Motors that used a centrifugal switch to disconnect the start windings cannot be used with variable voltage control.

Answer the following statement true (T) or false (F)


True

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In the absence of a discharge path when using the CEMF controller and dynamic braking, what damage would occur due to the high voltage?

What will be an ideal response?

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Answer the following statements true (T) or false (F)

1 Newton’s third law of motion states that for every action, there is a lesser but similar reaction. 2 Labyrinth seals are single-layer seals used to allow small amounts of leakage inside the turbine. 3 AC motors are the most common type of motor used in the process industries due to their simplicity. 4 Variable speed motors allow for the rotation speed of the motor to be adjusted. 5 Synchronous motors are the most common type of AC motor.

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News stories about _____ are almost always newsworthy

a. personal issues b. technical issues c. issues in faraway locations d. financial issues

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According to Section 310.15(B)(7)(1), for one-family dwelling service entrance ratings of 100 through 400 amperes the service conductors can have a rating of _____ percent of the service rating.

a. 73 b. 83 c. 100 d. 125

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