fire

the design of water-based fire extinguishing systems is based on the premise

8000

at the time of the origin of the nfpa in 1895

9; 100

A wet or dry chemical system initiates a(n) ______ upon activation. Selected Answer: C. alarm signal Answers: A. intermittent beeping B. phone message C. alarm signal D. rush of air Question 2 1 out of 1 points 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? Selected Answer: A. 6 years Answers: A. 6 years B. 5 years C. 3 years D. 12 years Question 3 1 out of 1 points Ammonium phosphate is _________ in order to differentiate it from other dry chemicals. Selected Answer: C. yellow Answers: A. blue B. purple C. yellow D. white Question 4 1 out of 1 points Dry chemical extinguishing agents are not considered to be dangerous or toxic, although _________ can occur once it is expelled from the system. Selected Answer: C. respiratory problems Answers: A. reaction with flammables B. noncorrosive problems C. respiratory problems D. conductivity problems Question 5 1 out of 1 points How often should the owner or a representative visually inspect the extinguishing system for conditions that could cause failure of, or inhibit, operation? Selected Answer: D. Monthly Answers: A. Semi-annually B. Quarterly C. Yearly D. Monthly Question 6 1 out of 1 points 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 activates? Selected Answer: B. Gas cartridges Answers: A. Agent storage containers B. Gas cartridges C. Piping and fittings D. Nozzles Question 7 1 out of 1 points The _________ is a mechanical device that is used as an automatic activation device for wet or dry chemical extinguishing systems. Selected Answer: D. fusible link Answers: A. trip wire B. pull station C. push button D. fusible link Question 8 1 out of 1 points Through proper engineering of the system, the agent and expelling gas must properly mix and maintain flow balance to ensure even distribution of the agent through the system. This is called: Selected Answer: D. fluidization. Answers: A. liquefaction. B. saponification. C. condensation. D. fluidization. Question 9 1 out of 1 points Wet chemical extinguishing agents use water-based solutions mixed with any of the following agents or additives, EXCEPT: Selected Answer: D. aqueous film-forming foam. Answers: A. potassium citrate. B. potassium carbonate. C. potassium acetate. D. aqueous film-forming foam. Question 10 1 out of 1 points What must the manufacturer include on the nozzle to identify the particular nozzle type? Selected Answer: C. Permanent markings Answers: A. Security packaging B. Zip-tied specifications C. Permanent markings D. Instruction booklet Question 11 1 out of 1 points When conducting discharge and acceptance tests, _______ are attached to the nozzles to capture the agent when discharged. Selected Answer: C. balloons Answers: A. hoses B. plugs C. balloons D. None of the above Question 12 1 out of 1 points Which of the following can stand alone, supplement fire extinguishers, or supplement fixed dry chemical systems? Selected Answer: A. Hand hose line system Answers: A. Hand hose line system B. Local application system C. Remote application system D. Total flooding system Question 13 1 out of 1 points 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? Selected Answer: A. Agent storage containers Answers: A. Agent storage containers B. Nozzles C. Gas cartridges D. Piping and fittings Question 14 1 out of 1 points Which of the following has been commonly protected by fixed dry chemical extinguishing systems since the early 1950s? Selected Answer: B. Self-serve fuel-pump stations Answers: A. Injection molding processes B. Self-serve fuel-pump stations C. Woodworking appliances D. Bulk fuel storage areas Question 15 1 out of 1 points Which of the following is NOT a pressurized gas used as a transport medium for dry chemical extinguishing agents? Selected Answer: B. Oxygen Answers: A. Compressed air B. Oxygen C. Nitrogen D. Carbon dioxide Question 16 1 out of 1 points Which of the following is NOT one of the three general categories of dry chemical extinguishing agents? Selected Answer: D. Baking soda-based Answers: A. Multipurpose B. Sodium bicarbonate-based C. Potassium-based D. Baking soda-based Question 17 1 out of 1 points Which system protects a specific area, piece of equipment, process, or operation depending on the hazard? Selected Answer: B. Local application system Answers: A. Total flooding system B. Local application system C. Hand hose line system D. Remote application system Question 18 1 out of 1 points Which system protects enclosed hazards and areas within a structure, such as in paint spray booths? Selected Answer: A. Total flooding system Answers: A. Total flooding system B. Hand hose line system C. Local application system D. Remote application system Question 19 1 out of 1 points Which type of extinguishing system protects commercial kitchen appliances and the associated ductwork, exhaust hoods, filters, and plenum chambers? Selected Answer: D. Wet chemical extinguishing system Answers: A. Dry chemical extinguishing system B. Gaseous agent extinguishing system C. Foam-water extinguishing system D. Wet chemical extinguishing system Question 20 1 out of 1 points 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. Selected Answer: B. NFPA-adopted Answers: A. pre-engineered B. NFPA-adopted C. manually controlled D. local application Question 21 1 out of 1 points __________ occurs when the extinguishing agent reacts with the cooking oil to form a soapy foam blanket that provides separation between oxygen and fuel. Selected Answer: B. Saponification Answers: A. Condensation B. Saponification C. Evaporation D. Pontification

