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TCFP Final Exam 2024 - 2025 VERIFIED QUESTIONS AND
CORRECT DETAILED ANSWERS A GRADE
What does "CAD" stand for? - CORRECT ANSWER>> Computer aided dispatch
- automates functions for receiving calls
- shortens time
- VERIFIES Addy Dispatcher 1st responsibility? - CORRECT ANSWER>> Get the info needed to dispatch to the correct location GPS - CORRECT ANSWER>> Global positioning system PSAP - CORRECT ANSWER>> public safety answering point; any agency that takes emergency calls from citizens in a given region and dispatches the emergency resources necessary to respond to individual calls for help. What should you do as a telecommunicater if a caller disconnects - CORRECT ANSWER>> dispatch the police to check in ANI - CORRECT ANSWER>> Automated Number Identifier - > shows caller's # TDD - CORRECT ANSWER>> Telecommunications Device for Deaf - > device used by dead for emergency services TTY - CORRECT ANSWER>> Teletype - > device used by deaf to contact emergency Can telecommunication centers receive text messages? - CORRECT ANSWER>> YES ADA - CORRECT ANSWER>> American Disabilities Act Which system is similar to the US Emergency Services system - CORRECT ANSWER>> The Canadian emergency systems Where are mobile radios found? - CORRECT ANSWER>> On an engine/ some vehicle What is a PTT? - CORRECT ANSWER>> Press to talk What is the 5 step process of receiving/dispatching emergency calls? - CORRECT ANSWER>> 1. Call receipt
- Location validation
- classification / priority
- unit selection
- dispatch ALI - CORRECT ANSWER>> Automated Location Identifier - > relies on accurate & current database Direct Line - CORRECT ANSWER>> A telephone that connects two predetermined points. National Fire Incident Reporting System - CORRECT ANSWER>> A system used by fire departments to report and maintain computerized records of fires and other fire department incidents in a uniform manner. NFPA 1061 - CORRECT ANSWER>> Complete list of qualifications for telecommunicators Time it should take to dispatch after getting a call at a center? - CORRECT ANSWER>> 60 sec Call box - CORRECT ANSWER>> A system of telephones connected by phone lines, radio equipment, or cellular technology to a communications center or fire department.
- great for rural areas Base station - CORRECT ANSWER>> a two-way radio at a fixed site such as a hospital or dispatch center. Federal Communications Commission - CORRECT ANSWER>> Federal agency that regulates the radio, television, wire, satellite and cable communications.
- licenses FD to operate radio units of radio frequency - CORRECT ANSWER>> Megahertz Duplex - CORRECT ANSWER>> radio that transmits and receives on different frequencies Repeater - CORRECT ANSWER>> A special base station radio that receives messages and signals on one frequency and then automatically retransmits them on a second frequency.
