Environmental Protection Daily Quiz 12.11: Participate for prizes; 3 answers correct and you’ll get another 3 prizes
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This post was last edited by slll611 on 2015-12-14 08:52. Today is 1211, so here’s a topic related to 1211. True or False: 1211 fire extinguishing agent is a liquefied gas with a low boiling point. It boasts advantages such as high fire extinguishing efficiency, low toxicity, low corrosivity, stability over long storage periods, no residue after use, no contamination of the protected items, and good insulating properties. It also has a strong affinity for the ozone layer; China began increasing the production of 1211 fire extinguishing agent in 2005. A is wrong and B is right. Answer: B. 1211 fire extinguishing agent is a liquefied gas with a low boiling point. It offers advantages such as high efficiency in extinguishing fires, low toxicity, low corrosivity, stability over time, no residue after use, no contamination of the protected items, and good insulating properties. However, due to its significant impact on the ozone layer, China stopped producing 1211 fire extinguishing agents in 2005.
Wrong. 1211 fire extinguishants are highly destructive to the ozone layer and are not environmentally friendly; China ceased producing 1211 fire extinguishers in 2005, as they are considered obsolete products. The common alternative to them today is the ABC type dry powder fire extinguisher.
1211 fire extinguishing agent is a liquefied gas with a low boiling point. It boasts advantages such as high fire extinguishing efficiency, low toxicity, low corrosiveness, stability over long storage periods, no residue after use, no contamination of the protected items, and good insulating properties. It also has a strong affinity for the ozone layer; China began increasing production of 1211 fire extinguishing agent in 2005. Wrong
1211 fire extinguishing agent is a liquefied gas with a low boiling point. It boasts advantages such as high fire extinguishing efficiency, low toxicity, low corrosiveness, stability over long storage periods, no residue after use, no contamination of the protected items, and good insulating properties. It also has a strong affinity for the ozone layer; China began increasing production of 1211 fire extinguishing agent in 2005. B is wrong. 1211 fire extinguishing agent is a liquefied gas with a low boiling point. It offers advantages such as high efficiency in extinguishing fires, low toxicity, low corrosivity, stability over long periods of storage, no residue left after use, no contamination of the items being protected, and good insulating properties. However, in the 1980s, it became apparent that this agent has a severe destructive effect on the Earth’s ozone layer, posing a serious threat to the human living environment. As a result, various countries took measures to phase out the use of 1211 fire extinguishers. In accordance with relevant regulations, China completely halted the production and use of 1211 fire extinguishers on December 31, 2005, and by 2010 it would also completely stop the production and use of its upgraded version, the 1301 fire extinguisher.
B is wrong – it destroys the ozone layer. China stopped producing 1211 fire extinguishing agents in 2005.
1211 fire extinguishing agent is a liquefied gas with a low boiling point. It boasts advantages such as high fire extinguishing efficiency, low toxicity, low corrosiveness, stability over long storage periods, no residue after use, no contamination of the protected items, and good insulating properties. It also has a strong affinity for the ozone layer; China began increasing production of 1211 fire extinguishing agent in 2005. A: Right B: Wrong, Wrong. It damages the atmosphere and has been forced to be phased out
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