What type of motor runs at a single rotator speed?
A. AC
B. DC
C. Single or fixed speed
D. Variable speed
A. Incorrect. An AC motor is the most common type of motor used in the process industries, primarily because of the simplicity of its construction.
B. Incorrect. A DC motor is most commonly used in situations where variable speed or high-torque applications are needed.
C. Correct. A single or fixed speed motor runs at a single rotator speed.
D. Incorrect. A variable speed motor allows for the rotation speed of the motor to be adjusted.
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