9

when fire fighters enter building, the first thing they look for

annunciation

in this transition stage

flasover

fire alarm systems utilize a fire control panel to provide an interface

household

which of the following stages of fire occurs when the heat

incipient

nfpa 72 provides extensive information concerning fire alarm and detection

installion

which person or organization requires commercial and industrial

insurance companies

the model codes are the acceptable level of performance

minimun

in order to determine if the delivery system

needed fire flow

this type of fire requires an appropriate amount of gas fuel and air to mix

premixed

which system provides audible and visual notification

protected

which type of heat detector uses pneumatic or electronic methods to monitor

rate of rise

this type of fire starts without a know external

spontaneous

in the 1900s,which of the following organization developed

underwriters laboratories

what is the first factor used to determine any fire alarm installation

use and occupancy

is the most effective suppression agent for class a fires

water

which of the following extinguishing agents is not used to break the chain reaction

water

which component of a fire alarm system utilizes

water flow switch

which of the following is not part of the water supply

water intakes

which of the following would be a source of water for a system

a deep well or reservoir

the importance of the test cannot overstand

acceptance

which type of smoke detector is one of the more sophisticated types

air sampling

what operates when the pressure setting either rises

alarm pressure switch

which type of signal should spur occupants to immediately

alarm signal

in which stage of the nfpa code development process is a notice

association

which of the following systems is not preferred, because problems with ground faults

auxiliary fire alarm system

fires involve energized electrical equipment

c

which system establishes a high level of service

central station

which class of fire involves combustible metals and dusts

class d

which type of fire involves cooking appliances using combustible

classk

a manual fire alarm box is assigned a code that sounds from an audible

coded

are a system of rules, regulations, or laws that are usually put into effect

codes

which of the following systems consists of fire warning equipment

combination

is a chemical reaction in which a combustible materail and an an oxidizing agent produce

combustion

in which stage of the nfpa code development process does

comment stage

at which step in the international code council code development process are hearings

