PDX_32_Fire Vocab

Question 0

Walls the divide a single building into two or more “buildings”, if either side collapses the wall will not for the duration of it’s rating

Answer 0

Firewalls

Question 1

Heat/light energy that is released during a chemical reaction

Answer 1

Fire

Question 2

Make up rated assemblies/enclosures (e.g.: shafts, exiting closers, exit passageways, horizontal exits, atriums, mixed-use occupancy separation)

Answer 2

Fire barriers

Question 3

Openings through floors/ceilings connecting adjacent floors. One hour rated one connecting less than four stories, or two hours passing through a two hour floor assembly or us connecting four or more stories

Answer 3

Shaft enclosures

Question 4

Demising walls separating tenants, residential units, corridor walls

Answer 4

Fire partitions

Question 5

Collection of airborne solid and liquid particles in gases emitted when material combusts

Answer 5

Smoke

Question 6

Used as required to prevent the movement of smoke, have a one hour fire resistance rating

Answer 6

Smoke barrier

Question 7

Like a smoke barrier, but does not have to resist fire

Answer 7

Smoke partition

Question 8

Consisting of or made of material that will not burn if exposed to fire

Answer 8

Incombustible

Question 9

Fire resistance rating (One or two hours) applied to floor and roof construction

Answer 9

Horizontal assemblies

Question 10

Ability to exit a structure in an emergency

Answer 10

Means of egress

Question 11

Location in the building where fire and smoke or excluded, and used to contain occupants during a fire or emergency or until safe to evacuate. Has a steady supply of outside air, passive fire protection, electrical integrity/emergency lighting, to a communication/call box to 24 hour manned, or outside line

Answer 11

Area of refuge

Question 12

Values for how long a separation can resist the passage of fire. Stated in terms of hours and can be increased with use of sprinklers.

(E.g.: walls, doors, floors, windows, etc.)

Answer 12

Fire resistance

Question 13

Measures the amount of flame and smoke a material generates.

E.g.: carpet, fabrics, etc.

Answer 13

Flame spread rating/

smoke developed ratings

Question 14

Normal concentration of oxygen in the air:

Answer 14

21%

Question 15

Fire stages:

Invisible particulate matter like combustion gases given off but no flame is visible, nor any smoke/heat generated. Sensors detect gas.

Answer 15

First stage:

Incipient

Question 16

Fire stages:

Large particles become visible as smoke, but no visible flame or appreciable heat. Sensors are photoelectric.

Answer 16

Second stage:

Smoldering

Question 17

Fire stages:

Appreciable heat is not immediately present, but follows very quickly. Sensors detect flame.

Answer 17

Third stage:

Flame

Question 18

Fire stages:

Uncontrolled and rapidly expanding air is present and flames and smoke become major hazards. Smoking elation ultimately causes most injuries. Sensors detect heat.

Answer 18

Fourth stage:

Heat

Question 19

Goal is to contain a fire and limit the spread so people can escape and to protect other parts of the building that weren’t originally subject to fire.

Answer 19

Compartmentation

Question 20

Separation is required:
– Between different occupancies
– At structural members, they were isolated to protect from fire exposure
– Depending on occupancy out walls, floors, and ceiling that separate compartments (a.k.a.: spaces)
– At parts of the building where the max allowable Area is exceeded
– At all openings (EG: doors, windows, ducts) through rated walls, closed with approved fire rated devices
– At exterior walls so to avoid fire spread to other structures

Answer 20

Compartmentation

Question 21

The most important part of fire protection because smoke moves so rapidly.
Moves in ways that fire can’t, beyond location.
By natural convection between cool and warm air.
goal is to contain, exhaust, and dilute smoke.

Answer 21

Smoke control

Question 22

A system of barriers arranged to limit the migration of smoke

Answer 22

Passive smoke control

Question 23

Automatic smoke and heat vents must be used in:

Answer 23

F and S occupancy.
=One story over 50,000 ft.²

H occupancy.
= One single floor area over 15,000 ft.²
Or, over Stages more than 1000 ft.²

Question 24

And engineered system that uses mechanical fans to produce pressure differentials a crossbow barriers or to establish air flows to limit and direct smoke movement.

Answer 24

Active smoke control system

Question 25

– Open doors with automatic closing devices.
– Supply and return air ducts to the fire zone shot down.
– Exhaust to the outside air is turned on creating negative pressure.
–In places of refuge, return and exhaust Air ducts are closed and supply air is forced into a space creating a positive pressure.

Answer 25

Active smoke control system

Question 26

A required exit which consists of the vestibule and continuous stairway and close from the highest point to the lowest point by to our walls and which exit into a public way or exit passage leading to one

Answer 26

Smoke proof enclosure

Question 27

Pressurized to prevent smoke from entering them

Answer 27

Stairways

Question 28

– Pressurize slightly higher than the fire floor, but less then the stairway.
– Provides double protection of the stairway, and creates a place of refuge.
– Standpipes and fire department communication located.
– Supply fresh air to a smoke-free stare entry from the top or bottom is not advisable because is too likely that open doors near the source deplete fresh air for the rest of the stair.

Answer 28

Vestibules

Question 29

Passive fire protection products to used in HVAC systems that prevent the spread of fire inside the ductwork through fire resistant rated walls and floors. When a rise in temperature occurs, fire dampers close.

Answer 29

Fire dampers

Question 30

Legal restrictions governing the types of activities that may take place on a given piece of land begin with:

Answer 30

Local zoning ordinances

Ex: setbacks, number of parking spaces, floor area ratio, fire zone

Question 31

Was telling code to North America are based on the:

Answer 31

Model building code

In US, international building code

Question 32

The IBC begins by defining:

Answer 32

Occupancy groups,

To distinguish various degrees/qualities of need for safety in a building.

Question 33

IBC occupancy groups:

Theaters, auditoriums, lecture halls, nightclubs, restaurants, houses of worship, libraries, museums, sports arenas, etc.

Answer 33

A1 – A5

Assembly occupancy

Question 34

IBC occupancy groups:

Thanks, admin offices, higher education facilities, police/fire stations, post offices, etc.

Answer 34

B

Business occupancy

Question 35

IBC occupancy groups:

K – 12 schools and day care facilities

Answer 35

E

Educational occupancy

Question 36

IBC occupancy groups:

Industrial buildings

Answer 36

F

Industrial occupancy

Question 37

IBC occupancy groups:

Toxic, combustible, or explosive materials present

Answer 37

H1 – H5

High hazard occupancy

Question 38

IBC occupancy groups:

Healthcare, geriatrics, or other spaces where occupants would not be able to save themselves during a fire/emergency

Answer 38

I 1 – I 4

Institutional occupancy

Question 39

IBC occupancy groups:

Stores, markets, service stations, sales rooms

Answer 39

M

Mercantile occupancy

Question 40

IBC occupancy groups:

Apartment buildings, dorms, frat/sororities, hotels, what are two family dwellings, assisted-living facilities

Answer 40

R1 – R4

Residential occupancy

Question 41

IBC occupancy groups:

Storage of hazardous materials

Answer 41

S1

Storage occupancy

Question 42

IBC occupancy groups:

Storage of low hazardous materials

Answer 42

S2

Storage occupancy

Question 43

IBC occupancy groups:

Agriculture buildings, carports, green houses, sheds, stables, fences, tanks, towers, other secondary buildings

Answer 43

U

Utilities/miscellaneous occupancy

Question 44

After occupancy buildings are classified by different:

Answer 44

Construction types

These prescribed the fire resistant ratings of the elements and the exterior wall