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IFSTA 7th EDITION ALL CHAPTERS
EXAM WITH QUESTIONS AND
ANSWERS 2024
When working on a roof, ground ladders should be extended at least ____ Rungs above the edge of roof, or top of parapet wall - ANS-At least 3 rungs (P. 515) Two types of inspection cuts: - ANS-Kerf Triangle (P. 518) Transports water from a fire hydrant or other water supply source to an apparatus equipped with a pump. - ANS-Supply Hose (P. 541) Transports water or other agents, at increased pressure to the fire - ANS-Attack Hose (P. 541) Hose generally constructed in 10 Foot lengths and designed for drafting water from static water sources. - ANS-Hard Suction Hose (P. 542) Portion of the coupling that serves as a point of attachment to the hose is the - ANS-Shank (P. 544)
Flattened angle at the end of the threads on the male and female couplings. Prevents cross threading when couplings are connected. - ANS-Higbee cut (P. 544) Type of lugs on couplings: (3) - ANS-Pin, Recessed, and Rocker Lugs (P. 545) The formal line of authority, responsibility, and communication within an organization - ANS-chain of command (P. 14) When an employee reports directly to just one supervisor. - ANS-Unity of Command (P. 14) Span of Control - ANS-3 to 7. Optimal 5 (P. 14) Personnel that deliver emergency services to the public. - ANS-Line Personnel (P. 16) Personnel that provide administrative and logistical support for line personnel. - ANS-Staff Personnel (P. 16) Guide to decision-making within an organization. Sets boundaries and establish standards of conduct. - ANS- Policy (P. 21) Detailed written plans that list specific steps for approaching a recurring problem/situation. - ANS-Procedure (P. 21)
Personnel who are directly supporting personnel. Personnel in this zone are also in full protective clothing. - ANS-Warm Zone (P. 40-41) This zone may include incident command posts, rapid intervention crews, PIO, rehabilitation and staging (crews and equipment). - ANS-Cold Zone (P. 41) How should scene lighting be positioned on roadways? - ANS-Directed toward the scene, not into the eyes of approaching drivers. (P. 42) Electrical wires in contact with the ground, causing current to flow outward in all directions. - ANS-Ground Gradient (P.
- (Definition: P.48) How far away should you be from a downed power line? - ANS-Approximately 2 poles away (P. 45) Central location that takes all emergency calls and routes the call to the fire, emergency medical, or law enforcement dispatcher. - ANS-Public Safety Answering Point (P. 58) Ex. : JMTC Use of plain English in radio communications transmissions. No 10-codes or agency specific codes are used. - ANS-Clear Text (P. 71)
Different Types of Radio Systems? (3 Types) - ANS-Base Station Radios (telecommunications centers, training centers, admin offices) Mobile Radios (Apparatus) Portable Radios (Handheld) (P. 63-64) Communications that allow the same radio channel to be used by other groups that are located at a greater distance from the first group. - ANS-Direct Communication (P. 66) Communications used to strengthen signals between radios, increase distance of transmission, or increase the capacity on the system. - ANS-Repeated communications (P. 66) Radio Limitations? (5) - ANS-Distance Physical Barriers Dead zones Interference Ambient Noise (P. 66) Methods of overcoming physical barriers (Communications)
- ANS-Turn body 90˚ Lift radio higher Raise antenna up straight (P. 67)
Pitched Chord Bowstring Truss (P. 94) Door consisting of vertical and horizontal members that frame a rectangular area? - ANS-Panel Door (P. 104) Door consisting of flat face panels that are full heigh and width of the door? - ANS-Flush (P. 104) Doors that protect openings in fire-rated walls and block the spread of fire within a structure> - ANS-Fire Doors (P. 106) Windows with two sashes that can move past each other in a vertical plane? - ANS-Double-Hung (P. 109) Window with one openable sash? - ANS-Single-Hung (P.
