HR Office Flashcards
Two-way communications between fire command and:
WAMEE PUMP
- Warden stations
- Air handling control rooms
- Mechanical control center
- Elevators
- Elevator machinery rooms
- PUMP room (fire)
Elevator landing detectors, HVAC detectors, and Sprinkler water flow alarms will:
- Sound the fire alarm on FIRE FLOOR AND FLOOR ABOVE.
(2008 building code alarm will sound on floor below also) - Cause fire alarm signal to be TRANSMITTED to FD via central station
- Cause fire alarm signal to be SOUNDED at fire command station, mechanical control center and the regularly assigned location of fire safety director.
- Stop the air supply into and the return air from the FLOOR WHERE ACTIVATED
- Activate air exhaust fans and dampers in the smoke shaft or pressurizing fans in stairs enclosure.
- UNLOCK the doors on the locked fail safe system.
Which of the following will not automatically recall the elevators?
- elevator landing detectors
- sprinkler water flow alarms
- HVAC detectors
HVAC detectors WILL NOT
First Ladder Company obtain information from fire safety director
SEAL
Status of elevators
Evacuation procedures implemented
Access stairs SERVING THE FIRE FLOOR
Location of fire
First Ladder Company
Prior to leaving the lobby:
- Obtain floor plan of fire area
- if only one copy, leave it at fire command station - Ensure ICP is staffed by a FD MEMBER
First ladder company
True or false
Ladder Officer does not need to consult with engine officer when selecting attack stair in high rise office.
True
Also stairway MUST have a standpipe
This differs from other buildings
HRFPMD* - officers consult and stairway does not need to have a standpipe
LRFPMD - LCO selects attack stair and notifies IC and ECO
Class 2 - officers must communicate and choose correct
Which stairway does the third ladder company take to the floor above?
Any stairway other than the attack stair
Which company determines what is the best stairway to be used by occupants for evacuation and advises the ICP?
Third ladder company
The third ladder company examines the floor above the fire and reports to the ICP the presence of access stairs…
Down to the fire floor and up to the floor above
Who advises the first arriving ladder company or the fire sector supervisor or fire branch director to withhold the attack if difficulty is encountered in clearing the attack stair of occupants?
Third Ladder company
Who orders roof ventilation?
INCIDENT COMMANDER
does not have to be a chief
Who conducts a primary search of the top 5 floors?
Fourth ladder company
4th due Truck
A logical assignment after roof operations would be the:
Upper floors of the elevator bank servicing the fire floor
Fourth Ladder company operates under
SAE Group Supervisor
When fire safety director is not present in Class E office building occupied by less than 100 people Above or Below street level OR by less than 500 people in the Entire Building, an employee trained by fire safety director will staff the fire command station and execute fire safety plan.
BUILDING EVACUATION SUPERVISOR
Fire Dampers are used to:
restrict passage of heat
Fire Sector or Branch is defined as:
fire floor AND THE FLOOR ABOVE
not floor below
Mixing dampers:
dampers in the HVAC system which control the mixing of the RETURN AIR and the OUTSIDE AIR
What is the sky lobby?
an elevator terminal point on an UPPER FLOOR of a building where passengers can change from one bank of elevators to another.
Where is the Forward Staging Area?
Floor BELOW the Fire Sector/Branch
Where is the Search and Evacuation Group or Branch?
ABOVE the Fire Sector/Branch
Class E built before 1945:
- “Heavy Weight” - 20 to 23 pounds per cubic foot
- structural steel components ENCASED IN CONCRETE
- Exterior walls were Masonry construction
- Exterior walls were Substantially Tied to all floors
- Plenum type ceilings are generally NOT Found
- normally steam heated
- usually Not centrally air conditioned
- EXTERIOR WINDOWS WERE OPENABLE
- All buildings erected between 1938 and 1968 were required to have a fire tower. some built prior to 1938 have fire towers
- floors reinforced concrete
- Core construction techniques were NOT USED.
Class E built between 1945 and 1968:
- “MEDIUM WEIGHT” - 10 to 20 pounds per cubic foot
- Fire Towers Were Required
- a mix of pre 1945 and post 1968
Class E built after 1968:
- “LIGHTWEIGHT” - 8 to 10 pounds per cubic foot.
- LACK OF COMPARTMENTATION
- Protection of the structural steel component is usually done by Spraying on a Fireproofing Material
- Exterior walls are CURTAIN WALLS (combo of glass and metal)
- method of securing exterior curtain walls leaves a Space of 6 to 12 inches which requires additional fire stopping
- ceiling plenum are extensive and lack fire stopping.
- usually heated by HVAC
- HVAC systems are Usually Multi-Floor Systems
- Exterior windows are usually NOT OPENABLE
- Fire towers NOT required
- Floors light in weight consisting of lightweight concrete, “Q Decking”
- CORE CONSTRUCTION USED EXTENSIVELY
Supply System of the HVAC:
- Air is distributed to the floors via the Supply AirShaft (SAS)
- Air from SAS distributed on each floor by ducts, found in the plenum.
- Fire Dampers will be found in these ducts where the Ducts Meet the SAS and wherever they Pass Thru A Rated Fire Partition.
- Air from the supply ducts is distributed to occupied areas by air diffusers in ceiling.
Return System of the HVAC:
- air from occupied areas flows through the return collectors into the plenums.
- air flows through the plenums to the Return AirShaft. (Return Air in Plenums is NOT Ducted)
- Fire Dampers will be found where the Air Enters the Return AirShaft from the plenum on each floor and wherever the Air Flows Thru A Rated Fire Partition.
- Air is then return to the processing equipment via the return airshaft.
When determining the status of all HVAC systems in the building, are they shut down automatically or manually?
Any systems that have not been automatically shut down shall be manually shut down. Includes BOTH the Supply and Return Fans
Before any further action can be taken with the HVAC system…
the Fire Floor must be accurately determined.
How do you place the HVAC system in non-circulating mode?
code Open, Close, Open - Don’t Mix
- Open all Outside Air Supply Dampers
- Close all Mixing Dampers
- Open all Exhaust Dampers
How is fire able to spread from one floor to another in a class E building?
thru Flexible Connectors between the ducts and the Periphery air treatment equipment on the floor above when these flexible connectors fail.
the 1968 building code requires a manual fire pump to supplement the standpipe system in buildings _________
301 feet high or more