Fire 3 Final

Low-pressure carbon dioxide extinguishing systems can store ______ of carbon dioxide in one large pressure container.

60 tons

According to NFPA 11, standard for Low-, Medium-, and High-Expansion Foam, __________ Forms a flim barrier on the surface of a flammable liquid.

Aqueous film-forming foam

Which of the following classes involve ordinary combustibles?

Class A

In order to avoid corrosion, the foam concentrate tank must be made materials that are __________ with the foam concentrate?

Compatible

Which design utilizes walls, bulkheads, doors, partitions, draft curtains, high ceilings and sealed floor openings to create barriers?

Passive design approach

Which smoke control method creates holding areas for persons who are unable to exit a building without assistance in an emergency?

Refuge area presssurization

Who is responsible for the inspection, testing and maintenance of fire extinguishers to ensure that they will be in working order when needed?

The property owner

Which of the following is a myth that requires further education to dispel the public's opinion of automatic fire sprinkler systems?

They cause more damage than they are worth

What is the purpose of a conductivity test?

To make sure the extinguisher operator is safe from shock potentials on Class C extinguishers

Which of the following extinguishing agents can absorb more heat per pound than just about any other extinguishing material?

Water

smoke control and management systems must interconnect with all of the following systems except what?

intrusion alarm system

which of the following fire sprinkler system components provide a conduit for the water to flow from the water source to the fire sprinkler?

pipes and fittings

Which of the following has been commonly protected by fixed dry chemical extinguishing systems since the early 1950s?

self-serve fuel-pump stations

Wet pipe system

type of sprinkler head is covered with a factory-applied paint or finish that is usually required by an architect, an interior designer, or a developer to achieve a certain look in a building.

In the last 25 years, it has become mandatory that emergency responders be able to _________ from the fire command center.

unlock all doors simultaneously

Open sprinkler heads

used for deluge sprinkler systems in which water must flow from all heads over a large area without waiting for heat to activate them

Which system is a fixed fire protection system that discharges a very fine spray with water droplets that must be 1000 microns or less in size?

water mist system

After how many years should dry chemical agent in stored-pressure containers be replaced to ensure that the system is fresh and ready for operation?

5 years

At how many feet does the smoke level need to be held above?

6 feet

Automatic fire sprinkler system

A network of underground and overhead piping fed by an automatic water supply, that upon activation, uses devices connected to the piping at specific intervals to apply water over a fire area

Which design approach uses mechanical systems to exahust, pressurize, and in particular situation oppose the smoke with forced air?

Active design approach

what is considered to be the main component of the aerosol extinguishing system?

Aerosol generator

which of the following components are used to store wet or dry chemical agents, and are made of metals that will not react with the agent?

Agent storage containers

Creating what between affected fire areas and surrounding unaffected non-fire areas, particularly egress paths, can result in effective smoke control?

An adequate pressure differential

Wet chemical extinguishing agents use water-based solutions mixed with any of the following agents of additives, except;

Aqueous film-forming foam

Which extinguishing agent is effective on Class B and C fires, but has limited use on Class A fires?

Carbon dioxide

After carbon dioxide extinguishing system has discharged, ________ remains in the environment after the carbon dioxide liquid has converted to a gaseous state and the fog created has dissipated, maintaining a non-ignitable environment.

Carbon dioxide gas

Which extinguisher has both the pressurized expelling gas and the extinguishing agent mixed in the same tank?

Cartridge pressure extinguisher

Which fire extinguisher has a pressurized cartridge that, when activated, releases the pressure into the extinguishing agent tank, forcing it out a nozzle or hose?

Cartridge pressure extinguisher

some of the classes of fire extinguishers have numbers in addition to their letter classification. Which of the following classes has a number before its letter?

Class B

Which of the following classes of fire involves cooking media that use combustible vegetable or animal oils and fats?

Class K

which classification of fire extinguishers involves energized electrical equipment?

Class c

Carbon dioxide is very effective on which two classes of fire?

Classes B & C

After determining the occupancy and combustibility, the system design must deliver enough water to absorb the energy from the fire and is based on what?

Energy output

Which of the following is not to be recorded when testing at the functional level and integrated performance level?

Fire department response time

Which system would be the strongest contributor to smoke movement?

HVAC systems

Which activation of smoke control is not recommended and is rarely done due to potential for malicious activation?

Manual fire alarm box

What type of key is used to open an emergency building entrance system?

Master key

which components of a water spray fixed system are very important and available in automatic or open configurations?

Nozzles

Which type of sprinkler head could be oriented to discharge water up and down with 40 to 60 percent of the water initially flowing downward upon activation?

Old-style sprinkler head

A mechanical system that pressurizes areas of a building with fans to limit smoke movement when there is a fire?

Smoke control

Which smoke control method is best suited for large volume spaces, such as atrium, indoor stadiums, airport terminals, and indoor malls?

Smoke removal

which type of extinguishing system protects commercial kitchen appliances and the associated duct work, exhaust hoods, filters, and plenum chambers?

Wet chemical extinguishing system

Which of the following does not indicate a need to install a specialized water-based fire protection system?

When the appropriate system is outdated and needs replacement

What color is ammonium phosphate?

