"There are three machines in the mechancical engineering lab A. B. and Cand need to be evaluated economically. Machine A has a first cost of $4500, an annual operating cost (AOC) of $900, a salvage value of $200, and a service life 4 years. Machine B has a first cost of $3500, an annual operating cost (AOC) of $700, a salvage value of $350 and a service life 4 years. Machine C has a first cost of $6000, an annual operating cost (AOC) of $50, a salvage value of $100, and a service life 8 years. What is the present worth for machine C? The MARR is 10% per year" -$6,250 -$6.222 -$7,002 -$6.300 O o o O

"There are three machines in the mechancical engineering lab A. B. and Cand need to be evaluated economically. Machine A has a first cost of $4500, an annual operating cost (AOC) of $900, a salvage value of $200, and a service life 4 years. Machine B has a first cost of $3500, an annual operating cost (AOC) of $700, a salvage value of $350 and a service life 4 years. Machine C has a first cost of $6000, an annual operating cost (AOC) of $50, a salvage value of $100, and a service life 8 years. What is the present worth for machine C? The MARR is 10% per year" -$6,250 -$6.222 -$7,002 -$6.300 O o o O

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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For the cash flows shown, use an annual worth comparison and an interest rate of 12% per year. a) Determine the alternative that is economically best. b) Determine the first cost required for each of the two alternatives not selected in part a) so that all 3 alternatives are equally acceptable.
A man was offered a bank certificate with a face value of P100,000 which is baring interest of 8% per year payable semi-annually and due in 6 years. If he wants to earn 6% semi-annually, how much must he pay the certificate? This is engineering economics.
Ee 353.
Economic Study Method
Determine the ESL, at i = 15% per year for equipment that has a first cost of $8,000 and the estimated operating costs and year-end salvage values shown below Year Operation Cost Salvage Value $ per Year $ 1 -1000 2 -1200 3 -1300 4 -2100 1 year 2 years 3 years 4 years 6000 5000 3000 2000
A remotely located air sampling station can be powered by solar cells or by running an electric line to the site and using conventional power. Solar cells will cost $7000 to install and will have a useful life of 4 years with no salvage value. Annual costs for inspection, cleaning, etc. are expected to be $1600. A new power line will cost $14000 to install, with power costs expected to be $1300 per year. Since the air sampling project will end in 4 years, the salvage value of the line is considered to be zero. At an interest rate of 8.00% per year, which alternative should be selected on the basis of a future worth analysis? (Include a minus sign if necessary.) The future worth of solar cells is $[ and that of electric line is $ (Click to select) :) should be selected on the basis of a future worth analysis.
There are three machines in the mechancical engineering lab A, B, and C and need to be evaluated economically. Machine A has a first cost of $4500, an annual operating cost (AOC) of" $900, a salvage value of $200, and a service life 4 years. Machine B has a first cost of $3500, an annual operating cost (AOC) of $700, a salvage value of $350 and a service life 4 years. Machine C has a first cost of $6000, an annual operating cost (AOC) of $50, a salvage value of $100, and a service life 8 years. What is the present worth for machine C? The MARR is 10% "per year $7,002- $6,300- $6.222- $6,250- O o o o
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. System First cost, $ Centrifuge -250,000 -31,000 Belt Press -170,000 -35,000 -26,000 10,000 4 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 (Click to select) ✓ system. 40,000 6 and the annual worth of the belt press system is $-
The Briggs and Stratton Commercial Division designs and manufacturers small engines for golf turf maintenance equipment. A robotics-based testing system with support equipment will ensure that their new signature guarantee program entitled "Always Insta-Start" does indeed work for every engine produced. Pull System Push System First cost of equipment $-1,300,000 $-2,400,000 AOC per Year $-720,000 $-520,000 Salvage Value $110,000 $100,000 Estimated Life 8 years 8 years Compare the annual worth of the two systems at MARR = 14% per year. Select the better system. The (Click to select) pull system push system is determined to be the better system.
You have two machines under consideration for an improved automated wrapping process for Snickers Fun Size candy bars as detailed below. Using an AW analysis, determine which should be selected at i = 15% per year. Machine First cost, $ Annual cost, $/year Salvage value, $ Life, years C -40,000 -10,000 12,000 3 D -65,000 -12,000 25,000