Trees from which lumber is obtained are divided into two broad categories?softwood trees and hardwood trees. Is the distinction between the two based on the strength of wood obtained from them, their botanical differences, or both? Explain.
What will be an ideal response?
The distinction is based only on the botanical differences.
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-7 + -13 + 4 + -5 = ____.
A. -21 B. -20 C. 21 D. 0
Relays have been used so extensively in industry that electrical blueprints are known as relay ladder diagrams or ____.
a. programmable controllers b. negative grounds c. relay ladder logic d. modified blueprints
An electric switch manufacturing company is trying to decide between three different assembly methods. Method A has an estimated first cost of $40,000, an annual operating cost (AOC) of $9000, and a service life of 2 years. Method B will cost $80,000 to buy and will have an AOC of $6000 over its 4-year service life. Method C costs $130,000 initially with an AOC of $4000 over its 8-year life. Methods A and B will have no salvage value, but Method C will have equipment worth 10% of its first cost. Perform both (a) future worth, and (b) present worth analyses to select the method at i = 10% per year.
What will be an ideal response?
_______________________ is/are great way(s) to uncover important aspects of a project .