USA Firefighter Real Exam 2024 Questions and Answers

USA Firefighter Real Exam 2024 Questions and Answers

1. Which of the following was not suggested for personnel protection with regard to dealing with the chemical in question? A. Keep upwind of the chemical. B. Wear self-contained breathing apparatus. C. Avoid bodily contact with the chemical. D. Any chemical that may inadvertently contact the body should be washed off with large amounts of alcohol.: D.Any chemical that may inadvertently contact the body should be washed off with large amounts of alcohol. 2. If a container of ethylene oxide has been subjected to fire for a prolonged period of time, what is the recommended distance for safe evacuation?: 5,000 feet 3. What dilution of ethylene oxide with water is required to effectively inhibit its flammability?: 24: 1 4. Once ethylene oxide becomes contaminated, what kind of chemical process may occur that can generate enough heat and pressure to rupture its contain- ment?: Polymerization 5. 13. Which of the following choices is not recognized as a symptom stem- ming from ethylene oxide vapor exposure? A. Eye irritation B. Skin irritation or burns C. Irritation of the respiratory system D. Loss of muscular function: C. Irritation of the respiratory system 6. : 7. 16. Firefighters often apply a hose stream to the side of a building that is in close proximity to a fire. What is the primary reason for conducting such an operation?: Radiant heat given off by the neighboring fire may adversely affect the nearest wall.Without the coolant effect of the hose stream, enough heat may be absorbed by an exposed surface to cause ignition and create a separate blaze. 8. 17. Frequently, people use an octopus wall outlet connection to maximize the number of appliances that can be plugged into a single outlet.What would this be considered?: Unsafe, because the excessive amount of current drawn through the outlet may exceed what it is designed to handle.This may set the stage for wires to overheat or a short circuit to occur, thus causing a fire within the partition. 9. 18. What is the greatest danger aspect for someone using an aluminum ladder to install or realign a rooftop antenna?: A potential electrical shock hazard is possible when in the vicinity of power lines. **Any kind of metal ladder poses an electrical hazard if it comes into contact with an energized power line. Aluminum is a superb conductor. Choices A and B are incorrect. Choice D refers to a problem associated with aluminum ladders. However, it is not considered a greater danger than the prospect of electrocution.** 10. 19. In the process of fighting a fire, your superior officer directs you to perform a different part of the operation. If, because of the noise and commotion you do not fully hear or comprehend what was said, what should you do?: Ask your commanding officer to repeat the instruction. **Problems that occur at the fire scene that hamper the efficiency of how a fire