What is the numerical rating for class b extinguishers - CORRECT ANSWER>> 1B - 640B represents square footage Maximum reach of CO2 extinguisher is - CORRECT ANSWER>> 8 ft What extinguishing agent is no longer used/ limited to do its harmful effect to the environment - CORRECT ANSWER>> Halon 1211 cleaning agents are designed to replace Similarity between dry chemical and dry powder - CORRECT ANSWER>> NONE Dry powder is only for D Dry chem is for ABC Purpose of loaded stream - CORRECT ANSWER>> Resist freezing What is wet chemical used on? - CORRECT ANSWER>> Class K fires - > saponification What is used to pressurize a stored pressure water extinguisher - CORRECT ANSWER>> compressed air ex: APW Class D agents work primarily by - CORRECT ANSWER>> forming a crust over the fuel How does an extinguishing agent become rated for a certain type of fire? - CORRECT ANSWER>> By preventing rekindling of a fire once it is out NFPA 10 - CORRECT ANSWER>> Maximum floor area that can be protected by each extinguisher depends on occupancy time requirements for placing/ mounting portable extinguishers "light hazards" - CORRECT ANSWER>> combustibles present arranged so fire is NOT likely to spread Primary extinguishing mechanism of dry chemical - CORRECT ANSWER>> interrupting chemical chain Can dry chemicals freeze? - CORRECT ANSWER>> NO ... they are dry duh
how do dry chemical agents prevent rekindling - CORRECT ANSWER>> by forming a crust over the fuel P.A.S.S - CORRECT ANSWER>> Pull, Aim, Squeeze, Sweep A possible problem with application of dry chem agent on class K - CORRECT ANSWER>> Neutralization of other agents applied to fire When should an extinguisher be serviced and recharged - CORRECT ANSWER>> after each use what should be used when electronic equipment is on fire - CORRECT ANSWER>> CO2... also doesn't leave residue or ruin the equipment weight of CO2 is _____ weight of air - CORRECT ANSWER>> 1.5x What are wetting agents used for - CORRECT ANSWER>> added to water to improve penetration of fuel // used in class K what can be used on class B fires - CORRECT ANSWER>> CO2, dry chem, class B foam, Aqueous film forming foam What can be used on class A fires? - CORRECT ANSWER>> Water, Air pressured water, most class B fire extinguishers Mist deionizes water What can be used on class D fire - CORRECT ANSWER>> dry powder What can be used on class C fire - CORRECT ANSWER>> Class C agent , clean agent , CO DO NOT USE WATER can treat as A/B once electricity off What can be used to put out class K - CORRECT ANSWER>> wetting agent AFFF (Aqueous Film Forming Foam) - CORRECT ANSWER>> used for class B possibly class A DO NOT USE ON CDK
NFPA for open circuit self contained breathing apparatus - CORRECT ANSWER>> 1981 NFPA standard for personal alert safety systems - CORRECT ANSWER>> 1982 3 layers of turnout coat/ pants - CORRECT ANSWER>> Outer, moisture, thermal Gas made by burning plastic - CORRECT ANSWER>> hydrogen cyanide list a product of incomplete combustion of common household items - CORRECT ANSWER>> phosgene & CO Standard for SCBA care, maintenance, donning, doffing and minimum qualifications for firefighters - CORRECT ANSWER>> NFPA 1001 EOSTI - CORRECT ANSWER>> End of Service Time Indicator - > goes off at 25% of max pressure capacity Tie Rod - CORRECT ANSWER>> Metal bar that runs from 1 beam of the ladder to the other originally used to keep wood ladder from separating Tip of a ladder is the ___ - CORRECT ANSWER>> top Purpose of the stops on an extension ladder? - CORRECT ANSWER>> Prevent overextension When should ladder service testing be preformed? - CORRECT ANSWER>> annually Portable ladders can support up to..... - CORRECT ANSWER>> 750lbs Where should the tip of a ladder be placed for rescue operations from a window - CORRECT ANSWER>> right below the window seal placement of ladder for ventilation - CORRECT ANSWER>> Side of the window on with the tip of the ladder at the top of the sill placement for window entry on a ladder - CORRECT ANSWER>> 3 rungs above the bottom of the sill When going on a roof, how many rungs should you go above the roofline? - CORRECT ANSWER>> 5 rungs
