Challenging Engineering Problems with Detailed Answers

Which of the following statements are right and which are wrong? 1. The value of a stock variable can only be changed, during a simulation, by its flow variables. R-W 2. An inflow cannot be negative. R - W 3. The behavior of a stock is described by a differential equation. R - W 4. If A+B, both variables A and B were increasing until time t, and variable A starts to decrease at time t, then variable B may either start to decrease or keep on increasing but at a reduced rate of increase. R - W 5. If a potentially important variable is not reliably quantifiable, it should be omitted from a SD model. R - W 6. SD models are continuous models: a model with discrete functions cannot be called a SD model since it is not continuous. R - W 7. It is possible that the same real-world system element-for various levels of aggregation and time horizons of interest-is modeled as a constant, a stock, a flow, or an auxiliary. R-W 8. One should also test the sensitivity of SD models to changes in equations of soft variables, table functions, structures and boundaries. R - W 9. SD validation is really all about checking whether SD models provide the right output behaviors for the right reasons. R - W 10. If a SD model produces an output which almost exactly fits the historical data of the last50 years, , it is certainly safe to use that model to predict the outputs 20 years from today. R-W
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1. The class Shapes includes two void methods: calcTriangleArea()and calcTrianglePerimeter(). The calcTriangleArea()method takes two int parameters (base and height), calculates thearea of a triangle, and assigns the value to a private instance variable (area). ThecalcTrianglePerimeter()method takes three int parameters (lengthSide1, lengthSide2, andlengthSide3), calculates the perimeter of a triangle, and assigns the value to a private instancevariable (perimeter). The Shapes class also includes two getter methods, which return thecalculated values. The Shapes class implements the Calculatable interface.Write the Shapes class and the Calculatable interface.2. Write an abstract method convertMinutes() that takes minutes as an int parameter and returns a double value.3. Write an abstract method convertInches() that takes inches as an int parameter and returns a double value.Thank you!
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1. The nominal interest rate is 12%. Try to calculate the interest once a month. What is the effective interest rate?
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List the four possible ways of connecting a bank of three transformers for three-phase service.
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Give snapshots of memory after each pass of the odd-even sort,for the list {3, 9, 8, 1, 2, 5, 7, 6, 4}. In your snapshotsindicate which processors are comparing/swapping whichelements.
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The term used to describe an efficient flow of information between a manufacturing operation and its suppliers is: Select one: O a real-time processing O b. e-manufacturing Oc data exchange Od transactional processing O e cross vendor integration Part B: An ASK signal with a carrier frequency of 50kHz is shown below: Time Domain ASK Output 10 Amplitude -10- 0.0005 0.001 0.0015 Time (Seconds) 0.002 Its bandwidth is: Select one: O a. 52000 Hz O b. 51000 Hz Oc 1000 Hz O d. 4000 Hz e. 2000 Hz
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I need to write a report about line follower robot with Arduino. I need to answer the following questions. Can you help me?1)Technique and procedure of the project2)Product Specifications3)Customer Needs4)Aims and scope of project
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Identify 10 top level functions for this software system and draw a FFBD for this system using the identified functions. (15)
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Consider the system described by:y(k) 1,4 y(k-1) +0.72y(k 2) - 0, 176 y(k-3) +0,0192 y(k - 4) = x(k)where x(k) is the input and y(k) is the output of the system. Using Jury's stability criteria, determine the system stability.
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An engineer working in a well reputed engineering firm was responsible for the designing and estimation of a bridge to be constructed. Due to some design inadequacies the bridge failed while in construction. Evaluate with reference to this case whether there will be a legal entitlement (cite relevant article of tort case that can be levied against the engineer incharge in this case)
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Create an application which will allow the user to type some text into a text box, and constantly display the number of words and the number of alphabetic letters that has been typed so far.By using HTML (the source code and the result of the program are recommended)
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The transition time of a diode is 3.6 times the storage time, if the reverse recovery time is 13 nS, what is the storage time in nS?a.2,32142857b.Nonec.1,96969697d.2,82608696
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An NMOS anor for which mV 2 and VI-035 Vis operated with VOS VOS06V To wat value can VDS be reduced while maintaining the current unchanged Expres your answer in V
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When you measure flow, in order to control level, this can be regarded as Select one:Feedback controlFeed forward controlOn/off controlRatio Controlb) and c)(A) and (C) are wrong answers, and please give a reason for the answer PLEASE!!!
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On August 31 of this year, MFSB General Partnerships balance sheet is:AdjustedBasis FMVCash 540,000 540,000Receivables -0- 200,000Inventory 452,000 460,000Capital assets 908,000 1,300,000Total 1,900,000 2,500,000Mother, capital 475,000 625,000Father, capital 475,000 625,000Sister, capital 475,000 625000Brother, capital 475,000 625,000Total 1,900,000 2,500,000On that date, Mother sells her one-quarter partnership interest to Auntie for $750,000. Mothers outside basis is $575,000. How much capital gain and/or ordinary income will Mother recognize on the sale?
