A ____ switch permits power to be supplied to the circuit or not.
A. stop-run
B. float
C. pressure
D. flow
Answer: A
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Which of the following is a hazard that can occur when the steam trap fails to open?
A. Wasted steam B. Leaking piping C. Stress cracking D. Upset conditions
All of the following are considered drawbacks of today's Holstein's except:
a. highly shortened production timeline b. tendencies toward lameness c. markedly less fertility d. considerably broader genetic lines
A machine used to shred cardboard boxes for composting has a first cost of $10,000, an AOC of $7000 per year, a 3-year life, and no appreciable salvage value. Assume you were told that the service provided by the machine will be needed for only 5 years, which entails a repurchase and retention for only 2 years. What salvage value, S, is required after 2 years in order to make the 2-year AW value the same as it is for its 3-year life cycle AW? Assume i = 10% per year. Solve using factors and, if assigned, using a spreadsheet and Goal Seek.
What will be an ideal response?
You, an engineer, and an attorney friend, Rob, started a small business 3 years ago to do energy audits for small businesses. A piece of equipment that costs $25,000 then has become prematurely obsolete and needs to be replaced with a solid state version that has a purchase price of $20,000 and the current equipment has a nil salvage value. Your company accountant shows the book value of the equipment to be $10,000. (a) If you buy the solid state equipment, how should the difference between the cost of the new equipment and the value of the old equipment be considered? (b) Your partner thinks of this difference as an added cost to the new equipment, effectively making its purchase price $30,000. Is she correct?
What will be an ideal response?