Challenging Engineering Problems with Detailed Answers

Write a full report of one to two pages on Greenhouse effects and climate change covering the following points: > A background on climate change > Causes leads to climate change Available solution
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Which of the following issues are under the key element of "Support" in the context of ISO14001:2015 standard? i) Competence ii) Emergency preparedness and response Communication 111) a. i), ii) b. C. ii), iii) d. i), ii), iii) 11.00 of wocte and each has its own requiremen
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A filter with a positive phase shift is non-causal, i.e. it looks into the future. This is not possible. What is really happening?
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Environment conventions are International agreements that aim to reduce the impact of human activities on the environment. Group meetings that are periodically organized to showcase advances in environmental studies The terminology used in the environmental protection field Set of rules and regulations that govern activities that may have an impact on the encronment. & Moving to another question will save this response. Moving to another question will save this response. Question 5 Solar energy hits the transparent windows of a greenhouse as Medial wave energy Longwave energy Short wave energy Extreme wave energy A Moving to another question will save this response.
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Identify and Formulate the technical problem using principles of engineering/mathematics/science Formulate an optimized approach to choosing a diode that meets the requirements. Create a functional block diagram that displays relevant factors to be considered, such as material and device parameters, stability at high temperatures, costs, etc. Solve the technical problem Develop a relevant database of material parameters and device characteristics, and perform needed computations. Show quantitatively your choice of the chosen material for the proposed diode.
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The wafer cost $2000 and hold 400 gross die with a yield of 70% (packaging yield is 100%). If packaging and test costs are negligible, how much do you need to charge per chip to have a 60% profit margin? How many chips do you need to sell to obtain a five-fold return on your $16M investment?
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Your supervisor asked you to provide a general overview of all energy resources and more specifically renewable resources. The report will be part of a documentary that will be produced by a TV company for providing information about energy resources. You are guided in preparing your report by the data given in this section and the corresponding questions. Use these questions to structure your report. 1. For the energy resource that you have been allocated, carry out the following: a. Describe this resource and how it is extracted/obtained. b. Explain the effect this resource has on the environment. c. Explain the advantages and disadvantages of the resource. d. How is the resource converted to electrical energy using Sankey diagrams? 2. Based on published data, compare the costs of installed capacity of each kW and the levelized cost of electricity (LCOE) of a unit of electrical energy for every kWh from the following sources. Also discuss the advantages and disadvantage of each resource. a) Coal fired thermal plant. b) Natural gas. c) Hydro power. d) Onshore wind energy. e) Offshore wind energy. f) Geothermal energy. g) Photovoltaic solar systems. h) Concentrated solar power. 3. How is the global demand for energy worldwide expected to grow over the next 20 years? 4. How is the electrical demand in Jordan expected to grow over the next 20 years? Specify the peak power demand and the total annual energy. What percentage contribution of this demand will renewable energy resources provide? 5. Is the cost of renewable energy increasing, decreasing, or remaining constant? How does it vary for different sources of renewable energy? Explain your answer. 6. What are the renewable sources that are suitable to be used in Jordan, and why? 7. Investigate the cyclic nature and variability in demand daily and yearly? 8. Investigate the energy resources that are cyclic/variable/unpredictable nature? 9. Can renewable energy sources meet this variation in daily and yearly demand? Explain
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5. Why should management review be carried out in the context of Environmental Management System?
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You have just been hired as a summer intern by a startup company, BestSCUEngineers.com Your first project is to re-design a 4-variable logic function. Your boss gives you the 4-variable function in the Product of Sums (POS) format as follows: F(W,X,Y,Z) = (W+X)(W+Y+Z)(W+X'+Y'+Z') Your job is to implement the logic function using logic gates as a 2-level AND- OR using the Minimum Sum of Product (SOP) form. (i) Express F(W,X,Y,Z) as a minimum SOP form [20pts.] (ii) Draw a 2-level AND-OR logic implementation of the SOP form
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Consider the following scenario. You are a solid state device expert working for ACME International Microelectronics Establishment (AIME). A customer approaches you to seek your advice on a low cost circuit that provides for a reasonable' rectification of an AC signal. From your experience, you know that she probably needs a half wave rectifier (low cost) that operates under the following conflicting criteria: (i) a diode with capacitance in a given range, (ii) a low forward resistance to keep power consumption by the diode to a minimum, (i) an output voltage less than the peak input value. (iv) a reverse bias not exceeding the breakdown voltage and (v) an 50 Hz - 60 Hz input frequency. You are expected to investigate a potential diode that meets these requirements. Your task is to explore the optimum characteristics of such a diode
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Which of the following is a requirement for the cost-effectiveness of an ice-storage system being retrofitted to an existing building that currently uses a chilled water system? Select one: O a. Cheap off-peak power rates O b. A tariff with a significant power factor penalty component c. The ability for the ice-storage system to make enough ice to meet the full cooling load during the next day O d. All of the above Why is the volume of water in chilled water storage systems generally much larger than the volume of water used in ice storage systems? Select one: O a. The energy stored in freezing a kilogram of water is much greater than the energy stored in cooling a kilogram of water by 10 degrees centrigrade O b. The energy stored in freezing a kilogram of water is much smaller than the energy stored in cooling a kilogram of water by 10 degrees centrigrade O C. Chilled water systems are much less efficient than ice storage systems O d. Water tanks are very much cheaper than ice storage tanks What is the purpose of the condenser in a chiller unit? Select one: O a. To remove heat from the chilled water supply b. To remove heat from the refrigerant in the chiller O c. To drop the pressure in the refrigerant circuit O d. To increase the pressure in the refrigerant circuit
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the more expensive and complicated conversion method achieves a faster conversion speed. True False
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Propose tidal range power plant which can double its output. Initially, principle operation of tidal range power should be elaborated first followed by its application.