commitee action

of the different methods of heat transfer

conduction

Which of the following forms of heat transfer

convection

in which stage of the nfpa code development process does the council

council

there are many ways to describe the technology used with

coventional

when having a new construction done in an existing buliding

current code

visible appliances produce the flashing

deaf

the main purpose of the model code organizations has

develop and mainatain

the international code council and the nfpa devote all of their

development

this type of fire is the most recognizable, can be seen by lighting a match

diffusion flame

which of the following is not a primary determination for weather

distances to the closest firehouse

a communications system that sends information using internet protocol

distributed recipient mass

to ensure utilization and adoption of the best methods

document published nationally rec

aside from protecting human life, why would a building

doing so makes good

simple air as it moves through the air distribution ductwork

duct smoke detectors

are used to send a supervisory signal to the fire alarm panel

electronic

the effects of convection

fire compartment

which heat detectors operates when a sensing element within

fixed tempture heat dtector

which commonly used suppression agent can cover leaking

foam

prior to the public comment hearing, the published

forty five days

at which stage will fire survive by consuming the air and materials necessary

free burning stage

which type of detector is typically installed in an area

heat detector

what type of material is generally the best

heavy

in-building emergency voice/alarm communication systems

high rise

which type of detector uses two electronically charged plates and a small

lonization

which initiating devices requires a person to pull

manual fire alarm box

which of the following refers to a system of rules, regulations

model code

code attempt to achieve a balance between the hazards posed by

model construction

which system involves a number of interconnected smoke alarm units that all sound

