SCBA || with Right Answers.
What does IDLH stand for? correct answers Immediately dangerous to life and health
What are some respiratory hazards of fire? correct answers Smoke particles, smoke vapors, toxic
gases, oxygen deficient atmospheres
What is smoke defined as? correct answers Collectively, the airborne products of (incomplete)
combustion
What are the three major components of smoke? correct answers Particles, vapors, and gases
What are smoke particles? correct answers Unburned, partially burned, and completely burned
substances
What is a completely burned particle called? correct answers Ash
What are smoke vapors? correct answers Smoke vapors are similar to fog, and so when oil-based
compounds burn, they produce small hydrocarbon droplets that become part of the smoke
Carbon monoxide (CO) binds to hemoglobin ___ times more readily than oxygen does. correct
answers 200
What is an odorless, colorless, and tasteless gas which even a small concentration can quickly
disable and kill a firefighter? correct answers Carbon monoxide (CO)
What toxic gas is formed when plastic products - such as polyvinyl chloride (PVC) pipe - burn?
correct answers Hydrogen cyanide
What gas is formed from incomplete combustion of many common household products,
including vinyl materials? correct answers Phosgene gas
At higher levels, phosgene gas can cause ___ ___ (fluid retention in the lungs) and ___. correct
answers Pulmonary edema; death
What are other gases (besides CO, hydrogen cyanide, and phosgene) that may affect the human
body in harmful ways? correct answers Hydrogen chloride, several compounds containing
different combinations of nitrogen and oxygen, and carbon dioxide (CO2)
Normal outside or room air contains ___ percent oxygen. correct answers 21
At ___ percent oxygen, judgement and coordination are impaired; there is a lack of muscle
control. correct answers 17
At ___ percent oxygen, headache, dizziness, nausea, and fatigue occur. correct answers 12
What does IDLH stand for? correct answers Immediately dangerous to life and health
What are some respiratory hazards of fire? correct answers Smoke particles, smoke vapors, toxic
gases, oxygen deficient atmospheres
What is smoke defined as? correct answers Collectively, the airborne products of (incomplete)
combustion
What are the three major components of smoke? correct answers Particles, vapors, and gases
What are smoke particles? correct answers Unburned, partially burned, and completely burned
substances
What is a completely burned particle called? correct answers Ash
What are smoke vapors? correct answers Smoke vapors are similar to fog, and so when oil-based
compounds burn, they produce small hydrocarbon droplets that become part of the smoke
Carbon monoxide (CO) binds to hemoglobin ___ times more readily than oxygen does. correct
answers 200
What is an odorless, colorless, and tasteless gas which even a small concentration can quickly
disable and kill a firefighter? correct answers Carbon monoxide (CO)
What toxic gas is formed when plastic products - such as polyvinyl chloride (PVC) pipe - burn?
correct answers Hydrogen cyanide
What gas is formed from incomplete combustion of many common household products,
including vinyl materials? correct answers Phosgene gas
At higher levels, phosgene gas can cause ___ ___ (fluid retention in the lungs) and ___. correct
answers Pulmonary edema; death
What are other gases (besides CO, hydrogen cyanide, and phosgene) that may affect the human
body in harmful ways? correct answers Hydrogen chloride, several compounds containing
different combinations of nitrogen and oxygen, and carbon dioxide (CO2)
Normal outside or room air contains ___ percent oxygen. correct answers 21
At ___ percent oxygen, judgement and coordination are impaired; there is a lack of muscle
control. correct answers 17
At ___ percent oxygen, headache, dizziness, nausea, and fatigue occur. correct answers 12
