Download Firefighter 2 Study Guide IFSTA 7 Essentials 2024-2025.Questions & Correct Answers.Grade A and more Exams Safety and Fire Engineering in PDF only on Docsity!
Firefighter 2 Study Guide IFSTA 7 Essentials
2024-2025. Questions & Correct Answers.
Graded A
- ANSholds two levers together which hold a cap in place that stops water flow. When heat from a fire melts the link then water or air pressure in the pipe pushes the levers and cap out of the way. _________ transfer command to anyone that is not on the scene - ANSNever 5-10-12-18-20 extrication rule: - ANSFirefighters should keep 5 inches away from knee bolsters, 10 inches away from driver frontal airbags, and 12-18 inches away from side-impact curtains and should keep 20 inches away from passenger frontal airbags. A central station system - ANSis an alarm system that is constantly monitored at one location operated by an alarm company.
A crew - ANSa group of people working together A lean-to collapse - ANSpattern occurs when one outer wall fails while the opposite wall remains intact. A pancake collapse - ANSpattern is when the structure's floors collapse on top of each other with debris between them. A remote alarm receiving system - ANSis an alarm system that sends the alarm signals from the protected premises to a remote receiving station with a 24-hour staff by either a telephone line or by a radio signal. A task force - ANSis a combination of resources assembled for a specific mission or assignment. The units must have common communication capability and designated leaders.
An A-frame collapse - ANSoccurs when the floor and/or roof assemblies on both sides of a load-bearing center wall collapse creating a lean-to collapse on opposite sides of the wall and creating void spaces on both sides of the wall An auxiliary alarm system - ANSconnects a protected property with the local fire department's alarm communication center through a municipal master fire alarm box. An LDH appliance - ANSis useful to distribute water from a hydrant to multiple attack lines. Batch-mixing is the process in which - ANSfoam concentrate is mixed within a fire apparatus water tank. Branch levels - ANSNIMS-ICS organizational structure fall between the Section level and the Division level. These levels may be identified in the command structure by either Roman numerals or functional areas.The
organization level that has functional/geographical responsibility for major segments of incident operations Chain of command - ANSthe line of authority that moves from the top of a hierarchy to the lowest level Chain of custody with physical evidence first step - ANSFire scene security Chain of custody with physical evidence steps - ANSFirefighter Fire investigator Laboratory Courtroom Final disposition check valve - ANSpermits water to only flow in one direction.
Class B foam - ANSused to extinguish fires involving flammable liquids and combustible liquids. Also used to suppress vapor from fuel spills. Effective on hydrocarbons and polar solvents like ethanol. Collapse zone distance - ANSmultiply the height by 1 ½. So if building height is 30 feet the collapse zone will be 45 feet. Communication Briefings - ANSare quick communications between individuals or with a small group that deals with expectations, task assignments, or operational assignments. Communication Groups - ANSsame as divisions except that they operate within a defined functional assignment such as ventilation, water supply, etc Compressed air foam systems - ANScan be used to inject foam into water mixed with air that makes the right mix for foam fire fighting.
concealed sprinkler - ANSdeflects water downward once its removable decorative cover is released. creates a barrier between fuel gasses and possible ignition sources. - ANSSeparating Deluge Sprinkler systems - ANSare similar to dry pipe in that there is no water in the distribution piping before activation. However, all sprinklers are open in this system known as " open head sprinklers" and water will flow through all sprinklers at once. Installed at high hazard occupancies Division levels - ANShave responsibility for operations within a defined geographical area. Division of labor - ANSdividing large jobs into small jobs
rescue. Communication via elevator phone with the victims or yelling through the door is the first line of reassuring victims it will be alright and then after they are calm you can shut down the power and assess how to get the doors open. firefighting foam method that reduces water's surface tension and allows it to diffuse class A fires. - ANSPenetrating foam method that prevents air from reaching the fuel and releasing flammable vapors. - ANSSmothering Formal communications - ANSare those that are used when following the chain of command and involve a specific request or information. Frangible bulb - ANSHeat expands a heat sensitive liquid inside the frangible bulb. The internal temp rises until the bulb shatters.
