Nozzles Used in Firefighting Modern day firefighting nozzles can be divided into three main types, smoothbore, fog, and broken stream. For arguments sake this paper will focus on the smoothbore and fog nozzles, as they are the most widely accepted to be used for direct fire attack, as opposed to the broken stream nozzle. Typically both types of nozzles have some type of control valve attached which allows the operator to start, stop or reduce the flow of water to the nozzle discharge. Smoothbore
Since the introduction of the fog/combination firefighting nozzle by Dr. Oyston Charles in the 1960 's, the discussion between the traditional smooth bore nozzle vs. fog/combination nozzle for fire attack has been ongoing and heated at times. My research has informed me that the debate between the smooth bore nozzle and fog nozzle has always and will continue to be openly controversial, particularly over the last two decades as the fire service has taken a deeper interest in firefighter safety and
Washing a car thoroughly takes five different steps to complete a clean exterior. Step1: Wheels are a good place to start, because the cleaning products for wheels work best on dry surfaces. Spray on the solution as directed by the instructions, and see if the dirt and dust is removed. Use a little more spray in bad areas to help get the wheels completely clean. Try and get all road grime and grease off of the wheels. Use a soft brush to clean cracks and crevices on the wheels, but don't scrub too
How an Aerosol Can Works At one time or another, most of us have probably used an aerosol can. With just a push of the button, we easily and quickly apply just the right amount of furniture polish, bathtub cleanser, or underarm deodorant. It is obvious to us that the aerosol can is more convenient than the old-fashioned jars of liquid polish or cans of powdered cleanser, which can spill or be applied too thickly. At the same time, however, most of us probably do not know how the aerosol
Aerosol Spray Cans Spray cans produce an aerosol, the technical term for a very fine spray. They do this by means of a pressurized propellant, which is a liquid that boils at everyday temperatures. Inside the can, a layer of gaseous pressure increased, and eventually it becomes so high that boiling stops. when the nozzle is pressed, the gas pressure forces the product up the tube in the can and out of the nozzle in a spray or foam. The propellant may emerge as well but, now under less pressure
toward them. The ones there died, but it wasn't over. His brothers and sisters keep coming to the kitchen. The little ants with all their relatives are the most annoying enemies in any family's kitchen. Initially, I used ant killer sprays to kill ants. These sprays easily clear up thousands of crawling ants at once. Nevertheless, the number of ants increased, ants invaded the bathroom next to the kitchen. I aimed thenozzle at endless lines of ants. My battle cry for the day was, "1, 2, 3, Fire!"
comment and said, "graffiti is not vandalism, but it is a beautiful crime". This comment did not make sense to me. Committing a crime, a hideous act, is not a beautiful thing to do by any means. Graffiti does not mean people can go around and draw and spray paint on other peoples property. Regardless of what types of graffiti are being expressed by the tagger, this type of self expression is considered vandalism when people decide to draw, destroy, or violate any persons property without consent. As a
of money, Teddy was able to lure the gang members into a vacant lot, faking as if he were a successful drug dealer with no gang afflictions. As the trio became more incited by the drugs and comfortable with him, DHC (the base ingredient of pepper spray) was blown into one gang members eyes. While in a surprised daze a smaller member received a hard blow in his windpipe, disabling his breathing. Then suddenly Teddy threw a kerosene filled balloon at the third, threatened him with a lighter, and demanded
through Lake View Terrace, a residential neighborhood in northern Los Angeles. After a short pursuit, King was ordered out of his vehicle at gunpoint. King refused to comply and became belligerent and uncooperative. The use of open-hand controls, pepper spray and tasers were ineffective, as King continued to assault officers while resisting arrest. More LAPD officers arrived and King was finally subdued with the use of nightsticks. Investigation later revealed King was under the influence of a combination
californicus is found from Alaska to Baja in small, shallow tidepools and tidal flats in the upper spray zone where they cannot avoid the full effect of visible and ultraviolet (UV) radiation. Individuals assemble in areas of lower radiation at midday, yet have no preference to the intensity of light at dawn and dusk (Hartline and Macmillan 1995). These
