halon system

A

A fire protection system that provides for the transfer of halogenated agents between fire extinguishers, supply containers, and recharge and recovery containers so that none of the halogenated agents escape into the atmosphere.

25
Q

Horizontal exit

A

A fire rated wall typically running from one exterior wall to another, used when stairwells in a multistory building (or exterior exit in a one-story building) are too far away for egress purposes. The wall effectively create two areas of safety on a given floor.

26
Q

Houseline

A

Class II standpipe system that supplies 100 GPM at 65 psi. Intended for use by building occupants.

27
Q

Inherent fire resistance

A

Flame resistance that is derived from an essential characteristic of the structural member.

28
Q

Initiating device

A

A system component that originates transmission of a change of state condition, such as in a smoke detector, manual fire alarm box, or supervisory switch.

29
Q

Listing

A

A compilation of fire rated assemblies that have been tested by a testing laboratory and found to meet the minimum requirements of the test standard.

30
Q

Manual dry standpipe system

A

Dry standpipe system that does not have a permanent water supply attached to the system.

31
Q

Manual wet standpipe system

A

Wet standpipe system connected to a small water supply for the purpose of maintaining water within the system or sharing a water supply with an automatic sprinkler system, but not having a water supply capable of delivering the system and demand attached to the system.

32
Q

Non-combustible

A

A material that, in the form in which it is used and under the conditions anticipated, will not aid combustion or add appreciable heat to an ambient fire.

33
Q

Peened

A

Forcible attachment of a thermocouple to a steel column or beam.

34
Q

Purge

A

Flow of air or an inert medium at a rate that will effectively remove any gaseous or suspended combustibles and replace them with air.

35
Q

Remote annunciator

A

Device indicating an off-standard or abnormal condition by both visual and audible signals.

36
Q

Semiautomatic dry standpipe system

A

Standpipe system that is attached to a water supply capable of supplying the system demand at all times and that requires activation of a control device to provide water at hose connections.

37
Q

Silence switch

A

When flipped, the fire alarm is silenced but still active.

38
Q

Smoke barrier

A

A one hour fire rated assembly that has also been designed and tested to minimize the migration of smoke.

39
Q

Smoke control

A

System that utilizes fans to produce pressure differences so as to manage smoke movement.

40
Q

Smoke developed

A

In the Steiner tunnel test, a calculation of smoke spread made by measuring the obscuration as the smoke passes a photoelectric cell placed in the stack from the test tunnel.

41
Q

Stairwell pressurization system

A

System that introduces positive pressure into a stairwell to provide a tenable environment within the stair tower in the event of a building fire.

42
Q

Standard time-temperature curve

A

The profile of the furnace temperatures that are dictated by the test standard NFPA 251, UL 263, and ASTM E-119.

43
Q

Standpipe system

A

An arrangement of piping, valves, hose connections, and allied equipment installed in a building or structure, with the hose connections located in such a manner that water can we discharged in streams or spray patterns through attached hose and nozzles, for the purpose of extinguishing a fire, thereby protecting a building or structure and its contents in addition to protecting the occupants.

44
Q

Steiner tunnel test

A

A common term that refers to NFPA 255, standard method of test of surface burning characteristics of burning materials.

45
Q

Thermocouple

A

An electrical temperature measuring device used in laboratory fire testing.

46
Q

Total flooding

A

Act and manner of discharging an agent for the purpose of achieving a specified minimum agent concentration throughout a compartment.

47
Q

Water flow switch

A

A switch that detects the movement of water in a sprinkler system and transmits a signal to the alarm system.

48
Q

Water mist system

A

Distribution system connected to a water supply or water and atomizing media supplies that is equipped with one or more nozzles capable of delivering water mist intended to control, suppress, or extinguish fires and that has been demonstrated to meet the performance requirements of its listing.

49
Q

Water spray system

A

Special fixed pipe system connected to a reliable fire protection water supply equipped with water spray nozzles for specific water discharge and distribution over the surface or area to be protected.

50
Q

Wet chemical system

A

An automatic fire extinguishing system that discharges a wet chemical agent.

51
Q

Zone

A

Defined area within a protected premises.

52
Q

Zoned smoke control

A

Smoke control system that includes smoke exhaust for the smoke zone and pressurization for all contiguous smoke control zones.

Building Construction (14 decks)

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