Fire dynamics - Study guides, Class notes & Summaries

Which of the following BEST describes how understanding the physical science of fire can help firefighters? A.It keeps radiant heat from igniting fuel. B.It keeps flaming combustion from beginning. C.It translates into practical knowledge of fire behavior. D.It helps in stopping rapid fire behavior from developing. correct answers C p.208 Which of the following terms refers to a substance remaining chemically the same, but changing in size, shape or appearance? A.Chemical shift B.Physi...

IFSTA 7 - Chapter 4 - Fire Dynamics Exam Questions And Answers 100% Solved If there are no openings for lateral movement during the growth stage of a fire, the hot gases released during combustion will fill the compartment: swirling radiant current. ing at the ceiling and filling down. rmly as the room pressure equalizes. d and downward from the neutral plane. - answerb. starting at the ceiling and filling down. Which stage of fire occurs when all combustible materials in the compartme...

Combustible Liquid - Correct answer-A liquid with a flash point ABOVE 100F 12.5 - Correct answer-If the current flowing out from an electrical panel is 12.5 amps, and it then flows through an electrical load of 1500 watts, what is the amperage of the remaining current flow of the return circuit? 1000 - Correct answer-If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage? *Power (P) = current (I) x voltage (V) Watts = amps x volts 1987 - Correct answer-The y...

Essentials of Fire Fighting 7th Edition - Chapter 4: Fire Dynamics correctly answered

What is the cause of most fire deaths? Select one: a. Exposure to extreme heat and/or contact with flames and hot surfaces b. Injuries caused by falling materials or structural collapse c. Exposure to toxic gases found in smoke and/or lack of oxygen d. Accidental injuries sustained during escape and/or evacuation procedures - correct answer c. Exposure to toxic gases found in smoke and/or lack of oxygen In most compartment fires, the energy release in fire is directly proportional to the...

Essentials of Fire Fighting 7th Edition - Chapter 4: Fire Dynamics | Questions and Correct Answers | Latest Update 2024/2025 Which stage of fire development occurs when the fire is small and confined to the fuel first ignited? A. Decay B. Growth C. Incipient D. Fully developed - Answer -C. Incipient Chapter 4 - page 146 The are surrounding a heat source in which there is sufficient air available to feed a fire is the __________ zone.A. Fire B. Burning C. Combustion D. Entrainment...

IFSTA 7th Edition, Chapter 4 Fire Dynamics Exam Questions Correctly Answered 2024. Fires involve a heat-producing chemical reaction between fuel and: (117) [4.3.11] A. a catalyst. B. an oxidizer. C. free radicals. D. a reducing agent. - correct answer B. an oxidizer. When a substance changes from one type of matter into another, such as two or more substances combining to form compounds, the substance undergoes a: (118) [4.3.11] A. dissolution. B. metamorphosis. C. chemical react...

chapter 4: Fire dynamicsifsta chpt 4 : fire dynamics test questions (75) - correct answer ifsta chpt. 4 : fire Dynamics test answers What may occur if water is added to a burning liquid that is less dense than water? - correct answer the water may disperse the burning liquid instead of extinguishing it. How does the self-sustained chemical reaction influence the oxidation reaction in flaming combustion? - correct answer Increases the ratio of complete to incomplete combustion of fuel ...

Fires involve a heat-producing chemical reaction between fuel and: (117) [4.3.11] A. a catalyst. B. an oxidizer. C. free radicals. D. a reducing agent. - Correct B. an oxidizer When a substance changes from one type of matter into another, such as two or more substances combining to form compounds, the substance undergoes a: (118) [4.3.11] A. dissolution. B. metamorphosis. C. chemical reaction. D. physiological change. - Correct C. chemical reaction Which statement about energy and c...

chapter 4: Fire dynamicsifsta chpt 4 : fire dynamics test questions (75) - correct answer ifsta chpt. 4 : fire Dynamics test answers What may occur if water is added to a burning liquid that is less dense than water? - correct answer the water may disperse the burning liquid instead of extinguishing it. How does the self-sustained chemical reaction influence the oxidation reaction in flaming combustion? - correct answer Increases the ratio of complete to incomplete combustion of fuel ...