A(n) ____________________ transformer has a sliding brush that can provide any voltage from 0 to full output voltage.
Fill in the blank(s) with the appropriate word(s).
variable
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Which of the following may be used to detect unusual bearing noise during rundown when the motor is powered down?
a. Megger® b. Infrared thermometer c. Vibration tester d. Stethoscope
In automotive applications, an inverter is used to convert ________
A) DC current to BC current B) DC voltage to a lower DC voltage C) AC current to higher AC current D) DC current to AC current
Grasslands usually are populated:
A. only by members of the Poaceae family. B. only by dicotyledonous plants with blade-like leaves. C. predominately by blade-like dicotyledonous plants and a few Poaceae. D. predominately by Poaceae with other families mixed in.
A straight line contains _________ degrees.
Fill in the blank(s) with the appropriate word(s).