【Daily Question】May 3, 2016
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To increase the popularity of the purified area, a \"One Question per Day\" campaign was launched to foster an active atmosphere for technical exchanges while providing members with certain financial rewards. (Fellow sailors, if you have any good questions, feel free to send them to me; let’s work together.) 【Question of the Day】 (Fill-in-the-blank) The four methods of extinguishing fires are ( ), ( ), ( ), and ( ). Post your answer as a reply; participating in the quiz earns you +2 wealth points. Getting all answers correct adds another +3 to +8 wealth points. Those who provide thorough analysis and explanations for the questions or answers (or include detailed calculation processes) will receive additional wealth rewards. If your answer is correct and your analysis and explanation are accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions. Cooling method, isolation method, asphyxiation method, suppression method
Cooling method, isolation method, asphyxiation method, suppression method
Cooling method, isolation method, asphyxiation method, suppression method
Isolation method, cooling method, asphyxiation method, chemical inhibition method
Isolation method, asphyxiation method, cooling method, suppression method
The four methods of extinguishing fires are (isolation), (cooling), (smothering), and (inhibition)
The four methods of extinguishing fires are (cooling method), (isolation method), (smothering method), and (chemical suppression method).
The four methods of extinguishing fires are (isolation), (smothering), (cooling), and (inhibition).
The four methods of extinguishing fires are (isolation), (smothering), (cooling), and (inhibition).
1) Isolation method: Isolate or remove the material that is on fire from the flammable substances around it, and the combustion will stop due to the lack of fuel. Such as removing combustible items near the source of fire, demolishing flammable buildings close to the fire, closing valves on pipelines for combustible gases and liquids, and reducing or preventing combustible materials from entering the combustion area, etc. (2) Asphyxiation method: Prevent air from entering the combustion area, or dilute the air with non-flammable inert gases, so that the burning material lacks sufficient oxygen and goes out. Fill container equipment with inert gases such as carbon dioxide, nitrogen, or water vapor; cover the burning materials with non-flammable or flame-retardant materials such as asbestos blankets, wet burlap sacks, wet quilts, or yellow sand; and seal the doors, windows, and openings of the building or equipment where the fire is occurring. (3) Cooling method: The extinguishing agent (water, carbon dioxide, etc.) is directly sprayed onto the burning material to lower its temperature below the ignition point, thereby stopping the combustion ； Alternatively, the fire extinguishing agent can be sprayed on the combustible materials near the source of fire, protecting them from the heat radiation of the flames and preventing new ignition points from forming. This method is the primary way to extinguish fires. (4) Inhibition method (chemical method): A fire extinguishing agent with inhibitory properties is sprayed into the burning area and participates in the combustion reaction, thereby eliminating the free radicals generated during the reaction and forming stable molecules or less active free radicals, thus bringing the combustion reaction to an end. The dry powder extinguishing agents in use today, such as 1211, belong to this category of extinguishing agents.
Cooling method, isolation method, asphyxiation method, chemical suppression method