On a 3 firefighter ladder carry where are the firefighters placed? - CORRECT ANSWER>> 3 on one side How far should the rung be from you - CORRECT ANSWER>> arm's length If a latter contacts the wall 20ft above, how far is the base from the wall - CORRECT ANSWER>> 5 ft... there is a ratio of 4 The level at which the ground intersects the foundation of a structure - CORRECT ANSWER>> grade a safety rule when climing - CORRECT ANSWER>> don't look up Ladder I-beam is usually made of ... - CORRECT ANSWER>> fiberglass 3 types of beams on ladders - CORRECT ANSWER>> trussed, I beam, solid beam Truss blocks - CORRECT ANSWER>> Separation pieces between the rails of a trussed ladder. How many feet is it from floor to floor in a house - CORRECT ANSWER>> ~8 ft How often should GROUND ladders be inspected - CORRECT ANSWER>> monthly What is the proper climbing angle - CORRECT ANSWER>> 75 degrees Floor to floor height of commercial building - CORRECT ANSWER>> 10 - 12 ft When is a ladder carried at arm's length - CORRECT ANSWER>> suitcase How are fire fighters arranged in 3 fire fighter flat ladder carry - CORRECT ANSWER>> 2 on one side, 1 on another not used unless going short distance will pivot in this carry when lifting how many points of contact should you have with a ladder? - CORRECT ANSWER>> 3 points NFPA 1901 - CORRECT ANSWER>> standard sets minimum performance standards for aerial ladders and evelating platforms NFPA 1932 - CORRECT ANSWER>> Standard on Use, Maintenance, and Service Testing of In-Service Fire Department
percent of oxygen normally found in air - CORRECT ANSWER>> 21% Backdraft - CORRECT ANSWER>> The explosive burning of heated gases that occurs when oxygen is introduced into a compartment that has a high concentration of flammable gases and a depleted supply of oxygen due to an existing fire. If you see pressurized smoke puffing in and out, it may indicate - CORRECT ANSWER>> backdraft conditions Decay phase & growth phase is... - CORRECT ANSWER>> fuel dependent Term for rapid oxidation that produces heat and light - CORRECT ANSWER>> combustion Flash point of gas - CORRECT ANSWER>> - 45 degrees Ignition Temperature - CORRECT ANSWER>> the minimum temperature at which a fuel spontaneously ignites 4 phases of fire - CORRECT ANSWER>> Ignition, growth, fully developed (includes flashover), decay when water turns to steam it expands by - CORRECT ANSWER>> 1700 List the 4 types of energy - CORRECT ANSWER>> mechanical (friction) Nuclear (split of atoms) Electrical chemical Vapor density - CORRECT ANSWER>> weight of a vapor compared to AIR specific gravity - CORRECT ANSWER>> ratio of a mineral's weight compared with the weight of an equal volume of WATER If a door is opened, smoke exits top and O2 enters bottom, where is the fire - CORRECT ANSWER>> same level as door If a door is opened, and the smoke rises and the opening clears out, where is the fire - CORRECT ANSWER>> above the level of the door
If door is opened, smoke thins and still fills the door - CORRECT ANSWER>> fire is below level of door Law of latent heat of fusion - CORRECT ANSWER>> takes 137 btus to go from solid to liquid Law of vaporization - CORRECT ANSWER>> takes 970 buts to go from liquid to vapor Color of smoke made by ordinary household materials? - CORRECT ANSWER>> white and probably slow typical flashover range - CORRECT ANSWER>> 900 - 1200 degrees What does BLEVE stand for? - CORRECT ANSWER>> Boiling Liquid Expanding Vapor Explosion A product of plastics, prevents body from using O2, and smells like almonds - CORRECT ANSWER>> hydrogen cyanide What range of oxygen is combustion still supported - CORRECT ANSWER>> 14 - 16% As surface to mass ratio of a material increases.... - CORRECT ANSWER>> The easier or less energy it takes for it to burn What helps prevent backdraft explosion - CORRECT ANSWER>> vertical ventilation Where do heat and smoke collect - CORRECT ANSWER>> ceiling How much heavier is propane than air - CORRECT ANSWER>> 1.5 times What stage of the fire is often ventilation controlled - CORRECT ANSWER>> Fully developed when atmospheres are less than _____ % they are oxygen deficient - CORRECT ANSWER>> 19. Gas with the widest flammable range - CORRECT ANSWER>> CO What heat transfer is a major contributer to fire development - CORRECT ANSWER>> radiation At what percent of O2 does unconsciousness occur - CORRECT ANSWER>> 9% 3 tactical priorities - CORRECT ANSWER>> life safety, control loss, stabilization Polar solvents - CORRECT ANSWER>> Have - OH - > ketones, acetones, ketones, esters polar solvents are all water soluble
