In the Shaded-Pole Induction Motor, the Direction of Rotation of the Magnetic

question 12

Multiple Choice

In the shaded-pole induction motor, the direction of rotation of the magnetic field is determined by the _____.

• A) generator power
• B) rotor construction
• C) shading coil diameter
• D) magnetic field strength

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Definitions:

Pooled Standard Deviation

A combined standard deviation used when variances from two or more groups are assumed to be equal for analysis.

Sample Means

The average value calculated from a sample of data, which estimates the mean of the entire population.

Control Limits

Statistically determined lines on a control chart outside of which a process is considered to be out of control or unnatural variations.

Assignable Variation

Changes within a process stemming from particular causes, instead of occurring randomly.