multiple station

which of the following organizations was not part of the merger to become

national protection association

which nfpa standard, titled national fire alarm and signaling code

nfpa 72

what does not factor into requirement for automatic smoke detection

occupancy load

which type of material produces twice the amount of heat per pound

plastic

which of the following are used are used when fire system designers discover

power expanders panels

which system establishes the building/property owner as the responsible

proteced pre,

are located on streets in the community and can be operated

publicly accessible alarm boxes

is the form of heat transfer that occurs through electromagnetic

radiation

which type of heat detector responds to predetermined air temperatures

rate compensation change

which system is set up report alarm, trouble, and supervisory

remote

fire fighters sometimes intentionally set controlled fires to remove fuel

removing

which of the following fire alarm systems is found in homes

single station

what factor has a significant impact on fire growth

size of a strcture

which of the following is not a component of a smoke detector

smoke geneartor

when a fire begins to subside to the point

smoldering

which type of fire, usually seen with charcoal briquets

smoldering

class b fires involving flammable and combustible liquids

smothering

which of the eight steps of the international code council code

submit code changes

which signal sound when there is a change in the normal ready status

supervisory signal

depending on the system design, notification appliances

textual signals

some smoke and fire doors are held open by magnets

the devices holding the door open

is/are considered to be the most

the fire alarm control panel

which function of fire alarm system is caused by interfacing fire

the fire dampers close

which of the following is a geometric depiction, develpoed

the fire traingle

what has served as a teaching tool to geometrically depict the relationship

the fire triangle

various use and occupants listed in the international building code

the level of exit discharge

which signal sounds when there is a problem with the systems

trouble signal

what system permits first responders and, in some cases

two way emergency

Activating smoke control by _________ is NOT recommended and is rarely done because of the potential for malicious activation. Selected Answer: C. manual fire alarm box Answers: A. sprinkler flow switch B. smoke detector C. manual fire alarm box D. power loss Question 2 0 out of 1 points Creating _________________ between affected fire areas and surrounding unaffected non-fire areas, particularly egress paths, can result in effective smoke control. Selected Answer: A. an adequate stairway differential Answers: A. an adequate stairway differential B. adequate floating zone pressurization C. adequate elevator shaft pressurization D. an adequate pressure differential Question 3 1 out of 1 points How frequently should smoke control systems undergo functional and performance testing? Selected Answer: B. Annually Answers: A. Monthly B. Annually C. Quarterly D. Semi-annually Question 4 1 out of 1 points In addition to stairway pressurization, high-rises may utilize which of the following, also known as the sandwich effect? Selected Answer: D. Floating zone pressurization Answers: A. Elevator shaft pressurization B. Refuge area differential C. Pressure differential D. Floating zone pressurization Question 5 1 out of 1 points Of the general design approaches, which one utilizes walls, bulkheads, doors, partitions, draft curtains, high ceilings, and sealed floor openings to create barriers? Selected Answer: A. Passive design approach Answers: A. Passive design approach B. Buoyancy force C. Stack effect D. Active design approach Question 6 1 out of 1 points Operational requirements found in the model codes include the ability to maintain the smoke level at ______ above the highest level of seating or walking surface in the means of egress. Selected Answer: B. 6 feet Answers: A. 8 feet B. 6 feet C. 12 feet D. 10 feet Question 7 1 out of 1 points Smoke control and management systems must interconnect with all of the following systems EXCEPT _________ to initiate the appropriate control sequences and response when a fire emergency arises. Selected Answer: C. intrusion alarm systems Answers: A. fire protection systems B. elevator systems C. intrusion alarm systems D. HVAC systems Question 8 1 out of 1 points The final approved report outlining all final individual component, individual functional, and integrated system performance tests must be located in the: Selected Answer: D. building's fire control room. Answers: A. facility manager's desk. B. local system maintainer. C. local fire department. D. building's fire control room. Question 9 1 out of 1 points What type of detector can be installed in elevator lobbies that interface with elevator control systems to establish recall priorities during fire emergencies? Selected Answer: D. Smoke Answers: A. Flame B. Heat C. Beam D. Smoke Question 10 1 out of 1 points Which design approach uses mechanical systems to exhaust, pressurize, and (in particular situations) oppose the smoke with forced air? Selected Answer: B. Active design approach Answers: A. Passive design approach B. Active design approach C. Stack effect D. Buoyancy force Question 11 0 out of 1 points Which of the following can control smoke across openings when the pressure differential strategy is not practical? Selected Answer: A. Airflow direction Answers: A. Airflow direction B. Smoke direction C. Smoke removal D. Airflow velocity Question 12 1 out of 1 points Which of the following is NOT to be recorded when testing at the functional level and integrated performance level? Selected Answer: C. Fire department response time Answers: A. Door opening forces B. Smoke control system response time C. Fire department response time D. Air pressure differential Question 13 1 out of 1 points Which of the following spaces has no physical barriers to restrict smoke movement, causing smoke and toxic gases to rise and spread throughout the open space? Selected Answer: D. Large volume spaces Answers: A. Mass stairwells B. Limited volume spaces C. Parking lots D. Large volume spaces Question 14 1 out of 1 points Which of the following systems prevents or substantially reduces smoke intrusion into egress stairways, so occupants can use the stairs to exit the building? Selected Answer: D. Stairway pressurization Answers: A. Floating zone pressurization B. Refuge area differential C. Elevator shaft pressurization D. Stairway pressurization Question 15 1 out of 1 points Which of the following terms is used to describe a mechanical system that pressurizes areas of a building with fans to limit smoke movement when there is a fire? Selected Answer: B. Smoke control Answers: A. Smoke damper B. Smoke control C. Smoke current D. Smoke management Question 16 1 out of 1 points Which pressurization system has fans that pump air into the hoistway, creating a pressure barrier that is slightly higher than the areas outside? Selected Answer: D. Elevator hoistway pressurization Answers: A. Pressure differential B. Floating zone pressurization C. Refuge area differential D. Elevator hoistway pressurization Question 17 1 out of 1 points Which smoke control method creates holding areas for persons who are unable to exit a building without assistance in an emergency? Selected Answer: B. Refuge area pressurization Answers: A. Floating zone pressurization B. Refuge area pressurization C. Elevator shaft pressurization D. Pressure differential Question 18 1 out of 1 points Which smoke control method is best suited for large volume spaces, such as atriums, indoor stadiums, airport terminals, and indoor malls? Selected Answer: C. Smoke removal Answers: A. Containment by airflow B. Stairway differential C. Smoke removal D. Pressure differential Question 19 1 out of 1 points Which system, if it has failed to shut down under fire conditions, will be the strongest contributor to smoke movement? Selected Answer: B. HVAC system Answers: A. Fire protection system B. HVAC system C. Elevator system D. Backup power system Question 20 1 out of 1 points _________ is a term used to describe passive and active systems used alone or in combination to alter smoke movement. Selected Answer: C. Smoke management Answers: A. Smoke currents B. Smoke control C. Smoke management D. Smoke dampers

