Frequency is measured in _____.
A. watts
B. hertz
C. amperes
D. voltage
Answer: B
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The AW of the current process to make motion controllers is $–62,000 per year. A replacement process under consideration has estimates of P = $64,000, AOC = $38,000, and n = 3 years. Three engineers have given their opinions about what the salvage value of the new process may be in 3 years as $10,000, $14,500, and $18,000. (a) Is the decision to replace the process sensitive to the salvage value estimates at a MARR of 15% per year? (b) If sensitive, what is the lowest salvage value that justifies the replacement process?
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Piston rings are used to:
A. Seal the combustion chamber B. Remove excess oil from the cylinder wall C. Both A and B D. None of the above
A device that can be implemented to phase shift an SCR is the four-layer diode or ____ diode.
a. SUS b. Shockley c. Shockley Unilateral Switch d. SRS