Where should the vapor barrier be placed when insulating walls?

A) towards the outer wall B) about halfway between the inner and outer wall
C) outer walls should not use a vapor barrier D) towards the inside wall


D

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The very foundation of all agriculture is that of growing ____________________

Fill in the blank(s) with correct word

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Two designs have been proposed for a short span bridge in a rural area, as shown in the following table. The first proposal is to construct the bridge in two phases (Phase I now and Phase II in 25 years). The second alternative is to construct it in one phase. Assuming that the annual interest rate is 4%, determine which alternative is preferred using present worth analysis.



What will be an ideal response?

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The AW values for retaining a presently owned machine for additional years are shown in the table. Note that the values represent the AW amount for each of the n years that the asset is kept, that is, if it is kept 5 more years, the annual worth is $95,000 for each of the 5 years. Assume that future costs remain as estimated for the re­placement study and that used machines like the one presently owned will always be available.

(a) What is the ESL and associated AW of the defender at a MARR of 12% per year?
(b) A challenger with an ESL of 7 years and an AWC = $ ?89,500 per year has been identi­fied. Which AW will be less for the respec­tive ESL periods?

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To check for ripple voltage from the alternator, connect a digital multimeter (DMM) and select ________

A) AC amps B) DC amps C) DC volts D) AC volts

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