12

n some cases, 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: Selected Answer: C. occupant rental agreements. Answers: A. hazardous materials management plans. B. material safety data sheets. C. occupant rental agreements. D. hazardous materials inventory statements. Question 2 1 out of 1 points In the last 25 years, it has become mandatory that emergency responders be able to _________ from the fire command center. Selected Answer: C. unlock all stairway doors simultaneously Answers: A. lock all open stairway doors simultaneously B. close all stairways doors limiting access C. unlock all stairway doors simultaneously D. open doors automatically for smoke removal Question 3 1 out of 1 points Interior exit stairway doors must be able to open on _______ without any special knowledge, effort, or key. Selected Answer: D. both sides Answers: A. the hallway side B. neither side C. the stairwell side D. both sides Question 4 1 out of 1 points Limiting _________ minimizes a person's exposure to a fire condition before reaching an exit. Selected Answer: D. travel distance Answers: A. stairs to climb down B. doors to travel through C. stairs to climb up D. travel distance Question 5 1 out of 1 points The _____________ 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. Selected Answer: D. exit Answers: A. exit access B. exit discharge C. door hardware D. exit Question 6 1 out of 1 points The _____________ system is similar to the siren sensor system but instead of the siren, the emergency responder's radio is used. Selected Answer: A. radio frequency sensor Answers: A. radio frequency sensor B. access codes and access cards C. siren sensor D. proprietary access key Question 7 1 out of 1 points The use of a sensor to detect an emergency vehicle's _________ is one of the most commonly used detection and access systems. Selected Answer: A. siren Answers: A. siren B. lights C. engine noise D. horn Question 8 1 out of 1 points 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: Selected Answer: A. electromagnetically locked egress doors. Answers: A. electromagnetically locked egress doors. B. electronically controlled doors. C. access-controlled egress doors. D. delayed egress doors. Question 9 1 out of 1 points What access system is used as a backup to the siren sensor if it fails to detect the siren? Selected Answer: D. Key switch Answers: A. Emergency building entrance system B. Radio frequency sensor C. Voice recognition access gate D. Key switch Question 10 1 out of 1 points 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? Selected Answer: C. Emergency building entrance system Answers: A. Siren sensors B. Waiting night watchman C. Emergency building entrance system D. Voice recognition access gate Question 11 1 out of 1 points What may be installed by property owners, tenants, and managers in order to restrict access to the property, and may be a heavy motorized device? Selected Answer: B. Security gate Answers: A. Wall B. Security gate C. Fence D. Emergency building entrance system Question 12 1 out of 1 points What type of door has installed security devices that may involve a magnet or pin that penetrates the doorframe or floor? Selected Answer: B. Access-controlled egress door Answers: A. Electronically controlled door B. Access-controlled egress door C. Electromagnetically locked egress door D. Delayed egress door Question 13 1 out of 1 points What type of key, with a jurisdiction-specific pattern, is used to open an emergency building entrance system? Selected Answer: B. Proprietary key Answers: A. Skeleton key B. Proprietary key C. Lock pick set D. Master key Question 14 1 out of 1 points What type of lock is permitted in certain facilities and prevents clients or occupants from opening an exit door without staff noticing? Selected Answer: B. Delayed egress lock Answers: A. Tamperproof lock B. Delayed egress lock C. Deadbolt lock D. Security lock Question 15 1 out of 1 points Which of the following components of the means of egress is the portion that leads to the exit? Selected Answer: B. Exit access Answers: A. Exit discharge B. Exit access C. Exit D. Door hardware Question 16 1 out of 1 points Which of the following is NOT a model code requirement for delayed egress locks? Selected Answer: D. The door must automatically relock once opened. Answers: A. The lock must unlock upon loss of power. B. A sign must be present instructing occupants of the lock's operation. C. Emergency lights must be present so the sign can be read. D. The door must automatically relock once opened. Question 17 1 out of 1 points Which of the following is the least desirable access method as it may cause fire fighters to lose valuable time? Selected Answer: C. Access codes and access cards Answers: A. Radio frequency sensor B. Siren sensor C. Access codes and access cards D. Proprietary access key Question 18 1 out of 1 points Which of the following opens a gate when a detector is activated or a water flow switch senses a change in water flow? Selected Answer: C. Fire protection system interface Answers: A. Radio frequency sensor B. Siren sensor C. Fire protection system interface D. Access codes and access cards Question 19 1 out of 1 points Which of the following terms used by NFPA 5000 has the same meaning as the term electromagnetically locked egress doors, which is used in the International Building Code ®? Selected Answer: D. Electronically controlled doors Answers: A. Delayed egress doors B. Access controlled egress doors C. Exit discharge doors D. Electronically controlled doors Question 20 1 out of 1 points Which portion of the means of egress is between the exit and the public way outside of a building? Selected Answer: B. Exit discharge Answers: A. Door hardware B. Exit discharge C. Exit access D. Exit