Panel Ledge Ledge wood door - CORRECT ANSWER>> Wood with horizontal bracing Panel wood door - CORRECT ANSWER>> Made from planks. Frame is then made and planks are set in Slab wood door - CORRECT ANSWER>> common in homes solid or hollow core 2 styles of door frames - CORRECT ANSWER>> rabbet or stopped Glazing - CORRECT ANSWER>> transparent part of a window What should be used on a security roll up door - CORRECT ANSWER>> cut with a saw or torch jalousie - CORRECT ANSWER>> Use a small hand crank to open overlapping sections of tempered glass in metal frame wired glass - CORRECT ANSWER>> tempered glass with wire reinforcement Used on fire rated doors very hard to break Double/Triple-Pane Glass - CORRECT ANSWER>> used in many homes. two panes with an air pocket in between double hung window - CORRECT ANSWER>> window with two sashes, one above the other, each of which slides vertically Single hung window - CORRECT ANSWER>> Awning Window - CORRECT ANSWER>> break lower panel and operate crank casement windows - CORRECT ANSWER>> crank open Projected windows - CORRECT ANSWER>> avoid forcing entry. vise grip - CORRECT ANSWER>> used to unscrew a lock cylinder purchase point - CORRECT ANSWER>> small opening in which a prying tool can be inserted
Which saw blades are susceptible to damage - CORRECT ANSWER>> masonry and carbide tipped (most blades) to force an inward swinging door open , which part of halligan should be inserted - CORRECT ANSWER>> adz What kind of glass is used in sliding doors - CORRECT ANSWER>> tempered Tempered glass is about ___ as strong as regular glass - CORRECT ANSWER>> 4 A latch... - CORRECT ANSWER>> catches and holds the door frame Shackle - CORRECT ANSWER>> U part of a padlock Bottom part is called lock body Four categories of door locks - CORRECT ANSWER>> rim / deadbolt Mortise Cylindrical Padlocks Mortise lock - CORRECT ANSWER>> A lock or latch that is recessed into the edge of a door, rather than being mounted to its surface. cylindrical lock - CORRECT ANSWER>> Simple to install in holes drilled in the door and relatively inexpensive pad lock - CORRECT ANSWER>> What should be done before forcing entry - CORRECT ANSWER>> look for glass panel near door outward doors are used in.... - CORRECT ANSWER>> exits / commercial buildings 3 primary classifications of rope - CORRECT ANSWER>> Utility, Safety, Escape T or F Utility rope is used to support the weight of a person - CORRECT ANSWER>> FALSE Escape rope - CORRECT ANSWER>> carried by fire fighter only for self rescue from extreme situation Life safety rope is made of - CORRECT ANSWER>> synthetic fiber
With what knot do you hoist a ladder? - CORRECT ANSWER>> Figure eight on a bight What line is used to help control as items are hoisted - CORRECT ANSWER>> tag line NFPA 1983 - CORRECT ANSWER>> covers criteria for design, construction, and performance of life safety rope How many times can you use life safety rope - CORRECT ANSWER>> ONCE then must become utility Type II harness - CORRECT ANSWER>> used in fire rescues - seat harness legs and thighs what knot would you use to secure to an anchor point? - CORRECT ANSWER>> bowline Rescue rope is usually... - CORRECT ANSWER>> kermantle Type I harness - CORRECT ANSWER>> Body belt - > attach to escape ropes and ladders Occupancy - CORRECT ANSWER>> refers to how a building is used CMU - CORRECT ANSWER>> concrete masonry unit Steel reinforcing rods Spalling - CORRECT ANSWER>> Moisture is trapped in concrete and becomes heated, turns into steam, and expands, causing parts of the concrete to break away What does steel do when heated and at what temp? - CORRECT ANSWER>> elongate , 1000F Gypsum - CORRECT ANSWER>> used to protect steel and wood structural members from fire aka sheetrock, drywall High water content Heat resistant but not for too long When would an engineered wood product be used? - CORRECT ANSWER>> where extra long beams are needed fire retardant - CORRECT ANSWER>> A finish that slows the spread of flames by burning slowly
