Engineering Economy
16th Edition
ISBN: 9780133582819
Author: Sullivan
Publisher: DGTL BNCOM
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Chapter 6, Problem 35P
To determine
Calculate the annual worth.
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Decision D6, which has three possible choices (X, Y, or Z), must be made in year 3 of a 6-year study period in order to maximize EPW).
Using an MARR of 16% per year, the investment required in year 3, and the estimated cash flows for years 4 through 6,
determine which decision should be made in year 3.
High
Low
High
Y
D6
Low
High
Low
Investment, Cash Flow, (Year Cash Flow, $1000
3)
Cash Flow, $1000
(Year 6)
Cash Flow,
Outcome
Year 3
(Year 4)
$1000 (Year 5)
Probability
3
High (X)
$-190,000
$50
$50
$50
0.58
$40
Low (X)
High (Y)
Low (Y)
High (Z)
Low (Z)
$30
$40
$30
$170
$-30
$20
$50
$30
$150
$-30
0.42
$-54,000
$30
$30
$190
$-30
0.45
0.55
$-240,000
0.7
0.3
The present worth of X is $ [
The present worth of Y is $
The present worth of Z is $
Select decision branch Y
As supervisor of a facilities engineering department, you consider mobile cranes to be critical equipment. The purchase of a new, medium-sized truck-mounted crane is being evaluated. The economic estimates for the two best alternatives are shown in the following table. MARR is at 15% per year. You can use the assumption of repeatability in this case.
Show that the same selection is made for the following methods:a. RORAI method
b. AWC method
c. PW method
TRUE OR FALSE:
If there is a past estimation error, there is a need to replace the property immediately.
The physical life is always greater than all the other “life” factors under replacement analysis.
If breakeven analysis is conducted with PW analysis for different MEAs, it doesn’t guarantee that the fastestalternative to reach its breakeven point has also the highest equivalent worth.
Chapter 6 Solutions
Engineering Economy
Ch. 6 - Prob. 1PCh. 6 - The Consolidated Oil Company must install...Ch. 6 - Prob. 3PCh. 6 - Three mutually exclusive design alternatives are...Ch. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Fiesta Foundry is considering a new furnace that...Ch. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Consider the following cash flows for two mutually...
Ch. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - The alternatives for an engineering project to...Ch. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Refer to the situation in Problem 6-16. Most...Ch. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - In the Rawhide Company (a leather products...Ch. 6 - Refer to Problem 6-2. Solve this problem using the...Ch. 6 - Prob. 28PCh. 6 - Prob. 29PCh. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - Prob. 32PCh. 6 - Prob. 33PCh. 6 - Potable water is in short supply in many...Ch. 6 - Prob. 35PCh. 6 - Prob. 36PCh. 6 - In the design of a special-use structure, two...Ch. 6 - Prob. 38PCh. 6 - a. Compare the probable part cost from Machine A...Ch. 6 - Prob. 40PCh. 6 - Two mutually exclusive alternatives are being...Ch. 6 - Prob. 42PCh. 6 - IBM is considering an environmentally conscious...Ch. 6 - Three mutually exclusive earth-moving pieces of...Ch. 6 - A piece of production equipment is to be replaced...Ch. 6 - Prob. 46PCh. 6 - Prob. 47PCh. 6 - Prob. 48PCh. 6 - Prob. 49PCh. 6 - Prob. 50PCh. 6 - Prob. 51PCh. 6 - Prob. 52PCh. 6 - Prob. 53PCh. 6 - Prob. 54PCh. 6 - Prob. 55PCh. 6 - Prob. 56PCh. 6 - Prob. 57PCh. 6 - Prob. 58PCh. 6 - Prob. 59PCh. 6 - Prob. 60PCh. 6 - Prob. 61PCh. 6 - Prob. 62PCh. 6 - Prob. 63PCh. 6 - Prob. 64PCh. 6 - Prob. 65PCh. 6 - Prob. 66PCh. 6 - Three models of baseball bats will be manufactured...Ch. 6 - Refer to Example 6-3. Re-evaluate the recommended...Ch. 6 - Prob. 69SECh. 6 - Prob. 70SECh. 6 - Prob. 71SECh. 6 - Prob. 72CSCh. 6 - Prob. 73CSCh. 6 - Prob. 74CSCh. 6 - Prob. 75FECh. 6 - Prob. 76FECh. 6 - Prob. 77FECh. 6 - Complete the following analysis of cost...Ch. 6 - Prob. 79FECh. 6 - For the following table, assume a MARR of 10% per...Ch. 6 - Prob. 81FECh. 6 - Problems 6-82 through 6-85. (6.4) Table P6-82 Data...Ch. 6 - Prob. 83FECh. 6 - Problems 6-82 through 6-85. (6.4) Table P6-82 Data...Ch. 6 - Problems 6-82 through 6-85. (6.4) Table P6-82 Data...Ch. 6 - Consider the mutually exclusive alternatives given...Ch. 6 - Prob. 87FE
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