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Three Phase Induction Motors

Three Phase Induction Motors
The full load slip of a 3-phase induction motor ranges from

10 to 20 %
20 to 30 %
None of the listed here
2 to 5 %

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Three Phase Induction Motors
The condition of induction motor on load resemble those of a transformer whose secondady is _______

None of the listed here
Supplying a variable resistive load
Open circuited
Short circuited

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

Low resistance
None of the listed here
High inductance
High resistance

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Three Phase Induction Motors
In a squirrel cage induction motor, the number of rotor bars is generally ________

Even number
None of the listed here
Equal to stator poles
Prime number

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Three Phase Induction Motors
The reactance of the rotor circuit of a 3-phase induction motor is maximum at

Starting
Full load
No load
Half full load

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Three Phase Induction Motors
In an induction motor the relationship between stator slots and rotor slots is that

Stator slots are not exact multiple of rotor slots
Stator slots are equal to rotor slots
Stator slots are exact multiple of rotor slots
None of the listed here

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