White

Carbon dioxide

a colorless, odorless, noncombustible, nonconductive gas that exists the air at a very small yet detectable level.

which of the following extinguishing systems offer an alternative to clean agent and specialized water-based fire protection systems

aerosol extinguishing systems

a wet or dry chemical systems initiates an upon activation

alarm signal

No mater the pipe size, a flow rate of ______________ will provide the necessary volume to remove any debris in the line.

all of the above

interior exit stairway doors must be able to open on ________ without any special knowledge, effor, or key

both sides

The final approved report outlining all final component, individual funcitonal, and integrated system performance tests must be located in the:

buildings fire control room

Dry sprinkler heads

can be installed in environments where the temperature cannot be maintained at 40 degrees Fahrenheit or higher

which of the following in a class of fire upon which clean agents are not effective?

class d

Because ____________ can stay in the atmosphere for many years and require substantially more agent to protect an area that halon does, product and system manufacturers do not recommend discharge tests.

clean agents

All of the following are protection objectives of fixed automatic foam systems except what?

directing

_____________ extinguishing agent is make up of small solid particles propelled by a pressurized gas that covers the burning material and decreases the oxygen concentration

dry chemical

Which of the following extinguishing agents is effective on Class D fires and eliminates oxygen forming a crust on the materials and depleting the available oxygen

dry powder

To address concerns that criminals or terrorists might activate fire protection systems to unlock doors and gain unauthorized entry, international building code, referred to as:

electromagnetically locked egress doors

prior to conducting a discharge test for halon and clean agent extinguishing systems, what must be accomplished in order to determine the amount of leakage from the protected area?

enclosure integrity test

How often should fire extinguishers have a visual inspection to ensure readiness and serviceability?

every 30 days

a portion of the means of egress separated from the other parts of the building or structure by fire resistant or fire-rated construction to provide a protected path to the exit discharge

exit

Which of the following components of the means of egress is the portion that leads to the exit?

exit access

Which of the following systems uses the same basic components as an automatic fire sprinkler system and may be a preprimed system?

foam water sprinkler system

The __________ is a mechanical device that is used as an automatic activation device for wet or dry chemical extinguishing systems

fusible link

which fire sprinkler components help fire fighters, sprinkler system contractors, and building maintenance workers determine the available water or air pressure at the gauge location?

gauges

Which of the following is considered a clean agent to replace halons, thereby easing the environmental concerns and potential toxicity of the halon?

halocarbon

Which of the following can stand alone, supplement fire extinguishers, or supplemental fixed dry chemical systems?

hand hose line system

which of the following valves is not part of a fire sprinkler system?

hydrant valve

In which of the following areas might a water mist system be installed

in underground mass transit systems

Which delivery system is the best for delivery halon 1211, since the agent expands as a mixture of liquid droplets and vapor upon discharge?

local application system

which system protects a specific area, piece of equipment, process, or operation depending on the hazard?

local application system

Which of the following activation methods is not used to discharge the carbon dioxide extinguishing system

manually by a fire alarm communication center

How often should the owner or a representative visually inspect the extinguishing system for conditions that could cause failure of, or inhibit, operation

monthly

All of the following documents must be kept on site for fire department use and may be contained in a separate box from the keys, except

occupant rental agreements

Saponification

occurs when the extinguishing agenet reacts with the cooking oil to form a soapy foam blanket that provides separation between oxygen and fuel

Which of the following are considered to be typical impairments of a specialized water-based fire protection system?

painted sprinkler heads

which type of fire sprinkler head is installed with its deflector pointing down toward the floor?

pendant sprinkler head

Which type of fire extinguisher requires manual operation, creating the necessary pressure in the tank to expel the extinguishing agent?

pump extinguisher

dry chemical extinguishing agents are not considered to be dangerous or toxic, although ___________ can occur once it is expelled from the system

respiratory problems

Passive and active systems used alone of in combination to alter smoke movement

smoke management

Which system prevents or reduces smoke intrusion into egress stairways, so occupants can use the stairs to exit the building

stairway pressurization

inspection, testing, and maintenance are the same for specialized water-based fire protection systems as they are for:

standard fire sprinkler systems

which of the following is true of the condensed generator and the dispersed generator for aerosol generation?

the dispersed generator already contains the chemical agent

Which of the following is not a model code requirement for delayed egress locks

the door must automatically relock once opened

Ornamental sprinkler head

this type of sprinkler head is covered with a factory-applied paint or must finish that is usually requested by an architect, an interior designer, or a developer to achieve a certain look in a building.

Which carbon dioxide delivery system protects enclosed hazards, rooms, and areas within a structure by filling the entire enclosure?

total flooding system

which system protects enclosed hazards and areas within a structure, such as in paint spray booths?

total flooding system

limiting a persons ________ minimizes a person exposure to a fire condition before reaching an exit.

travel distance

Which system has fans that pump air into the hoistway, creating a pressure barrier that is slightly higher than the areas outside

Elevator hoistway pressurization

What can be placed outside of a structure to provide responding fire fighters with keys, access cards, and codes to locks and keypads?

Emergency building entrance system

Which type of hazard does a fixed automatic foam system protect?

Flammable and combustible liquids

What needs to be done before a fire sprinkler system is connected to any water source and should be continued until the water flow is clear?

Flushing

Which extinguishing agent is a mixture of agents that, when applied, reacts with the fat in the cooking medium and develops a soapy foam blanket?

Foam

what is an effective agent to meet all of the protection objectives for flammable and combustible liquid hazards?

Foam

Since many manufacturers do not combine the wet chemical agent and expelling gas, which of the following are used to store the expelling gas until it is needed when the system activities?

Gas cartridges

Which gaseous agent is a mixture of carbon and one or more elements from the a halogen series (fluorine, chlorine, bromine, or iodine)?

Halon

which element of a fire sprinkler head is attached to the frame of the sprinkler head and holds the orifice cap in place until it is released at the critical activation temperature?

Heat-sensitive element

what may result from component failure, environmental conditions, damage carelessness, or insufficient inspection, testing or maintenance?

Impairments

Where did most of the earliest requirements to install fire sprinkler systems came directly from who?

Insurance companies

Which fixed foam system component is designed so that when water moves across an open orifice within the device, it creates lower pressure that draws foam concentrate into the water stream?

Venturi proportioner