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An electronic device exhibits a bathtub hazard rate profile. Assuming the hazard rate function is given as follows, where t is units of months:[0.1-0.004t, 0t
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50.Which of the following shortcomings may be revealed during an IT security audit?a. whether the users are satisfied with IT services or notb. whether the firewall is tall enoughc. whether only the appropriate personnel have access to critical datad. whether the IT budget is adequate or not96What integrated set of functions defines the processes by which data is obtained, certified fit for use, stored, secured, and processed in such a way as to ensure that the accessibility, reliability, and timeliness of the data meet the needs of the data users within an organization?a. data governanceb. data managementc. data dictionaryd. relational database model98After Lindy's team improves their department's data management by implementing rigorous data management processes, _____.a. the quality of their data improves as wellb. key business decisions must be delayedc. measures to protect security are no longer requiredd. they realize that they still lack data governance109Organizations use processes, procedures, and differentiation strategies to introduce new systems into the workplace in a manner that lowers stress, encourages teamwork, and increases the probability of a successful implementation.a. Trueb. False
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Problem Statement A newly formed pharma company has decided to launch its new product, for which the consultancy firm has suggested to launch its vitamin capsules. Pharma company is looking for bids for designing a capsule packaging plant along with a display unit having a display to show the vitamin type which is being packed (ignore B12) along with another display to display quantity of the capsules upto 99 where number of capsules can be given as an input which may vary from 01 to 99. Hint: Use Counters, Registers, Encoders/Decoders, MUX/DEMUX, Comparators, Adders, Seven Segment Displays wherever required. Use Minimization techniques to design an efficient and cost-effective solution. Deliverables: 1. Gate Level Design of Capsule Packaging Plant 2. Gate Level Design of Display Unit to Display Vitamin Type
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Define stability concept of a linear System by giving an example b) Define i) zero input stability. ii) Asympotatic stability iii) Marginal stability. C) for the following characteristic equation. F (S) = 56 +5 +55 +45 +4 1) Find the location of roots in complex splane ii) Determine the stability of the system.
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LCCA deals with both revenues and costs associated with a project's day to day engineering, management and decision-making process. (2pts) True False LCCA addresses the total cost of the system associated with operation and support functions. (2pts) True False LCCA includes all future costs associated with research, design and development, construction and/or production, system utilization, maintenance and support and system retirement, material recycling and disposal activities. (2pts) True False
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EXAMPLES OF PACKAGING BY CONVEYOR Design the Ladder Diagram for an Industrial Application that packages canned vegetables supplied by a conveyor. When 12 cans are detected by a current sourcing proximity sensor, a packaging operation is initiated. The production Line must package 200 boxes of 12 cans pershift. When 200 packages have been completed, a red light is illuminated. While the system is packaging cans, a green light is illuminated. A total count of cans packaged per shift shuld also be recorded. Maximum amount of cans on the conveyor per shift is 3000. -A label-checking sensor verifies that all cans have labels attached. All cans without labels are ejected before packaging station. The number of ejected cans is counted and the total number of cans currently on the conveyor is determined. The number of ejected cans and the total number of cans on the conveyor are transferred to integer registers as needed. Design Ladder diagrams fort his Control System.
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Your companys internal studies show that a single-core system is sufficient for the demand on your processing power; however, you are exploring whether you could save power by using two cores. a. Assume your application is 80% parallelizable. By how much could you decrease the frequency and get the same performance? b. Assume that the voltage may be decreased linearly with the frequency. How much dynamic power would the dualcore system require as compared to the single-core system? c. Now assume that the voltage may not be decreased below 25% of the original voltage. This voltage is referred to as the voltage floor, and any voltage lower than that will lose the state. What percent of parallelization gives you a voltage at the voltage floor? d. How much dynamic power would the dual-core system require as compared to the single-core system when taking into account the voltage floor?Your company's internal studies show that a single-core system is sufficient for the demand on your processing power; however, you are exploring whether you could save power by using two cores. a. Assume your application is 80% parallelizable. By how much could you decrease the frequency and get the same performance? b. Assume that the voltage may be decreased linearly with the frequency. How much dynamic power would the dual- core system require as compared to the single-core system? c. Now assume that the voltage may not be decreased below 25% of the original voltage. This voltage is referred to as the voltage floor, and any voltage lower than that will lose the state. What percent of parallelization gives you a voltage at the voltage floor? d. How much dynamic power would the dual-core system require as compared to the single-core system when taking into account the voltage floor?
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BER Performance in AWGN (BPSK and QPSK) Create an AWGN channel object. Uses it to process a BPSK and QPSK signal. Compare the BER of the system for different values of SNR. Plot power spectral density for each one.
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exclusive summary for Amplifier Feedback.in typing thanks
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