Prelim Exam - Engineering Economics
10 Questions
| Total Attempts: 117
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Questions and Answers
- 1.
![An electric power plant uses solid waste for fuel in the production of electricity. The cost y in dollars per hour to produce electricity is , where X is in megawatts. Revenue in dollars per hour from the sale of electricity is . Find the value of x that gives maximum profit. - ProProfs]( "An electric power plant uses solid waste for fuel in the production of electricity. The cost y in dollars per hour to produce electricity is , where X is in megawatts. Revenue in dollars per hour from the sale of electricity is . Find the value of x that gives maximum profit.")
An electric power plant uses solid waste for fuel in the production of electricity. The cost y in dollars per hour to produce electricity is , where X is in megawatts. Revenue in dollars per hour from the sale of electricity is . Find the value of x that gives maximum profit. - 2.The fixed costs incurred by a small genetics research lab are $(200,000-30N) per year. Variable costs are (60+(N/2))% of the annual revenue. If annual revenue is $300,000, the annual profit/loss is most nearly?
- 3.In a gold mining area in Davao the ore contains, on the average one ounce of gold per ton. One method of processing “A” costs P(1,500-N) per ton and recovers 90% of the gold. Another method "B" costs only P(1,200+N) per tom and recovers 80% of the gold. If gold can be sold for P4,000 per ounce, which method is better and by how much?
- 4.Five years ago, a house was purchased for P34,000. If it is sold today for P(50,000+20N), what is the rate of appreciation of its value.
- 5.An amount of P3,000 is invested for (9+(N/2)) years at 6% compounded quarterly. Determine the amount of interest earned by the investment.
- 6.
- If P(10,000+200N) is invested at 12% interest compounded annually, determine how many years it will take to double.
- 7.
- If P(10,000+200N) is invested at 12% interest compounded annually, determine how many years it will take to double.
- 8.Optimal volume (demand) occurs when total costs equal total revenues. Is it true or false?
- A.
True
- B.
False
- 9.A related sunk cost will normally affect the prospective cash flows associated with a situation. Is it true or false?
- A.
True
- B.
False
- 10.A nonrefundable cash outlay (e.g., money spent on a passport) is an example of an opportunity cost. Is it true or false?
- A.
True
- B.
False
Questions: 40 | Attempts: 247 | Last updated: Mar 25, 2021
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Sample QuestionAn electronic device capable of handling large arithmetic and logical operations is called __________.
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Sample QuestionWhich of the following is an example of an input device?
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Sample Question___________ is concerned with activities involved in trasferring of goods from producers to final consumers and users.
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