Window with side hinged sash that is usually installed to swing outward? - ANS-Casement (P. 109) Window with two or more sashes of which at least one moves horizontally within the window frame? - ANS- Horizontal sliding (P. 109) Window with one or more top-hinged, outward-swinging sashes that are opened by unlatching and pushing using the mechanical window crank? - ANS-Awning (P. 109)
Window that includes a large number of narrow overlapping glass sections swinging outward? - ANS-Jalousie (P. 109) Window that swings outward at the top or bottom and slides upward or downward in grooves? - ANS-Projecting (P. 110) Windows that have a sash that pivots horizontally or vertically on a central axis? - ANS-Pivoting (Vertical or Horizontal) (P. 110) Refers to a fixed or movable framed unit that may be included within a window. - ANS-Sash (P. 108) Chemical reaction involving the combination of an oxidizer?
- ANS-Oxidation (Ex. oxygen and air) (P. 118) Forms of Energy? - ANS-potential energy and kinetic energy (P. 119) Measurement unit that represents energy? - ANS-Joules (J) (P. 119) Quantity of heat required to change the temperature of 1 gram of water by 1 degree Celcius? - ANS-4.2 Joules (P. 119) Chemical reactions that emit energy? - ANS-Exothermic Reactions (fire: releases energy in the form of heat and light) (P. 120)
Combustion that occurs slowly, at a lower temperature, producing a smoldering glow in the material's surface. - ANS-Nonflaming Combustion (P. 123) Combustion that produces a visible flame above the material's surface. Commonly referred to as fire. - ANS- Flaming Combustion (P. 123) Aerosol comprised of gases, vapor, and solid particles. Product of "Incomplete Combustion" - ANS-Smoke (P. 124) Different products of combustion? (3) - ANS-Carbon Monoxide (CO) - Colorless & Odorless, Decreases bloods ability to carry oxygen Hydrogen Cyanide (HCN) - Contains nitrogen, 35 times more toxic than CO Carbon Dioxide (CO2) - Non-Toxic, still displaces existing oxygen (P. 124 - 126) Ignition without the addition of external heat? - ANS- Spontaneous Ignition (P. 129) Mechanisms of heat transfer (3). - ANS-Conduction - Direct contact with a heat source Convection - Circulation or movement of a fluid (Liquid or Gas) Radiation - Electromagnetic Waves (P. 131)
Factors influencing radiant heat - ANS-Nature of the exposed surfaces Distance between heat source and exposed surfaces Temperature of heat source (P. 133) describes the density of gases in relation to air - ANS-Vapor density (Less than 1 will rise, greater than 1 will sink) (based upon assumption that the density is measure at standard temperature and pressure) (P. 138) Ratio of the mass of a given volume of liquid compared to the mass of an equal volume of water at the same temperature. - ANS-Specific Gravity (Less than 1 will float, greater than 1 will sink) (P. 138) Minimum temperature at which a liquid gives off sufficient vapors to ignite, but not sustain combustion, in the presence of a piloted ignition source. - ANS-Flash Point (P.
Temperature at which a piloted ignition of sufficient vapors will begin a sustained combustion reaction. - ANS-Fire Point (P. 139)
When fires have access to all of the fuel needed to maintain combustion. - ANS-Ventilation-Limited Fires (P. 145) 4 Stages of Fire Development - ANS-Incipient, Growth, Fully Developed, Decay (P. 146) Hot gasses in the plume rise until they encounter the ceiling and then spread horizontally. - ANS-Ceiling Jet (P. 146) When gases form into layers according to temperature, gas density, and pressure. - ANS-Thermal Layering (P. 150) Space between the air intake and the exhaust outlet. - ANS- Flow Path (P. 150) Interface between the hot gas layers and cooler layer of air. - ANS-Neutral Plane (P. 150) Rapid transition from growth stage to the fully developed stage of a fire. Combustible materials and gases in the compartment ignite almost simultaneously. - ANS- Flashover (P. 153) Condition where the unturned fire gases that have accumulated at the top of a compartment ignite and flames propagate through the hot gas layer or across the ceiling. - ANS-Rollover (P. 154)
