ENGINEERING ECONOMY
ENGINEERING ECONOMY
8th Edition
ISBN: 9781260606966
Author: Blank
Publisher: MCG
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Chapter 1, Problem 61APQ
To determine

Calculate the interest rate.

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Each year Exxon-Mobil expends large amounts of funds for mechanical safety features throughout its worldwide operations. Carla Ramos, a lead engineer for Mexico and Central American operations, plans expenditures of $1 million now and each of the next 4 years just for the improvement of field-based pressurerelease valves. Construct the cash flow diagram to find the equivalent value of these expenditures at the end of year 4, using a cost of capital estimate for safety-related funds of 12% per year.
A manufacturer of electronic devices invests $650,000 in equipment for making compact piezoelectric accelerometers for general purpose vibration measurement. Estimate the rate of return from revenue of $225,000 per year for 10 years and $70,000 in salvage value from the used equipment sale in year 10. The company uses an MARR of 25%. Solve (a) Manually using interpolation, and (b) using Excel spreadsheet function.
In an effort to retain troops who are proficient with weapons and who can speak the languages of Middle Eastern countries, the Pentagon offered bonuses of $150,000 to specialized personnel who were near or already eligible for retirement. If 400 enlisted personnel accepted the bonus in year one, 300 in year two, and 600 in year three, what was the equivalent annual cost of the program over the 3-year period at an interest rate of 6% per year?
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