Chapter 3

1. Which of the following statements about vapor density is MOST accurate?

2. What stage of fire growth is largely dependent on the characteristics and configuration of the fuel involved (fuel-controlled fire)?

3. Which of the following statements about combustible materials with high surface-to-mass ratios is MOST accurate?

4. What is the temperature at which sufficient vapors are generated to sustain the combustion reaction?

5. Which of the following statements about fuel load is MOST accurate?

6. Which of the following statements about thermal layering is MOST accurate?

7. Which source of heat is generated by friction or compression?

8. Which element was added to the basic fire model to create the fire tetrahedron?

9. Which of the following statements about fires that develop beyond the incipient stage is MOST accurate?

10. Which is an example of a hydrocarbon-based fuel?

11. Which occurs with rapid oxidation?

12. Which type of heat transfer involves the transfer of thermal energy by the circulation or movement of a fluid (liquid or gas)?

13. Which of the following is MOST correct about what occurs in a chemical reaction?

14. Which type of fire consists of vegetable-based oils and greases found in commercial kitchens?

15. What is the minimum concentration of fuel vapor and air that supports combustion?

16. Which of the following is a characteristic of polar solvents?

17. Which of the following refers to unintended resistance heating?

18. Which of the following refers to the total amount of thermal energy released when a specific fuel amount is oxidized?

19. Reactions that give off energy are called:

20. Which type of fire requires foam/dry chemical as an extinguishing agent?

21. Which of the following would extinguish a fire under the simplest model of fire behavior?

22. What stage occurs as the fire consumes the available fuel in the compartment and the heat release rate begins to decline?

23. During which stage does fire begin to influence the environment within the compartment?

24. Which of the following statements about fires originating in upper levels of a building is MOST accurate?

25. Which type of ignition occurs when a mixture of fuel and oxygen encounter an external heat source with

26. During what stage will flames extend out of the compartment openings because there is insufficient oxygen for complete combustion in the compartment?

27. The energy that transfers from a high-temperature substance to a low-temperature substance is referred to as:

28. Which of the following is a characteristic of flaming combustion?

29. Which of the following refers to energy released per unit of time as a fuel burns?

30. Converting water from a liquid to a gas requires: