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58 Cards in this Set
- Front
- Back
- 3rd side (hint)
What are the three incident priorities when performing tactical ventilation? |
A. Extinguishment, personnel safety, risk mitigation |
D. Life safety, incident stabilization, property conservation |
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Which of the following is a reason for performing tactical ventilation? |
A. Decreasing reliance on fire streams |
C. Reducing potential extreme fire behavior |
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Incident stabilization means: |
A. reducing interior temperatures. |
C. controlling and extinguishing the fire in stages. |
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When performing tactical ventilation, the highest incident priority is: |
A. life safety. |
A. life safety. |
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Which statement about tactical ventilation is MOST accurate? |
A. Tactical ventilation must be performed before fire attack. |
C. Tactical ventilation can be combined with fire attack to stabilize an incident. |
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Tactical ventilation reduces fire damage in structures and limits water damage because it: |
A. focuses on the use of foam to fight interior fires. |
C. increases speed with which interior fires can be extinguished. |
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Which characteristic of modern single-family residential construction reduces firefighter access and increases potential exposure risks? |
A. Smaller lot sizes |
A. Smaller lot sizes |
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Which of the following is a characteristic of older structure construction? |
A. Smaller lot sizes |
D. Windows that could be opened for ventilation |
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Which characteristic of modern construction produces large quantities of toxic, combustible gases during a fire? |
A. Energy efficient designs |
D. Use of plastics and other synthetic materials |
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Which of the following is a reason that modern construction may tend to contain fires for longer periods of time? |
A. Smaller lot sizes |
B. Energy efficient designs |
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Which fire behavior indicator can provide an indication of interior fire conditions by observing its volume, location, color, density, and movement? |
A. Heat |
B. Smoke |
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Velocity, turbulence, and direction are indicators of: |
A. flame. |
C. air flow. |
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In a structure fire, what part of the flow path is an open doorway? |
A. Inlet vent |
A. Inlet vent |
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Which fire behavior indicator provides visual indicators such as blistering paint or crazed glass? |
A. Heat |
A. Heat |
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Which fire behavior indicator provides visual indicators such as the size and location of the fire? |
A. Heat |
C. Flame |
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The effect or lack of effect of fire streams indicates the size and extent of the fire when observing: |
A. heat. |
B. flame. |
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Which of the following causes air flow? |
A. Combustion of interior finishings |
D. Pressure differentials inside and outside compartment |
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Which of the following factors determines the initial severity and extent of a fire? |
A. Adjacent exposures |
D. Activation of fire detection and suppression systems |
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Which of the following factors is a primary reason that firefighters should not create tactical ventilation openings in an uncoordinated manner? |
A. Can spread fire to uninvolved areas |
A. Can spread fire to uninvolved areas |
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Which of the following personnel determines if ventilation is necessary? |
A. Battalion chief |
C. Incident Commander |
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Which of the following factors have a bearing on deciding where to ventilate? |
A. Number of bystanders |
D. Indications of potential structural collapse |
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Which of the following weather conditions has the most influence on ventilation operations? |
A. Wind |
A. Wind |
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Ventilation that causes heat, smoke, and fire to be discharged through wall openings below the highest point of the building creates danger because: |
A. multiple ventilation points will be created from the openings. |
D. rising gases will ignite portions of the building above exhaust point. |
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A small structure fire that requires ventilation consisting of opening doors and windows requires at minimum: |
A. two firefighters. |
A. two firefighters. |
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Cutting a hole in the roof above the fire or opening existing roof access doors, scuttles, or skylights are all examples of: |
A. inlet ventilation. |
C. vertical ventilation. |
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Opening doors or windows is an example of: |
A. natural ventilation. |
A. natural ventilation. |
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The means of mechanical ventilation involve pulling the smoke and fire gases out through an opening and pushing ___ into the structure and displacing the smoke and fire gases. |
A. oxygen |
B. fresh air |
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Hydraulic ventilation involves using a spray nozzle set on a ___ pattern to draw the smoke out an opening such as a window or door. |
A. fog |
A. fog |
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Allowing natural air currents and pressure differences to move smoke and heat out of the building is natural: |
A. exhaust ventilation. |
D. horizontal ventilation. |
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Which type of ventilation requires no additional personnel or equipment to set up and maintain? |
