Fire Behavior and Combustion Principles Flashcards
6 cards from real F80 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Fire Behavior and Combustion Principles flashcards as text
What are the three elements of the fire triangle?
Answer: Fuel, oxygen, and heat
The fire triangle consists of fuel, oxygen, and heat — removing any one element will extinguish the fire.
What is flashover in fire behavior?
Answer: The rapid transition to full room involvement when all combustible surfaces ignite simultaneously
Flashover is the rapid transition where radiant heat causes all combustible surfaces in a compartment to ignite simultaneously.
Which class of fire involves flammable and combustible liquids?
Answer: Class B
Class B fires involve flammable and combustible liquids such as gasoline, oil, and grease.
What is the primary product of complete combustion of hydrocarbons?
Answer: Carbon dioxide and water vapor
Complete combustion of hydrocarbons produces carbon dioxide (CO2) and water vapor as the fully oxidized end products.
Which gas is most responsible for fire-related fatalities?
Answer: Carbon monoxide
Carbon monoxide is the leading cause of fire deaths because it is colorless, odorless, and binds to hemoglobin far more readily than oxygen.
What is backdraft?
Answer: A rapid combustion explosion caused by sudden oxygen introduction to a smoldering, oxygen-depleted fire
Backdraft occurs when oxygen suddenly enters an oxygen-depleted, smoldering enclosure, causing explosive ignition of accumulated fuel gases.