4) Two installations are being considered to provide for water storage in a chemical plant. A tank on a tower or a tank of equal capacity placed on a hill some distance from the plant. The cost of installing the tank and tower is estimated at P350,000. The cost of installing the tank on the hill, including the extra length of service lines, is estimated at P300,000. The hill installation will equire an additional investment of P30,000 in pumping equipment whose life is estimated to be 15 years with a salvage value of P2,500. The life of the two installations is estimated to be 30 years. Annual cost of labor, electricity, and maintenance incident to the pumping equipment is estimated at P3,000. Taxes and insurance for both are 2.5% of the first cost. Money is worth 18% effective. Which alternative should be used? (USE PW and EUAC);

A site on a major river is being evaluated for a new lock and dam for navigation purposes. Two options are considered: (a) single 1200-foot lock or (b) single 1200-foot lock and a single 600-foot lock (two locks, side by side). Benefits and costs of the two options are indicated in the table. Interest rate to be used is 7%, and the planning period is 50 years. Initial cost Annual operating cost Annual benefit Single Lock ($ million) 60.0 1.0 12.0 Double Locks ($ million) 85.0 1.5 16.0 (a-5 pts) Show the cash flow table for both options. (You may show only for the first three years as the same numbers will repeat for the remaining planning period.) (b-10 pts) Solve by the present worth method. (c-10 pts) Solve by the annual cash flow method. (d-10 pts) Solve by the incremental benefit-cost ratio method. (e-5 pts) Check your solutions for (b), (c), and (d). Are they different? Explain.

A toll bridge across the Mississippi River is being considered as a replacement for the current 1-40 bridge linking Tennessee to Arkansas. Because this bridge, if approved, will become a part of the U.S. Interstate Highway system, the B-C ratio method must be applied in the evaluation. Investment costs of the structure are estimated to be $17,500,000, and $334,000 per year in operating and maintenance costs are anticipated. In addition, the bridge must be resurfaced every fifth year of its 25-year projected life at a cost of $1,200,000 per occurrence (no resurfacing cost in year 25). Revenues generated from the toll are anticipated to be $2,500,000 in its first year of operation, with a projected annual rate of increase of 1.75% per year due to the anticipated annual increase in traffic across the bridge. Assuming zero market (salvage) value for the bridge at the end of 25 years and a MARR of 11% per year, should the toll bridge be constructed? Also, assume that the initial surfacing…

A toll bridge across the Mississippi River is being considered as a replacement for the current 1-40 bridge linking Tennessee to Arkansas. Because this bridge, if approved, will become a part of the U.S. Interstate Highway system, the B-C ratio method must be applied in the evaluation. Investment costs of the structure are estimated to be $19,000,000, and $332,000 per year in operating and maintenance costs are anticipated. In addition, the bridge must be resurfaced every fifth year of its 30-year projected life at a cost of $1,300,000 per occurrence (no resurfacing cost in year 30). Revenues generated from the toll are anticipated to be $2,400,000 in its first year of operation, with a projected annual rate of increase of 2% per year due to the anticipated annual increase in traffic across the bridge. Assuming zero market (salvage) value for the bridge at the end of 30 years and a MARR of 12% per year, should the toll bridge be constructed? Also, assume that the initial surfacing of…