In which fire accidents we should not use water ?
466768
Any grease fires. And you shouldnt rush to putting out a chemical fire with water unless you know what it is.
1129990
to not catch fire, thats what the forest stations are there for
947846
Flame thrower.Be care full not to fart at the same time.
1166728
the water substance drowns the oxygen out of the "would be fire" in the hydrogen peroxide\n\nfire needs O2 to live
370772
CO2 is not toxic to humans, although you could suffocate if the CO2 is in the air at a very high concentration, so that there isn't enough oxygen.  If there is a such a risk in a fire, you should wear a self-contained breathing apparatus.\n\nFire extinguishers should be checked for pressure at least annually.  They should be refilled after every use, even if used just for a few seconds.
335177
fire is the heat let off by oxidation (bonding oxygen to other compounds) since the oxygen in water is already bonded to hydrogen it can't be used in the oxidation of the fuel of the fire. water w/ it's high heat capacity absorbes a lot of energy  and also prevents oxygen from getting to the fuel.
703586
Don't burn your rubble unless you have running water. Sorry ehm.
1051096
# Fire Brigades at regular distances\n# The electrical wires and all, should not kept in the open\n# People should be more carefull when doing electrical or fire   work\n# Maximum occupancy listing (Making sure that an area isn't so full of people that they can't all get out quickly in an emergency). \n# fire exits and proper signage of them (e.g., Exit signs pointing to them that can function in a power failure) \n# Placing fire extinguishers and fire alarms in easily accessible places. \n#Banning of over-flammable materials for building or use.\n# Installing fire alarm control panels for quick detection and warning of fire.
429203
mostly chlorine. I think a lot of the water fountains and tap water have chlorine in it to keep it safe. But some people are alergic to it, and it isnt the healthiest thing in the world. But it shouldnt do TOO much harm. In some other areas there might be a bit nastier chemicals like... mercury?\nhaha. But I think people boil the water first to kill any unwanted microsopic things that miught be livingn in there. But... I dont think having germies in water is that big of a problem in the U.S. eh. But i guess you can never be too safe.
445475
white. \nBuring magnesium is white hot, and believe me you wouldn't want to be near it when it does go up.  It is hot enough to break down the molecular structure of water into oxygen and hydrogen and then ignight the following gases.  Firefighters usually have to find other means to fight magnesium fires other than using water.
111874
Once something has already burned, it will not burn again. Water is the result of hydrogen burning.
85782
dont be silly of course not you could cause a fire and then where would u b. PLEASE DONT DO IT OK.
70710
electricity will spread with the water put on the fire
238623
you need 3 things for fire, spark, oxygen and something to burn.  If you add water, you cut oxygen then, you have no fire
19370
it depends on the type of wood the humidity of the air the ammount of oxygen getting to the fire the ammount of wood along with many other things
1075449
If a human is ON FIRE the fire should be doused the fastest way possible. It doesn't matter whether it is done with a blanket, a fire extinguisher, water, or rolling on the ground. Whatever kills the fire fastest is what should be used. Time is the only factor to consider (aside from the safety of the victim of course, don't rll them off a cliff).\n\nAfter the fire has been extinguished the burn should be FLOODED, not drizzled, with water. \n\nA burn is basically a big bag of boiling fat and water under the skin. Just because the fire has been removed that doesn't mean the fat and water cool down. They stay hot just like fat and water in a pan stay hot. And as long as they stay hot they keep doing damage and the burn keeps getting bigger and deeper.\n\nIt is crucial to get the heat out of the burn as fast as possible. The more water you flood the wound with the more heat it will carry away and the less severe the burn will be.\n\nDo not leave the wound in a blanket. The blanket will trap the heat and prevent even air cooling. That will reuslt in a very severe burn. If you have no water just leave the wound exposed to the air so it can cool as fast as possible.\n\nKeep washing the burn with cold water for at least 5 minutes. If it is cold and the burn covers a very large area then keep an eye on the patient's temperature, but in the case of severe burns the risk form the burn is far greater than the risk from hypothermia so apply water anyway.
147861
Fires need oxygen to burn.