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Description Of A Class Fire Extinguisher
766 wordsA fire extinguisher is a portable or movable apparatus used to put out a small fire by directing onto it a substance that cools the burning material, deprives the flame of oxygen, or interferes with the chemical reactions occurring in the flame. Water performs two of these functions: its conversion to steam absorbs heat, and the steam displaces the air from the vicinity of the flame. Many simple fire extinguishers, therefore, are small tanks equipped with hand pumps or sources of compressed gas ...
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Sheet Of Cellulose Nitrate Sheet Of Cellulose Polymers
571 wordsPolymers have been around longer than we have. In fact, polymers are as old as life itself, as all life on earth is based on three types of polymers, namely DNA, RNA, and proteins. But this report is about some of the earliest synthetic polymers, that is, polymers made by humans, specifically, the cellulose derivatives. The very first synthetic polymer was of course leather, a modified natural polymer, an artificially crosslinked form of the proteins found in animal skins. Leather tanning was di...
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Rules And Regulations United Airlines
1,224 wordsIn-flight aviation complications have a nine in ten chance of having been prevented by FAA (Federal Aviation Association) safety measures both in use today and being issued in the near future (Sign, 99). Some accidents are on a grand scale killing hundreds of people, while some are so small that passengers are unaware that they even happened. Meanwhile, the FAA is busy turning out new regulations, little attention is actually being paid to the jobs, making sure they are done, and done correctly....
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Hydrogen And Oxygen Combustion Engines
1,015 wordsHard to believe that the simplest atom in the universe is used in the making of the most destructive weapon known to man isnt it? Well so is the fact that it will soon (we hope) become the replacement for petroleum-based fuels, and just about every other form of fuel too. One electron orbiting one proton is all that hydrogen is, and it is mankind's future. It is easy to manufacture, (although the government says otherwise, ) safe and easy to store, and has only one by-product water. The way that...
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Fire Department Water Supply
1,308 words... ions that took place throughout the fire ravaged area. Along the eastern ridge of the fire, many high voltage power lines were burnt which eliminated power to homes in the surrounding communities and also presented complications with the fire department's electrically run hydrant system pumps. The fire companies resorted to using water from local swimming pools to put out some of the encroaching flames instead of using the pumped water from the hydrants. Fatigue, injury, and a feeling of vul...
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Fossil Fuels Poor Countries
1,136 words... green manure, farm organic wastes and composts to maintain soil productivity with maximum nutrient content. Other methods such as biological pest control, crop rotation and legumes are used in organic farming. This process is more common in developing and underdeveloped countries due to lack and cost of chemicals. Recycling materials: the UK recycles 25 % and 10 % of all materials being recycled from the respective types of waste. The following list shows the materials which are most commonl...
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Millions Of Dollars Ozone Depletion
946 wordsHalon an extinguishing agent was developed after World War II for the protection of aircraft engines. Several types were developed, and several were banned and discontinued such as halon 104. Other types were halon 1202, halon 1211, halon 1301, and halon 2402, which was never widely used in the United States due to its high toxicological concerns. Halon type 1101 was widely utilized for aircraft engines. The two most common types being; halon 1301 bromotrifluoromethane, C BrF 3, which is most co...
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Years Ago One Hundred
1,319 wordsCount Ferdinand Von Zeppelin and his crew operated their first airship nearly one hundred years ago. Airships are big controllable balloons, also known as dirigibles. Therefore three classes of airships, rigid, nonrigid and semirigid. Rigid airships (zeppelins) use framework in the interior to keep their shape. Semirigid airships are a combination of framework and gas pressure to maintain their shape. Nonrigid airships (blimps) rely solely on air pressure to keep their form. They are all propell...
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Hydrogen And Oxygen Liquid Hydrogen
1,177 wordsHydrogen in its liquid form has been used in space vehicles for years. Hydrogen has a high combustion energy per pound relative to any other fuel, meaning hydrogen is more efficient on a weight basis than fuels currently used in air or ground transportation. Hydrogen is the universes most abundant element. Most of that hydrogen though, is tied up in chemical bonds. Hydrogen can exist in either a gaseous form or a liquid form. Hydrogen is The liquid form is usually used for storage while the gase...
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Hydrogen And Oxygen Liquid Hydrogen
1,179 wordsHydrogen in it? s liquid form has been used in space vehicles for years. Hydrogen has a high combustion energy per pound relative to any other fuel, meaning hydrogen is more efficient on a weight basis than fuels currently used in air or ground transportation. Hydrogen is the universe? s most abundant element. Most of that hydrogen though, is tied up in chemical bonds. Hydrogen can exist in either a gaseous form or a liquid form. Hydrogen is The liquid form is usually used for storage while the ...
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Safe Schools Fire Department
1,390 wordsSafety in our Schools Safety in the schools can mean life and death in many situations. One way is fires. With such things as thin walls, flammable interior, or exterior, schools could turn into a flaming inferno. All schools should be routinely checked for things such as escape routes from the building and the ease of opening and closing these routes. They also should be clear from any interfering things nearby. Schools should have such things as walls inside and outside that do not have flamma...
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Positively Charged Positive Charge
1,691 wordsLightning is a discharge of static electricity in the atmosphere, which causes a bright flash of light. When lighting goes through the air, it heats the air to degrees hotter than the suns surface about 50, 000 degrees fahrenheit. This heating causes the air to expand and contract. This causes the sound called thunder. Lightning is caused by a build up of negative ions in the atmosphere which discharges into the ground causing the negative ions to go with the positive ions in the ground. Static ...
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B And C Fire Extinguishers
522 wordsEverything Anyone Could Possibly Know About Everything Anyone Could Possibly Know About Dumb Fire Extinguishers Name: I am poo September 27, 1999 Block 3, Davis Fire Extinguishers There are four different basic types of fire extinguishers. They all are used to put out fires, but each fire extinguisher is used to put out specific types of fires. Newer fire extinguishers use a picture or labeling system to tell what kind of fire they should be used on. The four basic fire extinguishers are the Dry...
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Sulfuric Acid Nitric Acid
11,285 wordsPreparation And Mechanisms Of High And Low Preparation And Mechanisms Of High And Low Grade Explosives EXPLOSIVE FORMULAS Once again, persons reading this material should never attempt to produce any of the explosives described here. It is illegal and extremely dangerous to do so. Loss of life and limbs could easily result from a failed (or successful) attempt to produce any explosives or hazardous chemicals. These procedures are correct, however many of the methods given here are usually scaled...
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