Fire 3 Midterm

Step 3 of the NFPA Code development process

When someone can file a Notice of Intent to Make a Motion

size of a structure

a factor that has a significant impact on fire growth, in addition to the shape of surrounding walls, ceilings and roofs

fire tetrahedron

a geometric depiction, developed through ongoing research, showing how fire is sustained by a chain reaction

Model code

a system of rules, regulations, or laws typically developed by private, not-for-profit organizations

What are the three ways to describe the technology used with state-of-the-art fire alarm control panels?

addressable, intelligent and conventional

model construction 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

Which of the two types of stationary fire pumps creates pressure by drawing water into the center of a precision manufactured disk shaped piece of metal called an impeller?

centrifugal pump

Foam

commonly used suppression agent can cover leaking fuel so that oxygen cannot reach the fuel

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

current code requirements

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

distance to the closest fire house

What type of material is generally the best for heat transfer through conduction, because it absorbs and transmits heat rapidly and evenly?

less dense material

If the standpipe system has an automatic water, what should be on the exterior of the building and provide a means to safely remove the system water so it will not be a hazard?

main drain

Which standpipe system has air in it and can be used by connecting a water source to the fire department connection?

manual dry standpipe system

Which lined hose must be installed into hose cabinets and must not exceed 100 feet in length and may be collapsible or non-collapsible?

1 1/2 in hose

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

Fire

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.

Which heat detector operates when a sensing element within the detector reaches a predetermined temperature?

A sensing device that responds when its operating element is heated to a predetermined temperature; fixed temperature heat detector

Alarm Signal

A signal indicating an emergency requiring immediate action, such as a signal indicative of fire.

Codes

A system of rules, regulations, or laws that are usually put into effect by government and have statutory authority to be enforced

The importance of the __________ test cannot be overstated, as a fire alarm system is only as good as its installation.

Acceptance

What operates when the pressure setting either rises above or drops below a pre-set pressure threshold?

Alarm pressure switch

When fire fighters enter a building, the first thing they look for is what?

Annunciation panel

All inspections, tests and certification of new public and private water lines, including visual inspection of materials and securing methods; hydrostatic testing; line testing; and disinfection, are usually handled by who?

Approving authority

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

Class C

Charged Electrical fires

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

Check Valves

Which classification of standpipes is designed for use by fire fighters or fire brigade personnel who are trained to handle heavy fire streams?

Class I standpipe system

Which standpipe classification combines two of the different classes and can be use by occupants and fire fighters or fire brigade members?

Class III standpipe system

Which system consists of a fire warning equipment, burglar alarms, medical alert, and other sensing equipment such as carbon monoxide detectors?

Combination systems

Class D fire

Combustible metals

Class K fire

Combustible vegetable or animal oils and fats

Automatic wet standpipe system

Contains water in the pipe at all times and is required to supply the sufficient quantities of water to support manual firefighting operations

Which of the following is not a component of a smoke detector? A) Integrated Sensing device B) Power source C) Audible alarm D) Smoke generator

D) Smoke generator

Visible appliances produce the flashing lights that can be seen when a fire alarm system activates. Which disability are they primarily used for?

Deaf people

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

Which detector samples air as it moves through the air distribution ductwork. If smoke is detected it can shut down the unit and close any smoke dampers?

Duct smoke detector

What doe the International code council and the NFPA devote all their time and effort to?

Evaluation of adoption processes

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

Fire compartment

Once the standpipe system is ready for service, which of the following is conducted to ensure that the required flow and pressure are available?

Flow tests

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

Flushing

In-building emergency voice/alarm communications system (EVACS) are an integral part of which type of building?

High rise building

Which type of detector only uses two electronically charged plates and a small amount of radioactive material to detect a fire?

Ionization smoke detector

Which initiating device requires a person to pull a handle on the device to initiate an alarm?

Manual fire alarm box

Which system contains water in the pipe at all times; the water is typically supplied from the buildings domestic water system-not from a dedicated fire service line?

Manual wet standpipe system

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 Alarm system

Which of the following organizations, in the 1900s, developed a method of classifying or categorizing fires based on the extinguishing agent that was appropriate for the fire?

NFPA

Who wasn't apart of the merger to become the international code

NFPA

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

NFPA 14

Which NFPA standard titled, National Fire Alarm and Signaling Code, lists system classifications for fire alarm systems?

NFPA 72

What does NOT factor into requirements for automatic smoke detection in assembly or business occupancies?

Occupancy load

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

Outside screw and yoke valve

Which valve features a freestanding post that houses the stem extension of an underground valve control? The position of the valve is shown in a small window.

Post indicator valve

The basis for the overall performance characteristics of the pump

Rated performance

9; 100

Ratio of different sprinkler system design and installation standards within boston, massachusetts

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

Residual Pressure

Which fire alarm systems is found in homes and consists of smoke detectors possibly a combination detector covering smoke and heat that operates independently from other alarm systems and detectors?

Single Station

Which type of detector is typically installed in an area where environmental conditions or temperatures fluctuate, so the heat of a fire will be high?

Smoke detector

What is the type of static pressure exerted on a water supply system where there is no water flowing?

Static pressure

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

Which signal may be a voice message heard from loud speakers or a symbol flashing on a computer screen?

Textual Signals

Some smoke and fire doors are held open by magnets or other devices to allow easy movement from one part of a building to another, but upon activation of this function, what happens?

The device holding the door open releases so it can create a fire or smoke barrier

conduction

The direct transfer of heat from one substance to another substance that it is touching.

Flashover stage

The stage of a fire at which the combustible contents of a compartment are totally in flame.

Radiation

The transfer of energy by electromagnetic waves

Why would fire fighters sometimes intentionally set controlled fire to remove fuel ahead of hostile, uncontrolled fire?

To remove or interrupt the fuel supply

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 systems

what is the first factor used to determine any fire alarm installation requirements of a building?

Use group and Occupancy

When the pressure at the hose valve outlet exceeds a predetermined pressure, how are the fire fighters in most jurisdictions alerted of the high pressure?

Warning Signs

What occurs when a valve or nozzle is closed very quickly under pressure of the system and can cause sever damage to the water system?

Water hammer

Which of the following hydrant styles always has water in it for immediate use by fire fighters and is controlled to separate valves for each opening?

Wet barrel

Which type of material produces twice the amount of heat per pound than common combustibles?

metal

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

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

needed fire flow

Incipient stage

occurs when the heat source, fuel and oxygen come together to generate more than is dissipated

Which pump operates by reciprocating motion, with the liquid being drawn into a cylinder on the intake stroke and expelled under pressure on the discharge stroke by a plunger or piston?

positive displacement pump

Which system establishes the building/property owner as the responsible part to monitor the fire alarm?

proprietary supervising fire alarm system

Which system provides audible and visual notification within the property it is protecting to alert occupants of a fire emergency?

protected premises fire alarm system

Which type of heat detector uses pneumatic or electronic methods to monitor how much temperature change takes place over a fixed amount of time?

rate of rise heat detector

Premixed flame

requires an appropriate amount of gas fuel and air to mix before ignition or combustion occurs

Smoldering

seen with charcoal briquettes and burning cigarettes, has no flame but still generates significant heat

fire triangle

served as a teaching too to geometrically depict the relationship between fuel, air and heat

Which type of lines tap off of distribution lines and directly connect to the water based fire protection system of hydrant?

service lateral lines

Class B fires can be extinguished through which action

smothering

convection

transfer occurs from one body to another through a medium such as liquid or gas

The most effective suppression agent for for Class A fires because it has the ability to absorb the heat and reduce the temperature below the material's ignition temperature

water

Automatic dry standpipe system

water only enters the piping when a valve is opened and the air pressure drops to a particular level

Smoldering/decay stage

when a fire begins to subside to the point at which the available fuel is exhausted or the oxygen level drops below 16 percent

free burning stage

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

According to NFPA 72, the public mode audible sound level must last more than 60 seconds and must be at least how many decibels above the average ambient sound level?

15 Decibels

According to NFPA 14, a fire department connection must be located to a minimum of how many inches above the adjoining ground, sidewalk, or grade surface?

18 inches

What is the duration and testing air pressure for the air test in a dry standpipe system?

24 hours at 40 psi

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

45 days

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

Which person or organization(s) requires commercial and industrial building owners to install some type of fire protection system?

insurance companies

spontaneous combustion

starts without a known external heat source being applied to the combustible material

Which 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 shut

diffusion flame

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.