Fire 206 final

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

How many Btus of energy in the form of heat can be absorbed by 1 gallon of water?

8000

At what pressure should carbon dioxide be stored to be considered high-pressure storage?

850 PSI

At the time of the origin of the NFPA in 1895, there were _____ different fire sprinkler system design and installation standards within ____ miles of Boston, Massachusetts.

9; 100

Which of the following is the least desirable access method as it may cause fire fighters to lose valuable time?

Access codes and access cards

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

Agent storage containers

In which of these standpipe systems does water enter the piping only when a valve is opened and the air pressure drops to a particular level?

Automatic dry standpipe

Which of the following is 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?

Automatic fire sprinkler system

Which of these systems contains water in the pipe at all times and is required to supply sufficient quantities of water to support manual firefighting operations?

Automatic wet standpipe

Which of the following is NOT one of the three general categories of dry chemical extinguishing agents?

Baking soda-based

Which of the following is a colorless, odorless, noncombustible, nonconductive gas that exists in the air at a very small yet detectable level?

Carbon dioxide

Which of these types of fire is used in cooking appliances?

Class K

Which of these describe a system of rules, regulations, or laws that are usually put into effect by government and have statutory authority to be enforced?

Codes

Which of these describes a chemical reaction in which a combustible material and an oxidizing agent produce heat or energy and other products that promote a self-sustaining process?

Combustion

What is considered a direct loss?

Computer loss due to electrical fire.

Which of the following forms of heat transfer occurs from one body to another through a medium such as a liquid or gas?

Convection

In which stage of the NFPA code development process does the council review all activities associated with the decisions to ensure that procedures and rules were followed and the process was fair throughout?

Council Appeals and Issuance of Standard

When new construction is being done in an existing building, what code requirements must be followed in the area of the building where the construction is taking place?

Current code requirements

Which of the following is used for deluge sprinkler systems in which water must flow from all heads over a large area without waiting for heat to activate them?

Open sprinkler heads

Which of the following is considered to be a typical impairment 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 of the following is a valve with a freestanding post that houses the stem extension of an underground valve control, in which the position of the valve is shown in a small window?

Post indicator valve

Which type of indicating valve has a stem that rises and falls as the control wheel is turned, and the valve is open when the threads are fully extended?

Post indicator valve

Which of the following is similar to dry pipe sprinkler systems in that it uses closed sprinkler heads and usually releases water into the system through activation by fire detector?

Preaction system

What type of key, with a jurisdiction-specific pattern, is used to open an emergency building entrance system?

Proprietary key

Which of these systems is similar to the siren sensor system but instead of the siren, the emergency responder's radio is used.

Radio frequency sensor

Which term refers to the pressure exerted on a water supply system when water is flowing?

Residual pressure

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

Saponification

What type of door has installed security devices that may involve a magnet or pin that penetrates the doorframe or floor?

Sensor release egress door

When a fire begins to subside to the point at which the available fuel is exhausted or the oxygen level drops below 16 percent, it has reached which stage of fire?

Smoldering/decay stage

Which of the following is defined as the pressure exerted on a water supply system when there is no water flowing?

Static pressure

Which of these steps of the International Code Council code development process can be presented by anyone and must be received by the announced due date within the review cycle to be considered?

Submit Code Changes

In which stage of the NFPA code development process is a Notice of Intent to Make a Motion filed if someone is not satisfied with the results of the second draft report?

Technical Meeting

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

The door must automatically relock once opened.

How many days before the public comment hearing do the published results become the agenda for the public comment hearing and are distributed on the International Code Council website?

Thirty - Forty-five days

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

Total flooding system

System hardware for electrically locked egress doors are required to be listed in accordance with ____________________ requirements.

UL 294.

What system must operate and apply water to the hazard within 100 milliseconds of flame detection?

Ultra-high-speed water spray fixed system

In the 1900s, which of the following organizations developed a method of classifying or categorizing fires on the basis of the extinguishing agent that was appropriate for the type of fire?

Underwriters Laboratories

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

Venturi proportioner

Which type of valve would be the best alternative when a freestanding PIV is impractical or impossible to install, yet direct access to a valve is critical?

Wall post indicator valve

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

Which of these extinguishing systems protects commercial kitchen appliances and the associated ductwork, 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 test is NOT accomplished on a deluge or wet sprinkler system?

air test

Wet chemical extinguishing agents use water-based solutions mixed with any of the following agents or additives, EXCEPT:

aqueous film-forming foam.

Interior exit stairway doors must be able to open on _______ without any special knowledge, effort, or key.

both sides

After the 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 nonignitable environment.

carbon dioxide gas

Which of the following is used to prevent water from flowing out of the fire protection system back into the water supply system?

check valves

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

class D

The International Code Council and the NFPA devote all of their time and effort to the ______, making it cost effective for governments to adopt the model codes.

development process

To address concerns that criminals or terrorists might activate fire protection systems to unlock doors and gain unauthorized entry, another method of controlling doors was placed in the model codes by the International Building Code®, referred to as:

electrically locked egress doors.

Which of the following is the 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

The effect of convection is directly influenced by the size and shape of the:

fire compartment.

