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QUESTIONS

Three Phase Induction Motors
In a squirrel cage induction motor, the number of stator slots is _______ rotor slots.

Always less than the number of
Either more or less than the number of
Always greater than the number of
Always eqaul to the number of

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Three Phase Induction Motors
A four speed squirrel cage induction motor uses______ stator windings.

Two
One
Four
Three

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Three Phase Induction Motors
If the rotor slots are made deeper, rotor resistance is ______

Increased at starting
None of the listed here
Decreased at starting
Increased under running conditions

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Three Phase Induction Motors
Very large 3-phase induction motors (greater than 25 HP) are started _____

Direct on line
None of the listed here
By auto transformer starting
Star-delta starting

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Three Phase Induction Motors
In a double squirrel cage induction motor, the outer cage winding has _______

High resistance
Low resistance
None of the listed here
High inductance

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