1. Four years ago, an ore-crushing unit was installed at a mine which cost Php81,000. Annual operating costs for this unit is Php3,540. This unit was estimated to have a life of 10 years. The quantity of ore to be handled is to be doubled and is expected to continue at this higher rate for at least 10 years. A unit that will handle the same quantity of ore and have the same operating costs as the one now in service can be installed for Php75,000. This unit will have a useful life of 6 years. A unit with double the capacity of the one now in use can be installed for Php112,000. Its life is estimated at 6 years and its annual operating costs are estimated at Php4,950. The present realizable value of the unit now in use is Php26,000. All units under consideration will have an estimated salvage value at retirement age of 12% of the original cost. Interest rate is 20%. Annual taxes and insurance are 2.5% of the original cost. What would you recommend?

1. Four years ago, an ore-crushing unit was installed at a mine which cost Php81,000. Annual operating costs for this unit is Php3,540. This unit was estimated to have a life of 10 years. The quantity of ore to be handled is to be doubled and is expected to continue at this higher rate for at least 10 years. A unit that will handle the same quantity of ore and have the same operating costs as the one now in service can be installed for Php75,000. This unit will have a useful life of 6 years. A unit with double the capacity of the one now in use can be installed for Php112,000. Its life is estimated at 6 years and its annual operating costs are estimated at Php4,950. The present realizable value of the unit now in use is Php26,000. All units under consideration will have an estimated salvage value at retirement age of 12% of the original cost. Interest rate is 20%. Annual taxes and insurance are 2.5% of the original cost. What would you recommend?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Calculate the capitalized cost of a project that has an initial cost of P 3,000,000 and an additional cost of P 1,000, 000 at the end of every 10 yrs. The annual operating costs will be P100, 000 at the end of every year for the first 4 years and P160, 000 thereafter. In addition, there is expected to be recurring major rework cost of P 300,000 every 13 yrs. Assume i =15%. Calculate it manually, not in excel. Show complete solution and formula used. Please write it in a paper in order for us to understand. Don't type it. Thank you! ANS. P 4,281,935.95
Do quickly
Power is supplied at the rate of 0.40 hp for 2 min in drilling a hole in a 1.0 lb brass block. (a) How much heat is generated? (b) What is the rise in temperature of the brass if 75% of the heat generated warms the brass? What happens to the other 25%? (don't change the hp, lb)
Manufacturing Processes Q1. Chose the correct answer: 1. Which of the following are variations of sheet-metal-bending operations: (a) coining, (b) flanging, (c) hemming, (d) ironing, (e) notching, (f) shear spinning, (g) trimming, and (h) tube bending? 2. Springback in a sheet-metal-bending operation is the result of which one of the following: (a) elastic modulus of the metal, (b) elastic recovery of the metal, (c) overbending, (d) overstraining, or (e) yield strength of the metal? 3. The cutting force in a sheet-metal blanking operation depends on which mechanical property of the metal (one correct answer): (a) compressive strength, (b) modulus of elasticity, (c) shear strength, (d) strain rate, (e) tensile strength, or (f) yield strength? 4. A circular sheet-metal slug produced in a hole punching operation will have the same diameter as (a) the die opening or (b) the punch? 5. As sheet-metal stock hardness increases in a blanking operation, the clearance between punch and die should…
What will be the maximum rotational speed (in rpm) of a 30 cm diameter shaft which will transmit 6000 hp if its shear stress must not exceed 34 MPa? Answer: 237.1 rpm
Q3/ including setting the machine, a worker manufactures 79 pieces of different tools in 7 hours and 15 minutes. If the standard time for the tool was Setting time = 40 min Production time per tool= 10 min Compute: 1-The standard time for manufacturing the 79 tools 2-Efficiency of operator
You have a job to upgrade a unit on a refrigerated trailer to the new R-134arefrigerant. You set the rates as follows: reclaiming the old R-12 so it can bedisposed, $17.00; flushing and replacing the seals on the system, $6.17; andrecharging the new system, $6.25. Labor involved is 3 hours at $23.00 anhour. There is no sales tax for this bill. Write a bill for this job.
B).shear stress caused by T C).APply miaximum-Distortion-energy Theory and calculate Mises equivalent stress. Enter your answer in MPa to 2 decimal places. D). determine factor of safety n (upto 2 decimal places)
A press machine is capable of punching 6 washers at same time whose size is 28mm x 12mm x 2mm & has an ultimate shearing strength of 320MPa. It is desired to change-over the punching process to produce smaller washers whose size is 20mm x 6.5mm x 1.2mm & has an ultimate shearing strength of 280MPa. Determine how many washers can be punched at one time in smaller washers.