Which of the following describes a mechanical device that is used as an automatic activation device for wet or dry chemical extinguishing systems?

fusible link

At which stage will a fire survive by consuming the air and materials necessary to generate the flammable gas and sustain combustion?

growth stage

Under the NFPA's commonly used color coding system, which color is used for a hydrant that provides 1500 gallons per minute or greater?

light blue

If the standpipe system has an automatic water supply or is part of a combined system, a _______ should go to the exterior of the building and provide a means to safely remove the system water so it will not be a hazard.

main drain

The model codes are the ______ acceptable level of performance or risk, and therefore there may be an instance in which the code is not adequate for the circumstances.

minimum

Where required, all of the following documents must be kept on site for fire department use, EXCEPT:

occupant rental agreements.

Which of the following fire sprinkler system components provides a conduit for the water to flow from the water source to the fire sprinkler heads?

pipes and fittings

With a(n) __________ system, the amount of suppression agent, pipe size and length, number of fittings, nozzle types, and flow rates are determined by factory and laboratory testing.

pre-engineered

The use of a sensor to detect an emergency vehicle's _________ is one of the most commonly used detection and access systems.

siren

Limiting _________ minimizes a person's exposure to a fire condition before reaching an exit.

travel distance

Emergency responders must be able to _________ from the fire command center.

unlock all interior stairway doors simultaneously

Which of the following is one of the reasons for failure of smoke alarms?

Dead batteries

What type of lock is permitted in certain facilities and prevents clients or occupants from opening an exit door without staff noticing?

Delayed egress lock

What type of fire is the most recognizable, can be seen by lighting a match, and requires the presence of a combustible gas because the visible flame is a gaseous reaction?

Diffusion flame

Which of the following is NOT a primary determination for whether fire protections systems are required?

Distance to the closest firehouse

Of the different piping used to make up a supply network, which type of piping supplies a number of smaller areas within the system?

Distribution mains

Aside from protecting human life, why would a building owner install a fire protection system to protect the structure and the contents?

Doing so makes good business sense.

Which of the following hydrants is designed for use in cold climates where freezing is a problem?

Dry Barrel

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

Emergency building entrance system

Before 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

Width of exit in inches / .02 inches per person... is a model formula for what?

Exit Capacity

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

Exit access

Which portion of the means of egress is between the exit and the public way outside of a building?

Exit discharge

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

Flammable and combustible liquids

In which transition stage does the temperature in a room or space reach a point at which all of the surfaces of the room or space simultaneously ignite, immediately leading to full room involvement?

Flashover stage

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 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

Which of these materials is ideal for heat transfer through conduction?

Heavy, dense material

Which of the following stages of fire occurs when the heat source, fuel, and oxygen come together to generate more heat than is dissipated, thus promoting the uninhibited chain reaction?

Incipient stage

As a condition of their policy, which person or organization(s) requires commercial and industrial building owners to install some type of fire protection system?

Insurance companies

What access system is used as a backup to the siren sensor if it fails to detect the siren?

Key switch

OSHA's requirements for Emergency Action Plans (29 CFR 1910.38) include all of the following EXCEPT:

Labor negotiation recommendations.

What is the most important reason that a business may maintain a loss control program?

Life safety

Of the four approved delivery systems for carbon dioxide, which one protects a specific piece of equipment, process, or operation by discharging carbon dioxide directly onto the hazard?

Local application system

The magnitude of loss that is reasonably possible to occur at some point is referred to as ______________?

Loss Potential

Which of the following standpipe systems has atmospheric air in the pipe and can be used only by connecting a water source to the fire department connection?

Manual dry standpipe

Which of the following systems contains water in the pipe at all times; the water is typically supplied from the building's domestic water system, not from a dedicated fire service line?

Manual wet standpipe

Which of the following refers to a system of rules, regulations, or laws typically developed by private, not-for-profit organizations?

Model code

Which of these types of codes attempt to achieve a balance between the hazards posed by the structure itself; the combustible contents; the floor areas above and below ground level that challenge manual firefighting efforts; and the cost of construction?

Model construction

Which NFPA standard covers the design, installation, inspection, testing, and maintenance of fixed, semi-fixed, and portable foam extinguishing systems?

NFPA 11

There are three NFPA standards that relate to fire sprinkler design and installation standards. Which of the following is NOT one of those three NFPA standards?

NFPA 13S

Which NFPA standard establishes the basis for standpipe design, installation, use, water supply, and outlet size requirements?

NFPA 14

Which NFPA standard covers the design and installation of foam-water sprinkler and foam-water spray systems?

NFPA 16

Which of the following organizations was NOT a part of the merger to become the International Code Council in the mid-1990s?

National Fire Protection Association (NFPA)

In order to determine if the water delivery system is adequate for manual firefighting, what must the engineers calculate?

Needed fire flow

According to NFPA 14, what is the maximum height that a fire department connection may be located above the adjoining ground, sidewalk, or grade surface?

48 inches

What is the minimum design pressure (in pounds per square inch) for a standpipe system at the hydraulically most remote 2½-inch hose valve outlet?

100 psi


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