...ME 303 MANUFACTURING ENGINEERING PROBLEM SETS Prepared by: Kamil Özden Ural Uluer Salih Alan Mehmet Bilal Atar PROBLEM SET FOR CHAPTER 2 Q2.1 A copper bar is to be cold rolled into a section which must have a min. tensile strength of 390 MPa. If the final cross-sectional area is 20.13 mm2 and assuming the flow properties of the workpiece material are given as K = 450 MPa, n = 0.33. Calculate the followings: a) The tensile strength of the annealed material. b) The initial diameter of the copper bar. Solution It is important to understand the question well. In this question, the copper bar is annealed first then a cold rolling operation is done on it. Initial diameter of the copper bar is same before and after the annealing operation. a) Flow stress of the plastically deformed bar could be shown as shown in Course Slides at UTS Then UTS of the original bar (no annealing, no cold working) is found as below: = 450 (0.33)0.33 = 312.12 MPa . As u u Since before necking occurs ( < n) area stays constant at the whole bar, the formula below could be used: By putting the area ratio into the formula (i) UTS of the annealed material is found as: b) For this question d0 can be found by using the ratio: if < n (which means necking is not started yet) with the UTScw value given in the question as UTScw = 390 MPa, to check the value So > n which means that necking started, then UTScw becomes equal to flow stress of the deformed material, Q2.2 A...
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...intangible assets is generally called amortization. Depreciation is a reduction in buildings and equipment and other tangible assets. Depletion is a reduction in natural resources. 8-3 Cash discounts are reductions in original cost, not income. 8-4 When an expenditure is capitalized, it is not credited to stockholders' equity. Rather, it becomes an asset with a useful life in excess of one year. Technically aAn asset is debited and generally either cash or a liability is credited. 8-5 Accumulated depreciation is not cash; if specific cash is being accumulated for the replacement of assets, such cash will be an asset specifically labeled as a "cash fund for replacement and expansion" or a "fund of marketable securities for replacement and expansion." Accumulated depreciation is the cumulative amount of an asset’s depreciable value that has been expensed. 8-6 Valuation implies some measure of present market value. In contrast, depreciation is the systematic allocation of the original cost of the asset to as an expense on the income statement over the useful life of the asset.s useful life. 8-7 Depreciation is a method of cost allocation, not valuation. It simply allocates the cost of an asset to the periods that benefit from its use. 8-8 No. Keeping two sets of books is necessary if two separate purposes are being legally fulfilled. In many cases two sets of books are required, sometimes more than two. Requirements include external financial reporting...
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...CHAPTER 14 CHEMICAL KINETICS PRACTICE EXAMPLES 1A (E) The rate of consumption for a reactant is expressed as the negative of the change in molarity divided by the time interval. The rate of reaction is expressed as the rate of consumption of a reactant or production of a product divided by its stoichiometric coefficient. A 0.3187 M 0.3629 M 1min rate of consumption of A = = = 8.93 105 M s 1 t 8.25 min 60 s rate of reaction = rate of consumption of A2 = 8.93 105 M s 1 4.46 105 M s 1 2 1B (E) We use the rate of reaction of A to determine the rate of formation of B, noting from the balanced equation that 3 moles of B form (+3 moles B) when 2 moles of A react (–2 moles A). (Recall that “M” means “moles per liter.”) 0.5522 M A 0.5684 M A 3moles B rate of B formation= 1.62 104 M s 1 60s 2 moles A 2.50 min 1min 2A (M) (a) The 2400-s tangent line intersects the 1200-s vertical line at 0.75 M and reaches 0 M at 3500 s. The slope of that tangent line is thus 0 M 0.75 M slope = = 3.3 104 M s 1 = instantaneous rate of reaction 3500 s 1200 s The instantaneous rate of reaction = 3.3 104 M s 1 . (b) At 2400 s, H 2 O 2 = 0.39 M. At 2450 s, H 2 O 2 = 0.39 M + rate t At 2450 s, H 2 O 2 = 0.39 M + 3.3 10 4 mol H 2 O 2 L1s 1 50s = 0.39 M 0.017 M = 0.37 M 2B (M) With only the data of Table 14.2 we can use only the reaction rate during the...