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In which areas do opportunities exist to integrate climate change mitigation and sustainable development goals in your country's development planning? Give specific examples. [3 Marks] b. (i) Using one example in each case, discuss the difference between voluntary agreements and regulatory measures for reducing greenhouse gas emissions. (ii) List the 5 primary sectors of greenhouse gas emissions, in the order of highest to least emitters, according to the IPCC. [4 Marks] c. Explain energy poverty, and discuss three ways of addressing energy poverty in your country.
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You are an Associate Professional working in the Faculty of Engineering and a newly appointed technician in the Mechanical Workshop asks you to help him with a task he was given. The department recently purchased a new 3-phase lathe, and he is required to wire the power supply. The nameplate of the motor on the lathe indicated that it is delta connected with an equivalent impedance of (5+j15) 2 per phase. The workshop has a balanced star connected supply and you measured the voltage in phase A to be 230 0 V. (a) Discuss three (3) advantage of using a three phase supply as opposed to a single phase supply (6 marks) (b) Draw a diagram showing a star-connected source supplying a delta-connected load. Show clearly labelled phase voltages, line voltages, phase currents and line currents. (6 marks) (c) If this balanced, star-connected source is connected to the delta-connected load, calculate: i) The phase voltages of the load (4 marks) ii) The phase currents in the load (4 marks) iii) The line currents (3 marks) iv) The total apparent power supplied
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Which International(ISO) Standard does Battery Management Systemfollow?Explain at least three. It must be typed and need an authenticanswer
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Shares of Apple (AAPL) for the last five years are collected. Returns for Apple's stock were 37.7% for 2014, -4.6% for 2015, 10% for 2016, 46.1% for 2017 and -6.8% for 2018. The variance is how much for this data? (a) 690.1 (b) 890.1 (c) 750.5 (d) 472.04 Ans. (4) Shares of Apple (AAPL) for the last five years are collected. Returns for Apple's stock were 37.7% for 2014, -4.6% for 2015, 10% for 2016, 46.1% for 2017 and -6.8 % for 2018. The standard deviation is how much for this data? (a) 21.73% (b) 59.5% (c) 75.5% (d) 41.8%
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Why electricity today is much more expensive compared to past years in the Philippines. Can you tell me all the factors that affect the prices?
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Implementation of project management technique leading to cost reduction, time reduction, resources ........ allocation and cost control O increased quality O decreased cost decreased quality O When should the machine replaced due to the maintenance cost and resale ? cost at maximum annual cost of the item at minimum annual cost of the item > is a ratio between the............. output volume and the volume of .inputs operating profit Engineering economics Sale values Productivity O If interest i compound m times per period n Where m = 52 if ......... compound monthly compound quarterly compound semiannually compound weekly O Project Management is the use of knowledge, skills, tools, and techniques to plan and implement activities to meet or exceed ....... needs and .expectations from a project manager O people O stakeholder O
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The amount of time by which an activity can be delayed without affecting project completion time is Independent float Free float Activity float Total float Which of the following is the cost for the purpose of Economic order quantity (EOQ)? The annual ordering costs None The annual holding cost per item per annum Both a and b
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Since 1990, industrialized countries have undertaken regulatory reform programs to liberalize their energy markets, often disaggregating and then privatizing previously state-owned utilities. Yet the volume of regulations applying to energy services has increased, as well as the number of independent regulators created to oversee them. Argue a case in support of or against these changes.
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Suppose you are an owner of a car manufacturing company. You need to install SCADA system in your manufacturing company. Explain the steps involved, advantages and challenges to be faced during this process.
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Give examples of the following two project categories: i). Immediate, Near and Long-Term ROI Projects ii). Low, Medium, High as well as No-Margin and Loss-Making Projects 0.3 How can u
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Environmental Protection Agency (EPA) Consumer Protection and Safety Commission (CPSC) Occupational Health and Safety Administration (OSHA) Include an engineering case study of an action taken by that agency. Include a description of the case and how the issue was resolved.
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