Lubricant A lubricant is a substance introduced to reduce friction between moving surfaces. It may also have the function of transporting foreign particles. The property of reducing friction is known as lubricity. Lubricant is a material that reduces the friction arising due to the sliding / gliding / rolling / moving of two different components in a machinery. Friction is an undesirable process that results in (i) wear and tear of the surfaces of the moving parts (ii) loss of enormous energy as
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COMMON SYNTHETIC PLASTICS INRODUCTION Plastic molecules are made of long chains of repeating units called monomers. The atoms that make up a plastic’s monomers and the arrangement of the monomers within the molecule both determine many of the plastic’s properties. Plastics are one of the classification of polymers .If a polymer is shaped into hard and tough utility articles
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Proteins are made up of amino acids‚ which are the simplest unit of proteins. The few maintests to identify the present of the proteins are Xanthoprotic test‚ Biuret test and also Ninhydrin test.The test used to identify the present of fats are the Grease spot test. This can be carried out by using a piece of filter paper. Although it cannot identify the types of fats present but it can show the present of fats. APPARATUS 1.pH papers 2.Parafilm sheets 3.Filter paper 4.Test tubes and holder
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SOAP & DETERGENT I) Definition of Soap o Soap are sodium or potassium salts of long-chain carboxylic acids o The general formula of a soap : RCOO Na / RCOO K • R is an alkyl group which contain 12 to 18 carbon atoms. II) The history of soap manufacturing. ▪ Solvay Process - Carbon dioxide ( obtained from heating CaCo ) is passed into concentrated NaCl solution which is saturated with ammonia . NaCl +NH +H
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water. Crumpled newspaper. To make my glass cleaner‚ I began by juicing half a lemon into a liquid measuring cup. I used a sieve to keep the lemon seeds and pulp out of my cleaner. Because lemon is naturally acidic and excellent at cutting through grease and grime‚ it’s sometimes used with success to clean glass all on its own. I added it to my solution as a way to freshen the scent. Next‚ I added half a cup of white vinegar and a tablespoon of cornstarch. I used a small whisk to combine the cornstarch
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Restaurant Observation Project When given the task of finding a restaurant that has an open kitchen a restaurant that came immediately to my mind was the Roberto’s taco restaurant just down the street from my house‚ on the corner of Maryland Parkway and Harmon Avenue. I had previously dined at this establishment on numerous occasions after long nights out at our local Las Vegas watering holes‚ until learning in my food purchasing class in the fall that Roberto’s had received various demerits
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make grip more comfortable for both cutting and chopping. The preferred choice as it relates to knife handles are those that are composed of hard rubber‚ as they allow for a much firmer grip in the event that it should come in contact with any grease. Additionally knives with angle handles will tend to keep the wrist in a neutral posture depending on the task at hand however‚ this can also lead to irregular motion. Using ovens It is recommended that in any kitchen side hinged doors should be
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light corn syrup • 1/2 stick (1/4 cup) unsalted butter Special equipment • two 10- by 2-inch round cake pans print a shopping list for this recipe Preparation Make cake layers: Preheat oven to 300°F. and grease pans. Line bottoms with rounds of wax paper and grease paper. Finely chop chocolate and in a bowl combine with hot
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Sewage treatment plan Sewage treatment is the process of removing contaminants from waste water and household sewage‚ both run off (effluents)‚ domestic‚ commercial and institutional. It includes physical‚ chemical‚ and biological processes to remove physical‚ chemical and biological contaminants. Its objective is to produce an environmentally safe fluid waste stream (or treated effluent) and a solid waste (or treated sludge) suitable for disposal or reuse (usually as farm fertilizer). Origins
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Water Pollution Control On Wednesday‚ July 10th‚ 2013‚ at approximately 12:47pm‚ Mr. Tom Anderson led our group on a tour through the City of Akron’s Water Pollution Control plant. The weather was very humid‚ with a temperature of 84 degrees F‚ but felt like 97 degrees F. On this tour we learned that the purpose of this plant (which was built in 1928) is to take all of the used water and waste from the municipal sewage lines from Akron and the surrounding suburbs and run it through a cleaning
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