The magnetic field of the rotor is:
A) Opposite in polarity as the stator magnetic field. B) Always oriented to the north.
C) Permanently set at the factory. D) The same polarity as the stator magnetic field.
A
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Which of the following describes an autotransformer?
a. A transformer that is normally used with metering equipment when the line voltage is too high for the metering equipment b. A transformer that has no electrical metallic connection between the primary and secondary windings c. A transformer with two secondary windings that can deliver two secondary voltages d. A transformer that uses a single winding for both its primary and secondary
Cuando se monten en pared unas bandejas portacables, asegúrese de que:
a. la estructura del edificio es suficientemente fuerte para soportar el sistema de bandeja. b. también se utiliza soporte de trapecio. c. también se utiliza suspensión con varilla directa. d. solo se utiliza bandeja no metálica.
The wye connection, sometimes called a star connection, is a method of connecting coils together inside the alternator.
Answer the following statement true (T) or false (F)
ASE-Style Multiple Choice The term ____ refers to the degree of lightness or darkness of a color.
A. value B. hue C. chroma D. halo effect