Full or rigid frame - ANSthe vehicle body attaches to a rigid frame more commonly used for larger automobiles and trucks , heavy duty vehicles that carry loads Fusible link - ANS Has excellent heat resistance known as drywall or sheetrock. - ANSGypsum High pressure Pneumatic lifting bags - ANSas they inflate they lose stability and lifting power and also only extend up to 20 inches. Very durable material though. High-expansion foams - ANSused to extinguish fires in confined spaces. Wet chemicals are used to extinguish class K fires.
Incident complexity Type 2 - ANSincident requires a written IAP for each operational period. National resources needed. Incident complexity type 3 - ANSincident may require a written IAP for each operational period. Regional resources needed. Incident Complexity type 4 - ANSincident does not require a written IAP, but it does require a documented operational briefing. Incident complexity type 5 - ANSNo written IAP or documented operational briefing is required for a type 5 incident. A type 5 incident is handled with one or two single resources, the Command and General Staff positions are not activated, and the incident is contained within a few hours after arrival on scene Incident strategic goals accomplish what? - ANSLife safety, Incident stabilization, property conservation,
indicating valve - ANSis a control valve that visually shows the open or closed status. Informal communications - ANSare those that are used between team members to exchange information about the scene or task. Injection is the process in which - ANSfoam concentrate is forced into a fire stream by an external pump. Ionization smoke detector - ANSthe particles and aerosols produced during combustion that are too small to be seen by the naked eye. Radioactive materials is what these devices can pick up. Laminated glass - ANSis used for windshields and rear windows. Impact creates very long pointed shards that can be hazardous. Liquefied Petroleum Gas - ANSPropane tanks NFPA 1001 to identify different storage tanks
Medium density fiberboard - ANSis composite building material that is a type of laminated wood closely resembling hardwood and is used for doors and decorative moldings. Medium-expansion foams - ANSused to suppress vapors from hazardous material spills. Most Fire department connections have siamese inlet with at least _____ ______ connections for hoses with a _____ valve in each or ____ large connection. - ANS2 2/12 inch, clapper, one NIMS "SMART" Acronym - ANSSpecific Measurable Action-oriented Realistic Time-frame
noncoded protected premise alarm system - ANSis one in which all of the alarms in the building sound at once. Organizational flexibility - ANSBuilt into modular sections of divisions, task forces, and strike teams. Particle board - ANSis composite building material composed of small flakes of wood merged together with glue to form boards used for furniture. pattern occurs when the outer walls remain intact and the upper floors and/or roof structure fail in the middle. - ANSA V-shaped collapse pendant sprinkler - ANSdeflects water downward in a circular pattern of small water droplets. point of origin - ANSthe exact location where the heat source and the fuel came into contact to begin the fire.
Scalar structure - ANSseries of steps or decisions passed down from top to bottom of command Section levels - ANShave responsibility for major functional areas of the incident such as operations, planning, logistics, etc. siamese appliance - ANSallows firefighters to connect two 2 1/2 inch lines connected to the hydrant outlets into a single large diameter hose. sidewall sprinkler - ANSdeflects water to one side. Smoke detector Photoelectric detects? - ANSvisible products of combustion detectors work well on all types of fires and usually respond more quickly to smoldering fires than ionization Space frame - ANSAluminum skeletons that are similar to aircraft frames upon which the aluminum or plastic of the vehicle body is
attached. The internal structure of these frames provides internal support while the skin provides aerodynamics and protection. Span of control- - ANSnumber of people and functions that one individual can supervise Sprinkler connection Water flow device - ANSinitiates an alarm when water begins to flow in the system usually equipped with automatic sprinkler systems. Sprinkler deflectors - ANSdirect the water pattern down onto the fire. Steel support temperatures begin losing strength at - ANS570 degrees or 300 celsius. It elongates and buckles when heated past temperature resistance.
