If two north magnetic poles are brought close to each other, ________
A) an electromagnet is created B) a force of repulsion pushes them apart
C) a current is induced D) a force of attraction pulls them together
B
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____________________ is the preferred form of energy because it is clean, easily controlled, and equally well-suited for micro and macro applications.
Fill in the blank(s) with the appropriate word(s).
Goals are differentiated by
a. level and area. b. time frame and specificity. c. time frame and level. d. area and specificity. e. All of these are correct.
A process control manager is considering two robots to improve materials handling capacity in the production of rigid shaft couplings that mate dissimilar drive components. Robot X has a first cost of $84,000, an annual M&O cost of $31,000, a $40,000 salvage value, and will improve revenues by $96,000 per year. Robot Y has a first cost of $146,000, an annual M&O cost of $28,000, a $47,000 salvage value, and will increase revenues by $119,000 per year. The company’s MARR is 15% per year and it uses a 3-year study period for economic evaluations. Which one should the manager select (a) on the basis of ROR values, and (b) on the basis of the incremental ROR value? (c) Which is the correct selection basis? Perform the analysis by hand or spreadsheet, as instructed.
What will be an ideal response?
When reinforcing frame rails to support increased loads, what other factors should be taken into account?
A. suspension weight rating B. axle weight rating C. brake capacity D. all of the above