Which of these enrichment features is intangible?
a. a fish pond c. the croaking of a frog
b. a bird's nest d. a lilac bush
C
the croaking of a frog
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Temperature can be measured with which of the following?
a. glass tube thermometer b. thermocouple c. infrared thermometer d. all of the above
Jennifer, a senior project manager, estimated net cash flow after taxes (CFAT) for a large project she is working on. The additional CFAT of $2,800,000 in year 10 is the salvage value, estimated at 9% of the $31 million first cost for all capital assets.
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The PW value at the current MARR of 7% per year is
PW = ?31,000 + 5400(P?A,7%,6) + 2040(P?A,7%,4)(P?F,7%,6) + 2800(P?F,7%,10) = $767
Jennifer believes the MARR will vary over a relatively narrow range, as will the CFAT, especially during the out years of 7 through 10. She is willing to accept the other estimates as certain. Use the following probability distribution assumptions for MARR and CFAT to perform a simulation—hand- or spreadsheet-based.
MARR. Uniform distribution over the range 6% to 10%.
CFAT, years 7 through 10. Uniform distribution over the range $1,600,000 to $2,400,000 for each year.
You are computing proper ventilation for a house with 1500 square feet of floor space, 8 foot ceilings, and you wish to have 1 air change per hour. What is the total ventilation in CFM required?
A) 200 CFM B) 350 CFM C) 100 CFM D) 110 CFM
What is the reactance of a 100 ?H inductor operating at 100 kHz?
A) 6.28 ? B) 62.8 ? C) 62.8 k? D) infinite ?