The PWM drive that cannot be used to power several motors simultaneously is the __________ type.

A. volts/Hz
B. AC closed-loop
C. sensorless vector
D. b and c


Answer: D

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What is the power factor and how is it usually expressed mathematically?

What will be an ideal response?

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Nitrogenous waste from mammals is called ____________________

Fill in the blank(s) with correct word

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Motor oil is being discussed. Technician A says that the "W" in 10W-30 stands for "weight." Technician B says that thicker oils can cause lubrication problems in colder climates. Who is correct?

A. A only B. B only C. Both A and B D. Neither A nor B

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The number of the day of the year is known as the _______

A) Calender date B) Julian date C) Both A and B D) Neither A nor B

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