13

according to nfpa 72, the public mode audible sound

15 decibels

which edition of nfpa 72 established new signaling priorities, placing emergency

2007

According to NFPA 10, water-based extinguishers should be hydrostatically tested every ____ years. Selected Answer: C. 5 Answers: A. 15 B. 20 C. 5 D. 10 Question 2 1 out of 1 points How often should fire extinguishers have a visual inspection to ensure readiness and serviceability? Selected Answer: D. Every 30 days Answers: A. Every 365 days B. Every 120 days C. Every 90 days D. Every 30 days Question 3 1 out of 1 points If a Class A fire extinguisher has a rating of 6-A, it must be able to extinguish a _____ wood crib fire. Selected Answer: D. 6-cubic-foot Answers: A. 6-cubic-inch B. 6-cubic-meter C. 6-cubic-yard D. 6-cubic-foot Question 4 1 out of 1 points If an extinguisher is rated as 120-B, it means that the person operating the extinguisher should have enough product to extinguish a: Selected Answer: C. 120-square-foot pan fire. Answers: A. 120-square-yard pan fire. B. 120-square-inch pan fire. C. 120-square-foot pan fire. D. 120-square-meter pan fire. Question 5 1 out of 1 points 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? Selected Answer: B. Class B Answers: A. Class K B. Class B C. Class C D. Class D Question 6 1 out of 1 points 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 potentials? Selected Answer: A. extinguisher operator Answers: A. extinguisher operator B. extinguisher agent C. extinguisher D. facility Question 7 1 out of 1 points What is the National Fire Protection Association standard for portable fire extinguishers? Selected Answer: A. NFPA 10 Answers: A. NFPA 10 B. NFPA 101 C. NFPA 12 D. NFPA 15 Question 8 1 out of 1 points What is the second step of the operation of a fire extinguisher, as labeled on the side of the fire extinguisher in a pictograph format? Selected Answer: B. Aim the nozzle. Answers: A. Squeeze the trigger. B. Aim the nozzle. C. Pull the pin. D. Sweep the nozzle across the base of the fire. Question 9 1 out of 1 points Which classification of fire extinguishers involves energized electrical equipment? Selected Answer: A. Class C Answers: A. Class C B. Class B C. Class K D. Class A Question 10 1 out of 1 points 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? Selected Answer: A. Wet chemical Answers: A. Wet chemical B. Dry powder C. Halon D. Foam Question 11 1 out of 1 points Which extinguishing agent is effective on Class B and C fires, but has limited use on Class A fires? Selected Answer: C. Carbon dioxide Answers: A. Water B. Foam C. Carbon dioxide D. Wet chemical Question 12 1 out of 1 points Which fire extinguisher type has a pressurized cartridge that, when activated, releases the pressurized gas into the extinguishing agent tank, forcing it out a nozzle or hose? Selected Answer: A. Cartridge pressure extinguisher Answers: A. Cartridge pressure extinguisher B. Stored pressure extinguisher C. Self-expelling extinguisher D. Pump extinguisher Question 13 1 out of 1 points Which of the following Class A fire extinguisher ratings is based on outdoor tests? Selected Answer: D. 30-A Answers: A. 5-A B. 10-A C. 20-A D. 30-A Question 14 1 out of 1 points Which of the following classes of fire involves cooking media that use combustible vegetable or animal oils and fats? Selected Answer: A. Class K Answers: A. Class K B. Class B C. Class A D. Class D Question 15 1 out of 1 points Which of the following classes of fire involves ordinary combustibles such as cloth, grain, paper, rubber, and wood? Selected Answer: A. Class A Answers: A. Class A B. Class K C. Class D D. Class B Question 16 1 out of 1 points Which of the following extinguishing agents can absorb more heat per pound than just about any other extinguishing material? Selected Answer: C. Water Answers: A. Dry chemical B. Dry powder C. Water D. Wet chemical Question 17 1 out of 1 points Which of the following extinguishing agents forms a vapor barrier between the Class B fuel and the atmosphere, thus cooling and smothering the fire? Selected Answer: A. Foam Answers: A. Foam B. Carbon dioxide C. Clean agent D. Wet chemical Question 18 1 out of 1 points Which of the following extinguishing agents is effective on Class D fires and eliminates oxygen by forming a crust on the materials and depleting the available oxygen? Selected Answer: B. Dry powder Answers: A. Dry chemical B. Dry powder C. Foam D. Wet chemical Question 19 1 out of 1 points Which type of fire extinguisher requires manual operation, creating the necessary pressure in the tank to expel the extinguishing agent? Selected Answer: D. Pump extinguisher Answers: A. Stored pressure extinguisher B. Cartridge pressure extinguisher C. Self-expelling extinguisher D. Pump extinguisher Question 20 1 out of 1 points Who is responsible for the inspection, testing, and maintenance of fire extinguishers to ensure that they will be in working order when needed? Selected Answer: D. The property owner Answers: A. The fire department B. The extinguisher contractor C. The manufacturer D. The property owner Question 21 1 out of 1 points _______ extinguishing agent is made up of small solid particles propelled by a pressurized gas that covers the burning material and decreases the oxygen concentration. Selected Answer: D. Dry chemical Answers: A. Carbon dioxide B. Wet chemical C. Dry powder D. Dry chemical Question 22 1 out of 1 points _____________ have both the pressurized expelling gas and the extinguishing agent mixed in the same tank, and use gas to push the extinguishing agent out through a nozzle or hose when operated. Selected Answer: D. Stored pressure extinguishers Answers: A. Self-expelling extinguishers B. Pump extinguishers C. Cartridge pressure extinguishers D. Stored pressure extinguishers

