fire protection systems midterm
The importance of the ________ test cannot be overstated, as a fire alarm system is only as good as its installation.
acceptance
Which type of signal should spur occupants to immediately leave the building, call the fire department, or take other appropriate action to ensure life safety?
alarm signal
Data compiled by the NFPA between 2007 and 2011 revealed that certain occupancies equipped with ________ had an average fire loss that was between 31 and 76 percent less than properties without these systems.
automatic fire sprinkler systems
which fire extinguisher type has a pressurized cartridge that, when activated, releases the pressurized gas into the extinguishing agent tank, forcing it out of a nozzle or hose
cartridge pressure extinguisher
Which system establishes a high level of service to ensure timely, efficient, and appropriate handling of any issue related to a fire protection system at a protected property?
central station service fire alarm system
some of the classes of fire extinguishers have numbers in addition to thier letter of classification, which class has a letter before its number
class B
which class of fire extinguishers involved energized electrical equipment
class C
which class of fires involve electrical equipment
class C
which class of fires involve combustible metals that require a dry powder extinguishing agent
class D
which class of fire involves cooking appliances using combustible vegetable or animal oils and fats
class K
which of the following classes of fire involves cooking media that uses combustible vegetable or animal oils and fats
class K
Which of the following systems consists of fire warning equipment, burglar alarms, medical alert, and other sensing equipment such as carbon monoxide detectors?
combination detectors
a chemical reation in which a combustible material and an oxidizing agent produce heat or energy and other products that promote a self sustaining process
combustion
which form of heat transfer occurs from one body to another through a medium such as a liquid or gas
convection
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
this 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
To ensure utilization and adoption of the best methods, standards, and practices, the authors of the model codes reference which of the following to meet the required performance characteristic or design intent?
documents published by nationally recognized organizations
extinguishing agent that is made up of small solid particles propelled by a pressurized gas that covers the burning material and decreases the oxygen concentration
dry chemical
which extinguishing agent is effective on class D fires and eliminates oxygen byy forming a crust on the materials and depleting the available oxygen
dry powder
how often should fire extinguishers have a visual inspection to ensure readiness and serviceability
every 30 days
the purpose of a conductivity test is to make sure the class C extinguishing agent and equipment are nonconductive so that the _________ is safe from shock potential
extinguisher operator
if a class A fire extinguisher has a rating of 6-A, it must be able to extinguish a __________ wood crib fire
6-cubic foot
Which NFPA standard, titled National Fire Alarm and Signaling Code, lists system classifications for fire alarm systems?
72
the design of water-based fire extinguishing systems is based on the premise that one gallon of water, when properly applied, can absorb how many british thermal units?
8000
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 classes of fire involves ordinary combustibles such as cloth, grain, paper, rubber and wood
Class A
what group has developed a commonly used color coding system for fire hydrants?
NFPA
what organization is not part of the merger to become part of the international code council in the mid 1990's
NFPA
which extinguising agent is effective on class b and c fires but has limited use on class A
carbon dioxide
of the different methods of heat transfer, which is the transfer of heat from one body of material to another by direct contact
conduction
the effect of convection is directly influenced by the size and shape of the
fire compartment
Which heat detector operates when a sensing element within the detector reaches a predetermined temperature?
fixed temperature heat detector
in this transition stage, the temperature in a room or space reaches a point at which all of the surfaces
flashover
what extinguishing agent forms a vapor barrier between the class B fuel and the atmosphere, thus cooling and smoldering the fire
foam
which commonly used supression agent can cover leaking fuel so that oxygen cannot reach the fuel
foam
Which type of valve is required on the suction side of the fire pump, allowing the pipe to be open to the full diameter of water flow?
gate valve
The only purpose of the _______ is to boost and maintain the system pressure above the fire-pump start-pressure setting in order to avoid frequent fire pump operation.
jockey pump
which type of material produces twice the amount of heat per pound than combustible materials
plastic
Which system establishes the building/property owner as the responsible party to monitor the fire alarm system signals at his or her facility?
proprietary supervising alarm system
the form of heat transfer that occurs through electromagnetic energy
radiation
Which of the following fire alarm systems is found in homes and consists of smoke detectors and possibly a combination detector covering smoke and heat that operates independently from other alarm systems and detectors?
single station detectors
what factor has a significant impact on fire growth, in addition to the shape of surrounding walls, ceilings, and roofs
size of a structure
which type of fire, usually seen with charcoal briquettes and burning cigarettes, has no flame but still generates significant heat
smoldering
this type of fire starts without a known external heat source beign applied to the combustible material
spontaneous combustion
_________ is defined as the pressure exerted on a water supply system when there is no water flowing
static
____________ have both the pressurized expelling gas and the extinguishing agent mixed in the same tank and use the gas to push the extinguishing agent out through a nozzle or hose when operated
stored pressure extinguisher
Which of the eight 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
Which signal sounds when there is a change in the normal ready status of other fire protection systems or devices that are connected to or integrated with the fire alarm panel?
supervisory signal
what is considered the most important part of any fire alarm system
the fire alarm control panel
Which function of a fire alarm system is caused by interfacing fire dampers with the fire alarm system to prevent propagation of smoke, hot gases, and flame?
the fire dampers close
who is responsible for the inspection, testing, and maintenace of fire extinguishers to ensure that they will be in working order when needed
the property owner
What system permits first responders and, in some cases, building occupants to communicate between specific locations within the building and the fire control room via an internal communications system?
two way emergency communication system
What is the first factor used to determine any fire alarm installation requirements of a building?
use and occupancy
which extinguishing agent can absorb more heat per pound that any other extinguishing material
water
What is a system of rules, regulations, or laws typically developed by private, not-for-profit organizations?
model code
________ 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 system involves a number of interconnected smoke alarm units that all sound together throughout a facility as soon as one is activated?
multiple station detectors
In order to determine if the delivery system is adequate for manual firefighting, what must the engineers calculate?
needed fire flow
Which system provides audible and visual notification within the property it is protecting to alert occupants of a fire emergency?
protected premesis fire alarm system
which type of fire extinguisher requires manual operation, creating the necessary pressure in the tank to expel the extinuishing agent
pump extinguisher
Which term refers to the pressure exerted on a water supply system when water is flowing?
residual pressure
Which component of a fire alarm system utilizes a flexible round plastic paddle or vane that inserts into the wet sprinkler system piping?
water flow swith
Which of the following is NOT part of the water supply system source/supply network?
water intake system
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
wet chemical
which NFPA standard is for portable fire extinguishers
10
what type of material is generally the best for heat transfer through conduction, because it absorbs and transmits heat rapidly and evenly
heavy, dense material
__________ fire alarm systems utilize a fire control panel to provide an interface between system devices; primary and backup power for the devices; alarm functions; and monitoring capabilities to ensure system integrity.
household detectors
Which person or organization(s) requires commercial and industrial building owners to install some type of fire protection system?
insurance companies