Froggy Jumps Fire Dynamics and the Built EnvironmentOnline version Test your knowledge on fire dynamics and related terms. by Suzanne Freeman 1 What is the transfer of heat energy by the movement of heated liquids or gases from the source of heat to a cooler part of the environment? a Conduction b Radiation c Convection 2 What is the temperature at 1 atm where the liquid's vapor pressure equals the atmospheric pressure? a Triple point b Flashpoint c Boiling point 3 What is the transfer of heat energy from a hot surface to a cooler surface by electromagnetic waves without an intervening medium? a Radiation b Convection c Conduction 4 What is a material that yields oxygen or other oxidizing gas, or that reacts to promote or initiate combustion of combustible materials? a Heat-release rate b Oxidizer c Heat of combustion 5 What is the temperature at which a liquid emits adequate vapors that will ignite with a spark, but not sustain combustion? a Flashpoint b Boiling point c T2 fire 6 What are the upper and lower concentration limits of a vapor or gas in air that can be ignited? a Flammable limits b Heat flux/transfer c Ceiling jet 7 What is the rate at which a fuel burns and releases its energy? a Heat-release rate b Heat of combustion c Heat flux/transfer 8 What is the total Btu (calorie) value that can be extracted from a fuel under perfect conditions? a Ceiling jet b Heat-release rate c Heat of combustion 9 What is the condition where the underburned smoke and gases accumulated in the ceiling layer ignite? a Pyrolyzate b Flameover c Backdraft 10 What is the temperature and pressure at which three phases (gas, liquid, and solid) of a substance may coexist in thermodynamic equilibrium? a Stack effect b Basic research c Triple point 11 What is the process of heat transfer through direct contact between two objects? a Conduction b Radiation c Convection 12 What is the rate at which heat energy is transferred through a surface? a Heat-release rate b Heat flux/transfer c Heat of combustion 13 What is the scientific study aimed at expanding knowledge rather than solving practical problems? a Closed system b Basic research c Stack effect 14 What is the rate at which heat is released during combustion? a Heat of combustion b Heat flux/transfer c Heat-release rate 15 What is the layer of hot gases that forms near the ceiling in a fire? a Ceiling jet b Fire plume c Backdraft 16 What is the transfer of heat through the movement of fluids, such as air or water? a Conduction b Radiation c Convection 17 What is a substance that provides oxygen to support combustion? a Triple point b Oxidizer c Pyrolyzate 18 What is the amount of heat energy released when a substance undergoes combustion? a Heat-release rate b Heat flux/transfer c Heat of combustion 19 What is the transfer of heat through electromagnetic waves? a Conduction b Radiation c Convection 20 What is the lowest concentration of a flammable substance in air that can ignite? a Stack effect b Triple point c Flammable limits 21 What is the upward flow of air in a building due to temperature differences? a Backdraft b Stack effect c Ceiling jet 22 What is the point at which a substance exists in all three states (solid, liquid, and gas) simultaneously? a Triple point b Pyrolyzate c Oxidizer 23 What is the sudden ignition of flammable gases when oxygen is introduced? a Fire plume b Backdraft c Ceiling jet 24 What is a vertical column of hot gases and smoke rising above a fire? a Fire plume b Backdraft c Ceiling jet 25 What is a standardized curve used to predict the fire resistance of materials? a Boyle's Law b Cone calorimeter c Standard Time/Temperature Curve 26 What is a device used to measure the heat release rate of a material exposed to fire? a Standard Time/Temperature Curve b Boyle's Law c Cone calorimeter 27 What is the process of a solid material turning into gas without passing through the liquid phase? a Convection b Pyrolyzate c Radiation 28 What is the pressure-volume relationship of a gas at constant temperature? a Convection b Conduction c Boyle's Law 29 What is the movement of air caused by temperature differences? a Ceiling jet b Stack effect c Backdraft 30 What is a system that does not exchange matter or energy with its surroundings? a Closed system b Standard Time/Temperature Curve c Basic research
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