Questions from Engineering

Q: According to Descartes’ rule of signs, determine the possible number of

According to Descartes’ rule of signs, determine the possible number of i* values for the net cash flow series with the following signs: (a) −−−+++−+− (b) −−−−−−+++++ (c) ++++−−−−−−+−+−−− (d) −−++++−...

Q: Self-tightening wedge grips are designed for tensile testing applications up

Self-tightening wedge grips are designed for tensile testing applications up to 1200 pounds. The cash flows associated with the product are available below. Determine the following from these values:...

Q: Four mutually exclusive service alternatives are under consideration for automating a manufacturing

Four mutually exclusive service alternatives are under consideration for automating a manufacturing operation. The alternatives were ranked in order of increasing initial investment and then compared...

Q: For the cash flows shown, determine the incremental cash flow between

For the cash flows shown, determine the incremental cash flow between machines B and A (a) in year 0, (b) in year 3, and (c) in year 6.

Q: For the two alternatives, demonstrate that the sum of the incremental

For the two alternatives, demonstrate that the sum of the incremental cash flow series (Z − X) over the LCM is equal to the difference in the sums of the individual cash flow series...

Q: RKI Instruments manufactures a ventilation controller designed for monitoring and controlling carbon

RKI Instruments manufactures a ventilation controller designed for monitoring and controlling carbon monoxide in parking garages, boiler rooms, tunnels, etc. The net cash flow associated with one plan...

Q: The manager of a canned-food processing plant has two labeling

The manager of a canned-food processing plant has two labeling machine options. On the basis of a rate of return analysis with a MARR of 20% per year, determine (a) which model is economically better,...

Q: Certain parts for NASA’s reusable space exploration vehicle can either be anodized

Certain parts for NASA’s reusable space exploration vehicle can either be anodized (A) or powder coated (P). Some of the costs for each process are shown in the table below. The incr...

Q: Lesco Chemical is considering two processes for making a cationic polymer.

Lesco Chemical is considering two processes for making a cationic polymer. Process A has a first cost of $100,000 and an AOC of $60,000 per year. Process B’s first cost is $165,000. If both process wi...

Q: A consulting engineering firm’s CFO wants to purchase either Ford Explorers or

A consulting engineering firm’s CFO wants to purchase either Ford Explorers or Toyota 4Runners for company principals. The two models under consideration cost $30,900 for the Ford and $36,400 for the...