EBK CONTEMPORARY ENGINEERING ECONOMICS
6th Edition
ISBN: 9780134123950
Author: Park
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Chapter 7, Problem 55P
To determine
Selection of alternate.
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Two 150-horsepower (HP) motors are being considered for installation at amunicipal sewage treatment plant. The first costs $4,500 and has an operating efficiency of 83%. The second costs $3,600 and has an operating efficiency of 80%. Both motors are projected to have zero salvage value after a life of 10 years. All the annual charges, such as insurance and maintenance, amount to a total of 15% of the original cost of each motor. If power cost is a flat 5 cents per kilowatt-hour, which alternative should be chosen at 5,000 operating hours per year? Assume an interest rate of 6%. (A conversion factor you might find useful is IHP = 746watts = .746kilowatts.)
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Chapter 7 Solutions
EBK CONTEMPORARY ENGINEERING ECONOMICS
Ch. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
Ch. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 14PCh. 7 - Consider an investment project with the cash flows...Ch. 7 - Consider the investment projects given in Table...Ch. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Consider the investment projects given in Table...Ch. 7 - Consider the investment projects given in Table...Ch. 7 - Prob. 21PCh. 7 - Prob. 22PCh. 7 - Consider the investment projects given in Table...Ch. 7 - Prob. 24PCh. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - Prob. 28PCh. 7 - Prob. 29PCh. 7 - Prob. 30PCh. 7 - Prob. 31PCh. 7 - Prob. 32PCh. 7 - Prob. 33PCh. 7 - Prob. 34PCh. 7 - Prob. 35PCh. 7 - Prob. 36PCh. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Prob. 39PCh. 7 - Prob. 40PCh. 7 - Prob. 41PCh. 7 - Prob. 42PCh. 7 - Consider the two mutually exclusive investment...Ch. 7 - You are considering two types of automobiles....Ch. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - Fulton National Hospital is reviewing ways of...Ch. 7 - Prob. 48PCh. 7 - Consider the investment projects given in Table...Ch. 7 - Prob. 50PCh. 7 - Prob. 51PCh. 7 - Prob. 52PCh. 7 - Prob. 53PCh. 7 - Prob. 54PCh. 7 - Prob. 55PCh. 7 - Prob. 56PCh. 7 - Prob. 57PCh. 7 - Prob. 1STCh. 7 - Prob. 2STCh. 7 - Prob. 3STCh. 7 - Prob. 4STCh. 7 - Prob. 5ST
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