Jlu Fire Safety (Bs)

Front 1

What are the characteristics of a Fire-Wall and where are they used?

Back 1

Used to seperate a single structure into seperate construction types or to allow for area increases by creating esentially seperate building that are actually attached.
2-4 hour rating
Must extend continuous from foundation to or through roof.
Must be designed so one structure can collapse and leave the other standing.

Front 2

Standpipes are required in bldgs ____ or more stories high and those exceeding ____ ft

Back 2

4 or more stories
150'

Front 3

When all materials reach combustion temperature at once, this is called...

Back 3

Flashover

Front 4

Sprinkler heads typically activate at a temperature between ________

Back 4

135 and 170
Flow detectors are placed on each zone. When a sprinkler head is activated, the detector senses flow and sends a signal to an annunciator panel or fire control center so the firefighters know where the fire is.

Front 5

Class 1 (Dry standpipe)

Back 5

A dry standpipe without a directly connected water supply, and equipped with 2-1/2" outlets for use by fire dept. personnel

Siamese fitting at street

Front 6

Class 2 (Wet Standpipe)

Back 6

What class am I?
A wet standpipe directly connected to a water supply, and equipped with 1-1/2" outlets and hoses intended for use by building occupants

Front 7

Class III (Combintation System)
A combination system directly connected to a water supply and equipped with both 1-1/2" and 2-1/2" outlets

Back 7

A combination system directly connected to a water supply and equipped with both 1-1/2" and 2-1/2" outlets

Must be installed in the floor level if the highest story is more than 30'above the lowest level of fire dept. vehicle access, or where the lowest story is more than 30' below the the highest level of fire dept. access.
4 exceptions allow class I standpipes to be used
1. If the bldg is equipped with a sprinkler system
2. Open parking garages less than 150' high
3. Open parking garages subject to freezing
4. basements that are sprinklered

Front 8

Name the 4 types of fires and corresponding extinguishers.

Back 8

Class A - Paper, wood, cloth (water)

Class B - Gasoline, Solvents, paints, greese, flamable liquies (Smother, Carbon Dioxide, Foam, halogenated agents)

Class C - Electrical Equipment (Nonconductive agents, Dry Powder)

Class D - Combustible Metals (MEEB IT)

Front 9

If a wet standpipe is installed, every point on every floor must be within how many feet of a connection?

Back 9

130'
The hose is 100' long and every point on the floor must be reached by a 30-foot spray from that hose.

Front 10

Used to give instructions to building occupants. These are used by firefighters or others authorized to assist with evacuation efforts.

Back 10

Annunciators

Front 11

Building Code Fire Codes

Back 11

- protect people area of refuge

-protect structure integrity

-protect building from damage

-prevent fire

Front 12

Exit Codes

Back 12

width of stairs= occupent X .2 (Minimum f 44")

Within 100' of any point in a building of 200' if sprinklered

exit doors = occupent X .15 (Minimum 36")

Stair fire wall construction:

2 Hr type 1 snd 2 construction

1 Hr all other types

Front 13

Fire Detectors

Back 13

Ionization: Sense the chemical products of compbustion (can be visible or invisible to a person) Can dectect cigerette or kitchen fire smoke

Photoelectric: light beam broken by smoke (not as fast as Ionization. But less chance of false alarm)

Heat Accuated: Basic type; a wax melts and sets off dectector

Front 14

Sprinkler System Types

Back 14

Wetpipe: single head activation; water in pipes at all time

Drypipe: compressed air in pipes; single head activation; slower reaction time as air needs to escape the system

Pre-action: Two sensors to activate one at head and one at secondary location independent of sprinkler heads

Deluge: All go off at same time in single zone when one head is activated