Many variable-frequency drives can provide the ____ characteristic that is so desirable in DC motors.

a. low-speed torque
b. low power factor
c. high-speed torque
d. high power factor


a. low-speed torque

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The annual cash flows (in $1000 units) for Browning Brothers Glass Works are summarized.

(a) Determine the total net cash flow over the 5 years.
(b) Calculate the percentage of revenues represented by expenses for each year.



What will be an ideal response?

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If subfeed lugs are used, the electrician must ensure that the lugs are suitable for making ____.

A. taps B. multiple connections C. one connection D. lighting boards

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Describe the advantages and disadvantages of using wood as an alternative energy source

What will be an ideal response?

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Explain how an alternating welding current can be converted to a direct current.

What will be an ideal response?

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