house in the white part of town, about a block from the geographic dividing line, so we went to the white school. I was one of three blacks in the entire high school. I remember my welcome sign the first day of school: "GO TO HERSHEY HIGH NIGGER" spray painted on my locker, signed in red by the KKK. In my junior year the school decided to celebrate Black History Month by devoting one afternoon's history class to a discussion of Black achievements. I was so anxious and excited. I was hoping to learn
plait in English. This is the basis of the braiding techniques or A of the ABCs. If you have ten fingers and medium long hair, you can master it. Struggling with stubborn hair takes one third of your hair setting time. To handle your hair, water-spray and comb your entangled hair well at first. Using the edge of a comb brush, part your hair down the middle. On the right side, split your hair in three equal parts, I am going to call these bundles 3 (left, toward the back of the head), 2 (center)
fragile ecosystem's ability to maintain itself. A valuable player in the balance of the environment, the ozone layer, is facing a very serious threat by man. Chloroflourocarbons (CFCs), are chemical agents commonly found in refrigerants, aerosol sprays, and in the manufacturing of Styrofoam and industrial solvents. With the rate of more than a half-million tons of CFCs being spewed into the atmosphere yearly, the rate of ozone depletion is rising at an alarming rate. If a global effort is not
unrealistic. Some common ploys cologne and perfume company’s use are: that their product will make one feel good about themselves, make one look gorgeous and make one desirable to members of the opposite sex. Take for example the advertisements for Axe body spray, in whic... ... middle of paper ... .... These commercials often portray unrealistic situations and reactions, which may mislead the consumer into believing the product will have an affect beyond the sense of smell. The most awful smelling scents
Christians "tagged" their symbolic religious graffiti on the walls of the catacombs that ran below the city. Graffiti has been recorded to be found in some form in every civilization since the dawn of urban culture.(1) In today's graffiti, the use of spray paint , fat cap markers, shoe polish and stickers has become an extension of past graffiti movements. The public art movement of today owes much to the insurgent artists of the 60's and 80's. This movement was the community's response to the need for
WOULD I WANT A FIREWALL? The Internet is a fun little playground and at the same time a hostile environment. Like any other society, it's plagued with the kind of people who enjoy the electronic equivalent of writing on other people's walls with spray paint, tearing off their mailboxes, or just sitting in the street blowing their car horns. Some people get real work done over the Internet, and some must protect sensitive or proprietary data. Usually, a firewall's purpose is to keep the intruders
Mohawk, and decides to assassinate the candidate for whom Betsy is working. After his attempt to assassinate the senator failed, Travis then goes after Sport, killing him and a Mafioso who just happened to be in the wrong place at the wrong time in a spray of bullets. After this massacre, Travis tries to kill himself in Iris's room, but has wasted so many bullets that he has none left with which to commit suicide. Nevertheless, his bloodbath turns him into a media hero, and Betsy suddenly discovers an
was doing a story on vandalism that happened on a church billboard, outside the church, and the billboard said something having to do with pro-life and the choice that they believed in. Later that night there was a huge black question mark that was spray painted on that saying. The reporter desc...
house. When I find myself in a situation like this, I’ll open the nearest window or door and push or lead it out with a broom. Small lizards I actually catch with my bare hands. Besides, I’m happy they eat flies and lizards. I don’t support or use bug spray (I think it’s completely cruel). So, back to mosquitoes: Going through the Bid Cypress Swamp, Lynette and I were trying to let mosquitoes bite us so we would be able to pop them. We weren’t fortunate though. I for one, couldn’t deal with the fact
nearly anything green, farmers have been forced to use Roundup as either a pre-emergence herbicide or a weed killer around the borders of their planting area to avoid killing their commercial crop (Sij and Stansel, 1997). Despite farmers’ inability to spray glyphosate directly on conventional crops, Roundup became “the best-selling weed-killer in the world” (Arax and Brokaw, 1997). In 1994, Roundup had net sales of approximately 1.2 billion dollars, comprising 17 percent of Monsanto’s total annual sales