4- A firm is considering three mutually exclusive alternatives as part of aproduction improvement program. The alternatives are:B (i=10%)C (i=15%)AlternativeA (i=12%)200,000Installation Cost (U)270,00040,500190,000Uniform Annual30,75030,250Benefit (U)Useful life in years121415Which of the above should be chosen?

4- A firm is considering three mutually exclusive alternatives as part of a production improvement program. The alternatives are: Alternative A (i=12%) 200,000 B (i=10%) C (i=15%) Installation Cost (U) 270,000 40,500 190,000 30,250 Uniform Annual 30,750 Benefit (U) Useful life in years 12 14 15 Which of the above should be chosen?

4- A firm is considering three mutually exclusive alternatives as part of a production improvement program. The alternatives are: Alternative A (i=12%) 200,000 B (i=10%) C (i=15%) Installation Cost (U) 270,000 40,500 190,000 30,250 Uniform Annual 30,750 Benefit (U) Useful life in years 12 14 15 Which of the above should be chosen?

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter14: Material Selection

Section: Chapter Questions

Problem 1ETSQ

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Machine A has a price of $60,000, annual operating cost of $24,000, and life of 5 years. Machine B has a price of $120,000, annual operating cost of $12,000, and life of 10 years. At MARR=10% per year, use EAC and PW to choose the better machine. (a) Using EAC, which machine would you choose? (b) Using PW, which machine would you choose?
12. An engineer must choose between two technically equivalent alternatives, A and B. Based upon the data in the table below and an interest rate of 9%, which alternative should be selected? A B $3,000 $6,000 $500 First Cost Annual Maintenance $300 End of Useful Life Salvage Value $700 $1,000 15 Useful Life years years a. Choose A; we want to maximize the costs O b. Choose B; we want to minimize the costs O c. Choose A; we want to minimize the costs O d. Choose B; we want to maximize the costs O e. I don't wanna choose O other:
CUMULATIVE AMOUNT CUMULATIVE PERCENT RETAINED, (c)=(b)*100/TOT AL SIEV PERCENT AMOUNT RETAINED, g (a) RETAINED, g (b) PASSING SIZ E 1% (d)=100 - (c) 215 1 885 3/4 980 1/2 2350 3/8 1190 2205 1985 10 1840 40 1650 100 980 200 660 PAN 60 15000 TOTAL [7]
2. Machine A has a price of $60,000, annual operating cost of $24,000, and life of 5 years. Machine B has a price of $120,000, annual operating cost of $12,000, and life of 10 years. At MARR=10% per year, use EAC and PW to choose the better machine. (a) Using EAC, which machine would you choose?
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A firm is trying to decide which of two weighing scales it should install to check a package-filling operation in the plant. The ideal scale would allow better control of the filling operation, hence less overfilling. If both scales have lives equal to the 6-year analysis period, which one should be selected? Assume an 8% interest rate.
Imagine you are a packaging engineer testing the properties of the paperboard from a new supplier. You initially ordered a Caliper 15 paperboard of 10 pieces to test the properties. A) How high is a stack of 10 pieces in inches? (just show in your solutions that you will upload) ..... After doing tests, you decided that the paperboard is acceptable. You proceeded with an order of 2,657 pieces. B) How high is the entire stack in cm? (show in your solutions and type it on the blank below)
A large textile company is trying to decide which sludge dewatering process it should use ahead of its sludge drying operation. The costs associated with centrifuge and belt press systems are shown. Compare them on the basis of their annual worths using an interest rate of 10% per year. Centrifuge -250,000 -31,000 System First cost, $ AOC. $/year Overhaul in year 2. $ Salvage value, $ Life, years The annual worth of the centrifuge system is $- The system selected on the basis of the annual worth analysis is the centrifuge Belt Press -170,000 -35,000 -26,000 10,000 4 40,000 6 83,177, and the annual worth of the belt press system is $- system Prev 5 of 15 ::: Nevt S
Consider the material Al-$456 It has the following physical plopertes Oyield=230mPa 5=-726PA (modulos elesticity). G- 28GPA (mad ulus Cigidity) Oultimate=315mPA Tuield=130 mPa Toltimate=185 mPA A) Calculate Poisson's ratio 3-0 block of Al-5456 wwith the BIf we have a following dimensions And Ferces =80ON Ex = X= Bcm Fy= 1000N y=4cm =1400N c) Is our block safe? (conside only plane stess) D)set up the 3 eqetions to find the strains (EEg t2) in each direction ESolve the3equations to find the Enal dimensions OF our blocK