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
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?
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?
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