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Name________________________________Date__________________________SCBA Types and Uses QuizFirefighters suffer from over how many thousand incidents of smoke inhalation each year?3000400050006000The OSHA and NFPA define oxygen deficient atmospheres as atmospheres containing less than what percent of oxygen?21%20.5%19.5%18%At which percent oxygen level does your body begin to increase its respiratory rate to compensate for the lower oxygen concentration?21%20.5%19.5%18%_____ At which percent oxygen level does death occur within a short period of time due to heart and respiratory failure?6%9%12%17%_____ SCBA air cylinders must be able to contain pressures up to how high on some SCBA units?2200 psi3500 psi4500 psi.6200 psi_____ The main cylinder gauge and the remote gauge must read within how many psi of each other (unless the gauges read in larger increments)?10 psi25 psi50 psi100 psiWhich of the following is not one of the four basic components of an open circuit self-contained breathing apparatus?Backpack/harness assemblyCylinder assemblyLow pressure alarm assemblyFacepiece assembly_____ Emergency Breathing Support Systems use an emergency egress cylinder that provides air for approximately how many minutes?3–55–1010–1515–20_____ Airline systems allow emergency service personnel to operate how many feet away from their air supply source?3004005001000____ Personal Alert Safety Systems will automatically sound an alarm if the firefighter wearing the unit remains motionless for approximately how many seconds?30456090____ Low pressure alarms are designed to activate when the cylinder pressure drops below what percent of its weighted capacity?30%50%25%20%____ The low pressure alarm will activate when the air pressure falls to approximately what psi range?200–300 psi300–400 psi400–500 psi500–600 psi____ A SCBA cylinder rated for 30 minutes of use contains how much pressure when it is full?2000221645004516____ To what percent must a cylinder be filled prior to donning it for an emergency?60%70%80%90%____ When a 30-minute cylinder is 90% full, what will the pressure gauge read in psi?2000221645004516 ................
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