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...| 2012 | | | Determination of the acidity and peroxide value of vegetable oils PIEB II – MIB|MIEQ Yen Nguyen-MESG Index Abstract 3 Introduction 4 Methods and Materials 6 Results and Discussion 7 Acidity 7 Peroxide 9 Conclusion 11 References 12 Annex 14 Abstract Nowadays the quality of commercial oil is very concerned by the customers, as oxidative stability is one of the most important factors in keeping the quality of oils, fatty acids in neutral fraction, peroxide values and induction period were evaluated as stability parameters in vegetable oil, in order to detect oxidative changes during cooking, this study performed an experiment to determine the changing in acidity values and peroxide values of one vegetable oil sample in different treatment conditions. Both acidity values and peroxide values were determined using standard titration methods appropriate for each indicator. All acidity values were in range 0.7817 – 0.9138 mg KOH/kg oil and this is below the recommended maximum for acidity index, it means that the oil is accepted for consumption. However there were no significant different between samples in different temperature, this conflicts with some other studies that demonstrated the significant effect of temperature on acid value and oleic acid values. The values of peroxide were in the range of 4.14-5.87 meq/kg oil and also in the acceptable range for peroxide value. The results showed that with a small amount of BHT added (20mg/g...
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...Cairo University Faculty of Engineering Credit hours system Mechanical Design Engineering Special Topics in mechanical engineering Overhead crane Submitted To: DR. Tarek Osman Eng. Ahmed Hamed Submitted By: Abdelrahman HeshamAbdalla Ahmed Mohamed Emad 1105014 1095348 Karim Mohamed Salah EL-Din 1092177 Table of Contents M otor selection ................................................................................................................................................................................... 3 Gearbox selection ............................................................................................................................................................................... 4 Hook design......................................................................................................................................................................................... 5 Hoist Selection .................................................................................................................................................................................... 5 Cri teria for selection ...................................................................................................................................................................... 6 Design selection for rope ...........................................................................................................................................................
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...CHAPTER 9 COVERAGE OF LEARNING OBJECTIVES |LEARNING OBJECTIVES |QUESTIONS |EXERCISES |PROBLEMS |OTHER | |LO1: Account for current liabilities. |1,2,3,4 |34,35,36,37, 38,39 |53,54 | | |LO2: Measure and account for long-term |5,6,7,8,9,10, 11,12,13, |38,39,40 |54,55,56, |87,91 | |liabilities. |30,31 | |84,85 | | |LO3: Account for bond issues over their entire |14,15,16, |41 |57,58,59, 60,61,62, | | |life. |17,31 | |63,64,65, 66,67,68, | | | | | |69,70 | | |LO4: Value and account for long-term lease |18,19,20, |42 |71,72,73,74, 75,76,77 |89,91 | |obligations. |21,22 | | | | |LO5: Evaluate pensions and other postretirement |23 |43 |78,79 |88,91 | |benefits. | ...
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...ETD and its metabolites (6-OH-ETD and 7-OH- ETD) in biological fluids and extracts (before and after enzyme hydrolysis). The method used silica gel plates and hexane-ethyl acetic acid (60:40:2 v/v) and hexane-ethyl acetate (70:30 v/v) solvent systems to separate the free carboxylic acid and methyl esters of ETD and the two metabolites. The relative retention (Rf) values obtained under these conditions were 0.29, 0.20 and 0.24 for ETD, 6-OH-ETD, and 7-OH-ETD respectively. An Rf value of 0.45 was obtained for methyl ester of ETD. Another TLC method has been reported, which uses 0.25 or 2 mm silica gel plates as the stationary phase, and ethyl acetate/methanol (95:5, v/v) as developing agent. The method was used to separate ETD and metabolites in urine and bile. 3.2.2.2 High performance Liquid Chromatography (Ficarra et al., 1991) A sensitive reverse-phase HPLC method has been developed for the analysis of ETD in tablet for formulation. The chromatographic separation was achieved using a reverse-phase c18 column, having dimension of 3.3 cm x 0.46 cm (3µm particles) and which was maintained at 30°c.the mobile phase consisted of pH 6.0 phosphate buffer / methanol (60:40v/v), and was eluted at 1 ml/min. Analytic detection was effected on the basis of UV detection at 230nm. A retention time of 1.46 min was obtained for ETD under these conditions, and the method was found to be linear, precise, and accurate over the concentration range of 0.01to 0.1 mg/ml. A simple, accurate, and reproducible...