4 Elements of Flashover - ANS-Transition in fire development, Rapidity, Compartment, Pyrolysis of all exposed fuel surfaces. (P. 154) Methods of controlling flowpath? - ANS-Tactical Ventilation Door Control (P. 162) Critical Temperature of steel. Temperature at which steel begins to weaken. - ANS-1000˚ (P. 174) Two basic functions of station and work uniforms. - ANS-1. Identify the wearer as a member of the organization
- Provide a layer of protection against direct flame contact Protective coats and trousers must be made of what 3 components? - ANS-1. Outer Shell
- Moisture Barrier
- Thermal Barrier (P. 190 - 191) PASS (Personal Alert Safety System) must meet what requirements? - ANS-1. At least 95 Decibels
- Must go off continuously for at least 1 hour (P. 194) Maximum noice exposure levels? - ANS-90 Decibels U.S. ( canada)
replace air cylinder IC orders a non-emergency withdrawal assignment completed (P. 227) Emergency exit indicators (6) - ANS-Activation of SCBA Low- Pressure Alarm SCBA failure Withdrawal orders issued by IC or Safety Officer Change in environmental conditions Change in o2 levels Indications of new hazard (P. 227) Point at which air in SCBA will last only long enough to exit a hazardous atmosphere. - ANS-Point of No Return (P. 230) Exception when a member may work alone in an IDLH? What should the second member be doing outside? - ANS-In a confined space were two members cannot fit. Second team member should remain outside the area monitoring the search line. (P. 228) Fire Classifications (5) - ANS-A - Ordinary Combustibles (Green Triangle) B - Flammable Liquids (Red Square) C - Electrical Equipment (Blue Circle) D - Combustible Metals (Yellow Star) K - Cooking Oils (Black Octagon)
(P. 255)
Class A Fire Extinguisher Rating Parameters - ANS-1A-40A (P. 255) Calculation for water capacity of a Class A Extinguisher - ANS-Multiply the number in front of the "A" by 1 and 1/ Gallons (P. 255) Class B Fire Extinguisher Rating Parameters based on approximate square footage - ANS-1B-640B (P. 256) Methods of extinguishing a fire (4) - ANS-Smothering - Excluding oxygen from burning process Cooling - Reducing the burning material below ignition temperature Chemical Flam Inhibition - Interrupting the chemical chain reaction Saponification - forming an oxygen-excluding soapy form surface (P. 258) Kernmantle Rope - ANS-Sheath - Mantle Core - Kern The core of a kernmantle rope accounts for ________ % of total strength? - ANS-75% (P. 279)
(PER IFSTA) the tail on a water knot should be at least _____ inches long. - ANS-3 inches (P. 291) PER OSHA, what piece of equipment shall NOT be raised or lowered with rope or webbing? - ANS-Pressurized cylinders (SCBA Cylinders) (P. 291) Non-load-bearing rope used in conjunction while hoisting equipment to prevent the spinning and snagging of the equipment - ANS-Tag Line (P. 291) Definition (P. 297) 5 Types of Ground Ladders - ANS-Single Folding Combination Extension Roof (P. 318) Designated ladder length must be marked within _____ inches of the butt plate - ANS-12 inches (P. 320) What temperature is the heat sensor preset to on a ground ladder? - ANS-300˚F (P. 321) Ladders shall not be raised within ____ Feet of electrical wires. - ANS-10 Feet (P. 324)
A residential story averages ____ Feet with a distance of ___ Feet from the floor to the window sill. - ANS-10 Feet, 3 Feet (P. 327) A commercial story averages ____ Feet with a distance of ___ Feet from the floor to the window sill. - ANS-12 Feet, 4 Feet (P. 327) For lengths of 35 Feet or less, the REACH is approximately ___ Feet less than the DESIGNATED length - ANS- Approximately 1 foot less (P. 329) For lengths over 35 feet, the REACH is approximately ___ Feet less than the DESIGNATED length - ANS-Approximately 2 Feet Less (P. 329) Two objectives to be met when placing ground ladders: - ANS-1. Position the ladder properly for its intended use.
- Place the butt the proper distance from building for safe and easy climbing. (P. 333) How do you determine the proper distance between the butt of the ladder and the building? - ANS-Divide the working length (length actually used) of the ladder by 4 (P. 333) Basic categories of forcible entry tools (4) - ANS-Cutting Prying Push/Pull