A. Vertical |
C. Natural horizontal |
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Use of smoke ejectors to expel smoke and draw fresh air into a structure is a use of: |
A. positive-pressure ventilation (PPV) |
D. negative-pressure ventilation (NPV) |
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Which side of an opening should a fan be placed for negative-pressure ventilation? |
A. Leeward |
A. Leeward |
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When the natural flow of air currents and the currents created by the fire is insufficient to remove smoke, heat, and fire gases, what type of ventilation is necessary? |
A. Vertical |
D. Mechanical |
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Why must the open areas around a smoke ejector be properly sealed? |
A. To prevent expelling fire gases from the building. |
B. To prevent air from recirculating back into the building. |
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Positive-pressure ventilation (PPV) exhaust openings vary with the size of the entry opening and the: |
A. capacity of hose lines. |
B. capacity of the blower used. |
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Once an exhaust opening has been created, it is important that the cone of air from the blower: |
A. blows towards the fire. |
C. completely covers the doorway opening. |
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When ventilating a multistory building, it is best to apply positive-pressure ventilation (PPV): |
A. on the floor with the least smoke. |
D. at the lowest point of the structure. |
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To perform hydraulic ventilation, a fog nozzle should be set on a wide fog pattern to cover what percent of the opening through which the smoke will be drawn or pulled? |
A. 15 to 20 |
D. 85 to 90 |
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Which of the following may occur if the effects of horizontal ventilation are disturbed? |
A. Fire intensity increases |
A. Fire intensity increases |
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Which of the following is an advantage to using mechanical ventilation? |
A. Increases control of air flow |
C. Speeds the removal of contaminants |
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Offensive vertical ventilation is intended to aid in reaching and: |
A. extinguishing the fire. |
A. extinguishing the fire. |
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What should a firefighter do before stepping off a ladder, parapet wall, or other place of safety onto the roof of a burning building, especially if the roof surface is obscured by smoke or darkness? |
A. Ensure the safety of all personnel who are assisting. |
C. Sound the roof for structural integrity by striking with an axe. |
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An inspection hole should be cut before cutting any type of ventilation hole in the roof in an attic or cockloft fire to: |
A. ensure roof is safe. |
C. determine the fire location and direction of travel. |
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When transporting a rotary saw or chain saw to or from the point of operation, it is safest to: |
A. turn it off. |
A. turn it off. |
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Ensuring the only required openings for ventilation are made is the responsibility of the: |
A. company officer. |
D. roof ventilation team leader. |
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Why may arched roofs prevent roof ladders from lying flat? |
A. Roof ladders too long. |
B. Curvature of the roof. |
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What type of cut is used to create a fire break that stops the spread of fire in common attic structures or large structures? |
A. Trench cut |
A. Trench cut |
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When the main body of the fire is too great to extinguish, and only after the offensive vertical ventilation opening has been made, a trench cut must be created ahead of the advancing fire by at least: |
A. 10 feet. |
C. 30 feet. |
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If a trench cut is created improperly, it will place firefighters in the very dangerous position of working: |
A. behind the fire. |
B. ahead of the fire. |
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Which of the following is a factor that reduces effectiveness of vertical ventilation? |
A. Trench cuts too small |
C. Fire streams directed into ventilation openings |
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Basement fires can be challenging without effective ventilation because firefighters have to get to the seat of the fire: |
A. without the necessary tools. |
B. through intense rising heat and smoke. |
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What factor makes high-rise fires life safety considerations an even higher priority? |
A. More windows |
C. More occupants |
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Which of the following occurs to heated smoke and fire gases when they stop rising, become cooled to the temperature of the surrounding air, and spread horizontally? |
A. Stratify |
A. Stratify |
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Combustibles adjacent to the ductwork of an HVAC system should be checked in case ___ has caused additional fires. |
A. conduction |
A. conduction |
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The automatic closure of doors, petitions, windows, and HVAC systems are methods of: |
A. compartmentalizing a structure. |
A. compartmentalizing a structure. |
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Which of the following should be indicated by a smoke control system control panel? |
A. What initiated the fire |
C. Where the alarm originated |
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What do modern buildings have built-in that can contribute to the spread of smoke and toxic gases throughout a structure? |
A. HVAC systems |
A. HVAC systems |
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Operating built-in smoke control systems in a high-rise or a shopping mall with open atria should be the responsibility of: |
A. any security officer on duty. |
D. only building engineers or maintenance superintendents. |