IFSTA 7 - Chapter 11 - Tactical Ventilation Exam Questions And Answers 100% Solved

IFSTA 7 - Chapter 11 - Tactical Ventilation Exam Questions And Answers 100% Solved Which type of ventilation is accomplished by using fans, blowers, or smoke ejectors to create negative or positive pressure? Select one: a.Mechanical ventilation b.Hydraulic ventilation c.Natural horizontal ventilation d.Primary horizontal ventilation - answera. Mechanical ventilation Which type of ventilation consists of opening doors and windows to allow air currents and pressure differences to remove heat and smoke from a building? Select one: a.Secondary horizontal ventilation b.Mechanical ventilation c.Hydraulic ventilation d.Natural horizontal ventilation - answerd. Natural horizontal ventilation Which type of ventilation requires that firefighters operating the nozzle remain in the heated, hazardous atmosphere throughout the operation? Select one: a.Primary horizontal ventilation b.Hydraulic ventilation c.Mechanical ventilation d.Natural horizontal ventilation - answerb. Hydraulic ventilation What is the goal of positive-pressure ventilation (PPV)? Select one: a.Increase pressure to higher than the exterior of the structure b.Equalize interior and exterior pressure c.Increase pressure to higher than the fire can produce d.Decrease pressure to lower than the exterior of the structure - answera. Increase pressure to higher than the exterior of the structure Firefighters use ventilation to control: Select one: tural integrity of buildings. toxicity of products of combustion. hot gases and smoke exhaust from a structure. amount of fuel available for the fire. - answerc. where hot gases and smoke exhaust from a structure. The longer a structure or compartment is allowed to ventilate without water being applied, the sooner _____ occurs. Select one: mittent improved fire conditions ition to fuel-limited conditions over raft - answerc. flashover Which is an example of vertical ventilation? Select one: a.Opening upper story windows or balcony doors b.Directing a hose stream through an upper story window c.Opening existing roof access doors, scuttles, or skylights d.Rerouting HVAC equipment for smoke removal - answerc. Opening existing roof access doors, scuttles, or skylights Which is a condition specific to tactical ventilation that should be communicated to crew members and/or a supervisor? Select one: a.Wind direction and strength b.Ambient temperature c.Relative humidity d.Barometric pressure changes - answera. Wind direction and strength Which type of fires are difficult to access without effective ventilation because firefighters would have to descend through intense rising heat and smoke to get to the seat of the fire? Select one: a.High-rise fires b.Fires in windowless buildings c.Basement fires d.Warehouse fires - answerc. Basement fires Which type of ventilation is usually required for fires in windowless buildings? Select one: a.Primary and secondary ventilation b.Hydraulic ventilation c.Natural ventilation d.Mechanical ventilation - answerd. Mechanical ventilation Which inspection hole is the easiest and fastest to cut? Select one: a.Box cut b.Kerf cut c.Trench cut d.Triangle cut - answerb. Kerf cut Which is an indication of possible roof collapse? Select one: a.Melting asphalt b.Swirling winds above the roof c.Smoke coming from upper windows d.Building systems such as HVAC shutting down - answera. Melting asphalt Tactical ventilation should be coordinated with an emphasis on: Select one: olling resources used. ure protection. ing personnel at the fire scene. olling oxygen availability. - answerd. controlling oxygen availability. Unplanned ventilation can significantly influence _____ in ventilation-limited fires. Select one: behavior e locations ble entry operations - answera. fire behavior Which tools would be used to open a ceiling after a ventilation hole has been made in the roof? Select one: a.Power saws b.Axes c.Pike poles d.Chain saws - answerc. Pike poles When ventilation work on a roof is complete, personnel should: Select one: t hose streams onto the roof. back-up ventilation points. n on the roof to monitor ventilation. ate the roof promptly. - answerd. evacuate the roof promptly. When ventilating shingle-covered pitched roofs, always cut exhaust openings: