Chapter 4 FF2 Please enter your email: 1. Knowing types of doors and door hardware can help firefighters: select correct forcible entry tools. judge roof safety. select the right type of vertical tactical ventilation. predict fire development. 2. How much is added to the weight of floors for every U.S. gallon (SI liter) used during suppression? 5.22 pounds (2.37 kilograms) 8.33 pounds (3.69 kilograms) 10.22 pounds (4.63 kilograms) 6.25 pounds (2.83 kilograms) 3. Vertical tactical ventilation can be defined as channeling smoke from the: point in a building that has the most windows. highest point in a building. lowest point in a building. point in a building that has the least windows. 4. When exposed to temperatures above ___ unprotected steel will expand and twist. 1,000°F (538°C) 300°F (149°C) 900°F (482°C) 500°F (260°C) 5. Which of the following BEST describes when structural collapse may occur? It can occur well after the fire is extinguished. It can only occur during fire suppression. It can only occur before fire suppression. It can occur when all the factors are met. 6. Fuel loading is defined as the maximum heat produced if: no combustible materials are present. nothing but combustible materials are present. none of the combustible materials in a given area burn. all combustible materials in a given area burn. 7. For which type of construction is flying glass the primary collapse zone hazard concern? Type IV Type III Type V Type I 8. Which type of roof is used whenever large open floor spaces with limited interior support is needed? Bowstring truss Sawtooth Lantern Mansard 9. The critical temperature for steel trusses is: 1,000°F (538°C) 900°F (482°C). 300°F (149°C). 500°F (260°C). 10. When a collapse is imminent, personnel ___ in the collapse zone. should never work are allowed to work may cautiously place an unstaffed master stream may stay for twenty minutes 11. In what fire stage is structural collapse very likely? Incipient Growth Fully developed Decay 12. Which of the following BEST describes a possible construction hazard? Danger increases because occupants and belongings remain in one part of the building while work goes on in the other. Furnishings may contribute to fire spread. Fire detection systems may be damaged. The building is subject to rapid fire spread because protective features are not in place. 13. Renovation, age of the structure, weather, and loads are all: building construction hazards. renovations hazards. structural collapse factors. impossible to estimate the impact of on a structure. 14. What is the most effective defense against heavy content fuel loading? Not allowing the use of combustible materials in construction Restricting the types of combustible materials used Proper inspection and code enforcement Adopting local standards that limit multistory buildings 15. Which of the following BEST describes where the collapse zone is established? Near any area that is 10 feet (3.04 m) from exterior walls Adjacent to any exposed exterior walls Adjacent to any exposed interior walls Near any area that is 20 feet (6.09 m) from exterior walls 16. Which of the following BEST describes a primary dangerous building condition? Conditions that permit occupants to safely escape Conditions that allow tactical ventilation Conditions that suppress fire Conditions that contribute to fire spread 17. A collapse zone for a Type IV structure should be established when: the structure has been weakened by repeated fires over time. its veneer begins to curtain collapse. walls begin to shift because the building is twisting. it has been determined that glass shards will be directed at on-scene personnel. 18. Which of the following must be considered when deciding the size of a collapse zone? Local adopted building codes Number of personnel on-scene and type of building construction Number of personnel on-scene Type of building construction and safest location for personnel 19. A collapse zone must be established when: a defensive strategy has been adopted. there is no evidence of structural instability. mortar between masonry shows no sign of deterioration. furnishings and finishes do not overwhelm fire suppression systems. Loading … Question 1 of 19