10

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 non-ignitable environment. Selected Answer: C. carbon dioxide gas Answers: A. frost B. a powdery substance C. carbon dioxide gas D. residue Question 2 1 out of 1 points At what pressure is carbon dioxide stored to be considered high-pressure storage? Selected Answer: B. 850 psi Answers: A. 300 psi B. 850 psi C. 250 psi D. 120 psi Question 3 1 out of 1 points Because _______ can stay in the atmosphere for many years and require substantially more agent to protect an area than halon does, product and system manufacturers do not recommend discharge tests. Selected Answer: D. clean agents Answers: A. carbon dioxide remnants B. aerosol agents C. foam by-products D. clean agents Question 4 1 out of 1 points Carbon dioxide is very effective on which two classes of fire? Selected Answer: B. Classes B and C Answers: A. Classes D and B B. Classes B and C C. Classes K and C D. Classes C and D Question 5 1 out of 1 points Low-pressure carbon dioxide extinguishing systems can store ______ of carbon dioxide in one large pressure container. Selected Answer: C. 60 tons Answers: A. 120 pounds B. 5 pounds C. 60 tons D. 5 tons Question 6 1 out of 1 points 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? Selected Answer: C. Local application system Answers: A. Total flooding system B. Hand hose line system C. Local application system D. Standpipe/mobile supply system Question 7 1 out of 1 points 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? Selected Answer: C. Enclosure integrity test Answers: A. Operation test B. Visual inspection C. Enclosure integrity test D. Hydrostatic tests Question 8 1 out of 1 points What designation is given to inert gases that have a mixture of helium, neon, argon, nitrogen, and small amounts of carbon dioxide? Selected Answer: C. IG Answers: A. IE B. IH C. IG D. IC Question 9 1 out of 1 points What is considered to be the main component of the aerosol extinguishing system? Selected Answer: D. Aerosol generator Answers: A. Nozzles B. Piping and valves C. Activation station D. Aerosol generator Question 10 1 out of 1 points When carbon dioxide is stored at _____, it is considered low-pressure storage. Selected Answer: D. 300 psi Answers: A. 850 psi B. 250 psi C. 120 psi D. 300 psi Question 11 1 out of 1 points Which carbon dioxide delivery system is primarily installed at industrial facilities for use by trained personnel and the fire department? Selected Answer: A. Standpipe/mobile supply system Answers: A. Standpipe/mobile supply system B. Total flooding system C. Local application system D. Hand hose line system Question 12 1 out of 1 points Which carbon dioxide delivery system protects enclosed hazards, rooms, and areas within a structure by filling the entire enclosure? Selected Answer: B. Total flooding system Answers: A. Standpipe/mobile supply system B. Total flooding system C. Hand hose line system D. Local application system Question 13 1 out of 1 points Which delivery system is the best for delivery of Halon 1211, since the agent expands as a mixture of liquid droplets and vapor upon discharge? Selected Answer: B. Local application system Answers: A. Total flooding system B. Local application system C. Hand hose line system D. Standpipe/mobile supply system Question 14 1 out of 1 points Which gaseous agent is a mixture of carbon and one or more elements from the halogen series (fluorine, chlorine, bromine, or iodine)? Selected Answer: A. Halon Answers: A. Halon B. Carbon dioxide C. Oxygen D. Nitrogen Question 15 1 out of 1 points Which of the following activation methods is NOT used to discharge the carbon dioxide extinguishing system? Selected Answer: C. Manually by a fire alarm communication center Answers: A. Manually by a person through mechanical means B. Manually by a person initiating the electronic activation C. Manually by a fire alarm communication center D. Automatically by a type of detector Question 16 1 out of 1 points Which of the following extinguishing systems offer an alternative to clean agent and specialized water-based fire protection systems? Selected Answer: A. Aerosol extinguishing systems Answers: A. Aerosol extinguishing systems B. Halogenated extinguishing systems C. Carbon dioxide extinguishing systems D. Clean agent extinguishing systems Question 17 1 out of 1 points Which of the following is a class of fire upon which clean agents are not effective? Selected Answer: C. Class D Answers: A. Class B B. Class C C. Class D D. Class A Question 18 1 out of 1 points Which of the following is considered a clean agent to replace halons, thereby easing the environmental concerns and potential toxicity of the halon? Selected Answer: C. Halocarbon Answers: A. Carbon-free agent B. Oxyclean agent C. Halocarbon D. Carbon dioxide Question 19 1 out of 1 points Which of the following is the correct mixture for Halon 1211? Selected Answer: B. One part carbon, two parts fluorine, one part chlorine, one part bromine Answers: A. One part fluorine, two parts carbon, one part chlorine, one part bromine B. One part carbon, two parts fluorine, one part chlorine, one part bromine C. One part chlorine, two parts fluorine, one part carbon, one part bromine D. One part bromine, two parts fluorine, one part chlorine, one part carbon Question 20 1 out of 1 points Which of the following is true of the condensed generator and the dispersed generator for aerosol generation? Selected Answer: B. They are identical and are used in conjunction with each other. Answers: A. The condensed generator hangs from the walls or ceiling. B. They are identical and are used in conjunction with each other. C. The dispersed generator already contains the chemical agent. D. The condensed generator has no piping, where the dispersed generator has piping. Question 21 1 out of 1 points __________ is a colorless, odorless, noncombustible, nonconductive gas that exists in the air at a very small yet detectable level. Selected Answer: C. Carbon dioxide Answers: A. Halon B. Nitrogen C. Carbon dioxide D. Oxygen

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