EBK THINKING LIKE AN ENGINEER
4th Edition
ISBN: 8220103633512
Author: OHLAND
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 24RQ
When a wine generator is installed there is a substantial initial cost, but daily operation requires no further cash payment. However, to keep the generator in proper operating condition, it must undergo maintenance once a year. Each maintenance cycle requires a cash payment of $5000. The solid lines on the following graph show this situation. The stepped blue line shows the cost over time and the straight brown line shows the revenue derived from the generator.
As the second yearly maintenance approaches, you are informed by the manufacturer that a significant upgrade is available for additional cost. The upgrade will make the generator far more efficient, thus the revenue would increase substantially. The yearly maintenance cost after the upgrade would still be $5000. The dashed lines show the cost and revenue projections if the upgrade s installed.
- a. What is the amount of revenue per year without the upgrade?
- b. What is the initial cost of the wind generator?
- c. How many years after the initial installation do you break even if the upgrade is installed? List your answer as number of years 1 number of months.
- d. What is the cost of the upgrade completed at the two-year maintenance cycle? Note that this amount includes the standard $5000 maintenance fee.
- e. How many years after the initial installation would the profit be the same whether you upgrade or not? List your answer as number of years + number of months.
- f. How many years after the initial installation will you have made a profit of $25,000 if the upgrade is NOT installed? List your answer as number of years + number of months.
- g. If the upgrade results in increased reliability, thus increasing the maintenance interval to two years, though still at a cost of $5000 per maintenance, how many years after the initial installation v/ill you break even after the upgrade? List your answer as number of years + number of months.
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The gross requirements for item Z are specified for the beginning
of weeks 1 through 8 in the table that follows.
Gross Requirements for Item Z
1 2 3
6 7 8
Week
4
Gross Requirement
180 90 180 0 360 0 90 90
The lead time is 2 weeks. The current on hand inventory, at the beginning of week 1 is 360 units. If the order
cost is $540 per order and the inventory cost is $3 per unit per period, and the order quantity is the computed
part period (or a multiple of the computed part period) when it is necessary to place an order, what is the total
cost for the 8 week period? Report as a whole number with no commas.
Answer:
The correct answer is: 4590
Chapter 11 Solutions
EBK THINKING LIKE AN ENGINEER
Ch. 11.2 - In the following experimental data plot, identify...Ch. 11.2 - In the following experimental data plot, identify...Ch. 11.2 - In the following theoretical data plot, identify...Ch. 11.2 - In the following theoretical data plot, identify...Ch. 11.4 - Use the graph to answer the following questions....Ch. 11.5 - Use the graph to answer the following questions....Ch. 11.6 - We assume that the current through two...Ch. 11.6 - You are working for a tire manufacturer, producing...Ch. 11.6 - You want to install a solar panel system on your...Ch. 11 - Joules first law relates the heat generated to...
Ch. 11 - Data for a wind turbine is shown below. Use the...Ch. 11 - There is a large push in the United States to...Ch. 11 - Your team has designed three tennis ball...Ch. 11 - Plot the following pairs of functions on a single...Ch. 11 - Plot the following pairs of functions on a single...Ch. 11 - You need to create a graph showing the...Ch. 11 - The decay of a radioactive isotope can be modeled...Ch. 11 - In researching alternate energies, you find that...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - The following graph applies to ICA 11-10 to ICA...Ch. 11 - Use the following graph to determine which...Ch. 11 - The following graph shows the power delivered to a...Ch. 11 - The music industry in the United States has had a...Ch. 11 - You are working for a chemical manufacturer,...Ch. 11 - Use the accompanying graph to answer the following...Ch. 11 - A company designs submersible robots with a new...Ch. 11 - Your company is manufacturing a complex part from...Ch. 11 - For questions 1 through 10, your instructor will...Ch. 11 - 2. Due to increased demand, an industrial engineer...Ch. 11 - 3. An engineer is conducting tests of two...Ch. 11 - 4. Several reactions are carried out in a closed...Ch. 11 - 5. The following experimental data are collected...Ch. 11 - 6. If an object is heated, the temperature of the...Ch. 11 - 7. Eutrophication is the result of excessive...Ch. 11 - 8. In the 1950s, a team at Los Alamos National...Ch. 11 - Prob. 9RQCh. 11 - 10. One of the 22 named, derived units in the...Ch. 11 - Shown are graphs of the altitude in meters, and...Ch. 11 - Answer the following questions using the graph....Ch. 11 - Answer the following questions using the graph....Ch. 11 - In a simple electric circuit, the current (I) must...Ch. 11 - In a hard drive design, the faster the disk spins,...Ch. 11 - We have decided to become entrepreneurs by raising...Ch. 11 - As an engineer, suppose you are directed to design...Ch. 11 - We have obtained a contract to construct metal...Ch. 11 - Your company has developed a new high-mileage...Ch. 11 - One of the 14 Grand Challenges for Engineering as...Ch. 11 - You are an engineer for a plastics manufacturing...Ch. 11 - When a wine generator is installed there is a...
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