Basics Of Engineering Economy
2nd Edition
ISBN: 9780073376356
Author: Leland Blank, Anthony Tarquin
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 4, Problem 71APQ
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Dexcon Technologies, Inc., is evaluating two alternatives to produce its new plastic filament with low friction properties for creating custom bearings for 3-D printers.
The estimates associated with each alternative are shown below. Using a MARR of 16% per year, which alternative has the better present worth and what is that
value (select the closest value)?
Method
First Cost
AOC, per Year
Salvage Value
Life
DDM
$170,000
$65,000
$4,000
2 years
LS
$350,000
$40,000
$29,000
4 years
DDM with a PW--$473,000
LS with a PW --$445,900
LS with a PW --$222,055
DDM with a PW--$109,300
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Veer
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Chapter 4 Solutions
Basics Of Engineering Economy
Ch. 4 - State two conditions under which the do-nothing...Ch. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - The costs associated with manufacturing a...
Ch. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Two mutually exclusive projects have the estimated...Ch. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - The manager of engineering at the 900-megawatt...Ch. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Three different plans were presented to the GAO by...Ch. 4 - The U.S. Army received two proposals for a turnkey...Ch. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52PCh. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - Prob. 56PCh. 4 - Prob. 57PCh. 4 - Prob. 58PCh. 4 - Prob. 59PCh. 4 - Prob. 60PCh. 4 - Prob. 61PCh. 4 - Prob. 62PCh. 4 - Prob. 63APQCh. 4 - Prob. 64APQCh. 4 - Prob. 65APQCh. 4 - Prob. 66APQCh. 4 - Prob. 67APQCh. 4 - Prob. 68APQCh. 4 - Prob. 69APQCh. 4 - Prob. 70APQCh. 4 - Prob. 71APQ
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- A cost-saving device has no salvage value after 5 years. Two options: Device A: Costs $10,000 & saves $3000 annually Device B: Costs $13,500 & saves $3000 the 1st year & increases $500 annually Which alternative should be selected using incremental ROR analysis, MARR=7%?arrow_forwardThe following five alternatives that are evaluated by the rate of return method, If the alternatives are independent and the MARR is 15% per year, the onels) to select is (are) Incremental ROR, N. When Compared with Alternative Initial Investment,S Alternative Alternative A BC DE 10.6 27.3 194 353 25.0 -25,000 -35,000 13.1 38.5 24.4 -40,000 13.4 46.5 27.3 26.8 -60,000 25.4 -75,000 20.2 Only D O Only D and E O Only A D, and E O Only Earrow_forwardWhat is FW of Design A, Design B, and Design C. Which alternative should be chosen. Do not round off in the solution.arrow_forward
- Dexcon Technologies, Inc. is evaluating two alternatives to produce its new plastic filament with tribological (i.e., low friction) properties for creating custom bearings for 3-D printers. The estimates associated with each alternative are shown below. Using a MARR of 20% per year, which alternative has the lower present worth? Method DDM LS First cost, $ −164,000 −370,000 M&O cost, $/year −55,000 −21,000 Salvage value, $ 0 30,000 Life, years 2 4arrow_forwardA company that manufactures brushless blowers invested $700,000 in an automated quality control system for blower housings. The resultant savings was $180,000 per year for 5 years. If the equipment had a salvage value of $100,000, what rate of return per year did the company make and should the company invest in the blower if MARR is 10%? 7.31% per year (invest in the blower) None of the above 7.31% per year (do not invest in the blower) 12.30% per year (invest in the blower) 12.30% per year (do not invest in the blower)arrow_forwardTwo methods can be used for producing expansion anchors. Method A costs $80,000 initially and will have a $15,000 salvage value after 3 years. The operating cost with this method will be $30,000 per year. Method B will have a first cost of $120,000, an operating cost of $8000 per year, and a $40,000 salvage value after its 3-year life. At the MARR of 12% per year, which method should be used on the basis of a present worth analysis?arrow_forward
- For the two alternatives, demonstrate that the sum of the incremental cash flow series (Z − X) over the LCM is equal to the difference in the sums of the individual cash flow series for X and Z. System X Z First cost, $ −40,000 −95,000 AOC, $ per year −12,000 −5,000 Salvage value, $ 6,000 14,000 Life, years 3 6arrow_forwardA process can be completed using either Alternative X or Y, where Y is an automated version of X. Alternative X has fixed costs of $10,000 per year with a variable cost of $50 per unit. If the process is automated, the fixed cost for Y will be $5,000 per year and its variable cost will be only $30 per unit. The minimum number of units that must be produced each year for alternative Y to be favored is closest to:a. Alternative Y will be favored for any level of productionb. 125c. 375d. Alternative X will be favored for any level of productionarrow_forwardABC Beverage, LLC, purchases its 355-ml cans in large bulk from Wald-China Can Corporation. The finish on the anodized aluminum surface is produced by mechanical finishing technologies called brushing or bead blasting. Engineers at Wald are switching to more efficient, faster, and cheaper machines to supply ABC. Use the estimates and MARR = 8% per year to select between the two alternatives. Brush Alternative Bead Blasting Alternative P $-400,000 $-400,000 n 6 years large Salvage Value $50,000 no value AOC Nonlabor $-60,000 in year 1, decreasing by $2500 annually starting in year 2 $-70,000 per yeararrow_forward
- The ore of a gold mine in the mountain province contains, on the average, 0.5 Gram of gold per ton. One method of processing cost P1,650 per ton recovers 93% of the gold, while another method cost only P1,500 per ton and recovers 81% of the gold. If gold can be sold at P8,500 per gram, which method is better and by how much?arrow_forwardWHICH IS MORE ECONOMICAL? USE METHOD OF COMPARISON OF ALTERNATIVES! In a cold storage plant, it is desired to determine whether to use insulation two inches thick or three inches thick in insulating the walls of the cold storage ware house. Heat absorb through the walls without insulation would cost P96.00 per year per squaremeter. A two-inch insulation will cost P30.40 per square meter and will cut out 89% of the loss. A three-inch insulation will cut out 92% of the loss and will cost P65.00 per square meter. Using a life 15 years for the insulation with no salvage value and a minimum attractive return of 8%, what thickness of insulation should be used?arrow_forward8arrow_forward
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