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...INTRODUCTION Review of Related Literature Pneumonitis Pneumonitis is a general term that refers to inflammation of lung tissue. It occurs when some irritating substance – solid particles, liquids, gases, radiation or bacteria – cause the tiny air sacs to become inflamed. This can hamper the exchange of oxygen and carbon dioxide in the air sacs. Pneumonia is one type of pneumonitis caused by an infection. There are several types of pneumonitis. They include: • Aspiration pneumonitis- occurs when you inhale (aspirate) foreign matter into your lungs. Stomach contents, such as ingested food or liquid, are a frequent cause of aspiration pneuomonitis. Accidental inhalation of small particles, such as tiny pieces of peanuts or vegetables, while swallowing is common in young children. • Chemical pneumonitis- is a type of aspiration pneumonitis that develops when you inhale chemicals that are toxic to your lungs. Industrial and household chemicals, such as chlorine gas, ammonia, solvents and pesticides can all cause chemical pneumonitis. • Hypersensitivity pneumonitis- is nicknamed “farmer’s lung,” “mushroom picker’s disease” and other colorful names with good reason. Dust from animal dander, molds and plants, all potential allergens, can provoke an inflammatory reaction in your lungs. Symptoms usually develop within six hours of exposure to the allergen. Some people are more susceptible to developing hypersensitivity pneumonitis than are others, although it’s...
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...2N2219A for 2N2222A Storage Temperature Max. Operating Junction Temperature Value 75 40 6 0.6 0.8 0.8 0.5 3 1.8 -65 to 175 175 Unit V V V A A W W W W o o T stg Tj C C 1/7 February 2003 2N2219A / 2N2222A THERMAL DATA TO-39 R thj-case R thj-amb Thermal Resistance Junction-Case Thermal Resistance Junction-Ambient Max Max 50 187.5 TO-18 83.3 300 o o C/W C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol I CBO I CEX I BEX I EBO V (BR)CBO Parameter Collector Cut-off Current (I E = 0) Collector Cut-off Current (V BE = -3V) Base Cut-off Current (V BE = -3V) Emitter Cut-off Current (I C = 0) Collector-Base Breakdown Voltage (I E = 0) Test Conditions V CB = 60 V V CB = 60 V V CE = 60 V V CE = 60 V V EB = 3 V I C = 10 µA 75 T j = 150 o C Min. Typ. Max. 10 10 10 20 10 Unit nA µA nA nA nA V V (BR)CEO ∗ Collector-Emitter Breakdown Voltage (I B = 0) V (BR)EBO Emitter-Base Breakdown Voltage (I C = 0) Collector-Emitter Saturation Voltage Base-Emitter Saturation Voltage DC Current Gain I C = 10 mA 40 V I E = 10 µA 6 V V CE(sat) ∗ V BE(sat) ∗...
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...Name: Fritz-Michael Parkinson Subject: Speech 211 Date: 10/14/14 General Purpose: To inform Specific Purpose: To inform my audience about the Importance of Running Thesis Statement: Running gives you strength and happiness is so many ways and put you in the best shape in your life. Introduction Running is a great form of cardio exercise helps you improve your health, controls your weight, prevent health issues and it help you improve performance such as mentally and physically disorders. “Running should be a lifelong activity. Approach it patiently and intelligently, and it will reward you for a long, long time."-Michael Sargent Body I. Running can give you a wide variety of benefits like good health, losing weight, and having a long life....
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...Myanmar Imperial College Marketing Principle Assignment front sheet Learner name Min Khant Aung Date issued 06.09.2013 Qualification Edexcel BTEC Level 5 HNC Diploma in Busin ess Completion date 10.10.2013 Assessor name Mr Ronnie Kywe Thiyan Submitted on 07.10.2013 Unit number and title Unite 1 – Marketing Principle F/601/0556 Assignment title Marketing Principle In this assessment you will have opportunities to provide evidence against the following criteria. Indicate the page numbers where the evidence can be found. Criteria referenc e To achieve the criteria the evidence must show that the student is able to: Task no. Evidence 1.1 Explain the various elements of marketing process Evaluate costs and benefits of a marketing orientation for a selected organization. Show macro and micro environmental factors which influence marketing decisions. Propose segmentation criteria to be used for products in different markets Choose a targeting strategy for a selected product/service Explain how buyers’ behavior effects on marketing activities for “Green Villa” hotel 1 7-9 1.2 2 10 2.1 3 11-13 2.2 5 15 2.3 5 16 2.4 4 14 MIN KHANT AUNG Pg.1 Myanmar Imperial College Marketing Principle 2.5 Propose new positioning for a selected product/service Explain how products are developed to sustain competitive advantage Explain how distribution is arranged to provide customer convenience Explain how prices...
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...tot T stg Tj Parameter Collector-Base Voltage (I E = 0) Collector-Emitter Voltage (I B = 0) Emitter-Base Voltage (I C = 0) Collector Current Total Dissipation at T C = 25 C Storage Temperature Max. Operating Junction Temperature o Value 60 40 6 200 625 -65 to 150 150 Unit V V V mA mW o o C C February 2003 1/5 2N3904 THERMAL DATA R thj-amb • R thj-case • Thermal Resistance Junction-Ambient Thermal Resistance Junction-Case Max Max 200 83.3 o o C/W C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol I CEX I BEX Parameter Collector Cut-off Current (V BE = -3 V) Base Cut-off Current (V BE = -3 V) Test Conditions V CE = 30 V V CE = 30 V I C = 1 mA 40 Min. Typ. Max. 50 50 Unit nA nA V V (BR)CEO ∗ Collector-Emitter Breakdown Voltage (I B = 0) V (BR)CBO Collector-Base Breakdown Voltage (I E = 0) Emitter-Base Breakdown Voltage (I C = 0) Collector-Emitter Saturation Voltage Base-Emitter Saturation Voltage DC Current Gain I C = 10 µA 60 V V (BR)EBO I E = 10 µA 6 V V CE(sat) ∗ V BE(sat) ∗ h FE ∗ I C = 10 mA I C = 50 mA I C = 10 mA I C = 50 mA IC IC IC IC IC = = = = = 0.1 mA 1 mA 10 mA 50 mA 100 mA I B = 1 mA I B = 5 mA I B = 1 mA I B = 5 mA V CE = 1 V V CE = 1 V V CE = 1 V V CE = 1 V V CE = 1 V 0.65 60 80 100 60 30 250 270 4 18 5 0.2 0.2 0.85 0.95 V V V V 300 fT C CBO C EBO NF td tr...
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...A Brief Study On SWOT ANALYSIS OF RELIANCE COMMUNICATION WITH COMPETITOR IN BHUJ AND SURROUNDING OFFICE OF [pic] PROJECT REPORT Submitted for Partial fulfillment for SRK INSTITUTE & MANAGEMENT EDUCATION MBA DEPARTMENT AFFILATED WITH GUJRAT TECHNOLOGY UNIVERCITY, AHMEDABAD JAY S. BARMEDA ROLL NO...2016 Session : 2009-2010 HISTORY OF RELIANCE The Milwaukee Land Company purchased land from C.C. and Anna Herron for a town site in 1905 and the town was named Herron, but changed to Reliance when it was decided that the name Herron sounded too much like Huron. To the southwest stood a town site named Dirkstown and all of the buildings from there were moved into Reliance once it was learned the railroad would not be going through Dirkstown. Town sites were set up by the railroad company at about 10-mile intervals. Businesses, of the day, were set up immediately, probably the land office being the first. That and the first bank and the newspaper to advertise the land transactions. The lots sold for $200 for corner lots, $150 for inside business lots, $150 for residential corner lots and $100 for inside residential lots. Peter B. Dirks and a Mr. Montgomery, of the Farmers and Merchants State Bank from Dirkstown, purchased the first corner lot. Dirks' Trust and Title Company also opened a hardware and general store. Lafferty and Schoessler...
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...Chapter 3 Accrual Accounting & Income Short Exercises (10 min.) S 3-1 Millions Sales revenue……………………………………………. 960 Cost of goods sold……………………………………… (270) All other expenses……………………………………… (300) Net income……………………………………………….. $ 390 Beginning cash………………………………………….. $ 105 Collections ($700 − $30)……………………………….. 935 Payments for: inventory………………………………. (370) everything else………………………. (285) Ending cash……………………………………………… $ 385 (10 min.) S 3-2 Statement Reports (Amounts in millions) Income statement Interest expense………………. $1.8 Balance sheet Notes payable ($3.9 + $2.3 − $2.0)…………. $4.2 Interest payable……………….. 0.1 (10 min.) S 3-3 At the end of each accounting period, the business reports its performance through the preparation of financial statements. In order to be useful to the various users of financial statements they must be up-to-date. Accounts such as cash, Equipment, Accounts Payable, Common Stock and Dividends are up-to date and require no adjustment at the end of the accounting period. Accounts such as Accounts Receivable, Supplies, Salary Expense and Salaries Payable may not be up to date as of the last day of the accounting period. Why? Because certain transactions that took place in the month may not have been recorded. The accrued salaries, which are owed to the employees yet have not been paid, are an expense related to the current period. The...
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...CHAPTER 5 COVERAGE OF LEARNING OBJECTIVES | |FUNDA- |CRITICAL THINKING EXERCISES AND | |CASES, EXCEL, COLLAB. & INTERNET | | |MENTAL ASSIGNMENT |EXERCISES | |EXERCISES | |LEARNING OBJECTIVE |MATERIAL | | | | | | | |PROBLEMS | | |LO1: Discriminate between | |23,30,37,38 |49,50,51,54,57 |66 | |relevant and irrelevant | | | | | |information for making decisions.| | | | | |LO2: Apply the decision process | |28,29,39 | | | |to make business decisions. | | | | | |LO3: Construct absorption and |A1,B1 ...
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