The __________ feedback loop of a vector drive is used to control the magnitude of the stator current.
A. speed
B. velocity
C. current
D. position
Answer: C
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All of the following statements are true EXCEPT:
A. the release bearing is lubricated and then sealed at the factory. B. self-centering release bearings are used on front-wheel-drive cars because they do not use a pilot bearing in the crankshaft. C. curved release levers go against curved bearings, and flat release levers go against flat bearings. D. some release bearings are flat on their face and others are curved.
Why are pipe jack stands useful for a welder to have??
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Which section of a bit error rate test (BERT) set measures the received test pattern?
a. Emitter. b. Receiver. c. Transmitter. d. Synchronizer.