Mineral salts Thermoplastic - CORRECT ANSWER>> plastics that melt under fire Type I Construction - CORRECT ANSWER>> Fire Resistive protective steel contents will burn Type II Construction - CORRECT ANSWER>> Noncombustible Construction ( Example Metal Building) - only contents will burn easier to vertically ventilate flat roof Type III Construction - CORRECT ANSWER>> Ordinary Construction (Example building with stone on the outside) outside will not burn Hazard: fire extension through concealed spaces Max heigh : 4 stories Type IV Construction - CORRECT ANSWER>> Heavy Timber Type V Construction - CORRECT ANSWER>> Wood Frame Construction (Example a House) platform frame construction - CORRECT ANSWER>> fire stops Balloon Frame Construction - CORRECT ANSWER>> No fire stopes - > used in older buildings susceptible to fire upward through walls Masonry - CORRECT ANSWER>> Bricks, blocks, stones, and unreinforced and reinforced concrete products. Rarely affected by fire Will just crack What is used to protect metal from rust - CORRECT ANSWER>> zinc
Zoned coded alarm - CORRECT ANSWER>> A fire alarm system that indicates which zone was activated both on the alarm control panel and through a coded audio signal. Sprinkler orientations - CORRECT ANSWER>> upright pendant sidewall concealed flush Sprinkler Mechanisms - CORRECT ANSWER>> Chemical pellet Frangible Bulb Fusible Link Frangible-bulb sprinkler head - CORRECT ANSWER>> A sprinkler head with a liquid-filled bulb. The sprinkler head becomes activated when the liquid is heated and the glass bulb breaks. Activation temp of sprinkler in light hazard - CORRECT ANSWER>> 165 WPIV - CORRECT ANSWER>> Wall post indicator valve Preferred water source for a sprinkler system - CORRECT ANSWER>> municipal water Standpipe I - CORRECT ANSWER>> Only for FD 2 1/2 connections Standpipe II - CORRECT ANSWER>> 1 1/2 in hose Unsuitable for FD Standpipe III - CORRECT ANSWER>> 1 1/2 and 2 1/ Occupant use How do most smoke detectors restore after activation - CORRECT ANSWER>> They're self restoring how does a bimetallic strip act as a heat detector - CORRECT ANSWER>> strip deforms in response to heat, opening or
closing the switch Two times of flame detectors - CORRECT ANSWER>> Infrared and UV Temporal 3 - CORRECT ANSWER>> audible fire alarm How are sprinkler heads classified - CORRECT ANSWER>> temp rating Water curtain - CORRECT ANSWER>> provides exposure protection partial deluge - CORRECT ANSWER>> Only certain sprinklers go off OS & Y Valve (outside stem and yoke) - CORRECT ANSWER>> Threaded shaft to indicate position of valve If the stem is protruding it is open Controls water supply to sprinkler system How does a FD pumper supplement a sprinkler system - CORRECT ANSWER>> by hooking into FDC What sprinkler system uses accelerators and exhausters - CORRECT ANSWER>> dry pipe system Dry pipe and deluge sprinklers systems have a main valve that acts as - CORRECT ANSWER>> dam Alarm notification device - CORRECT ANSWER>> An audible and/or visual device in a fire alarm system that makes occupants or other persons aware of an alarm condition. How often should smoke detector be replaced - CORRECT ANSWER>> every 10 years Beam smoke detectors used in... - CORRECT ANSWER>> large open areas - > church, auditorium Fixed temp. heat detectors - CORRECT ANSWER>> 1 must be replaced after activation 2 least prone to false activations 3 can be slowest to activate Zoned noncoded alarm - CORRECT ANSWER>> A fire alarm system that indicates the activated zone on the alarm control panel only.
