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Electrical Machines

Electrical Machines
To eliminate 5th harmonic in the induced voltage phase breadth should be

 18°
 72°
 36°
 30°

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Electrical Machines
In which of the following, voltage regulation may be zero or negative

 unity power factor
 lagging power factor
 leading power factor
All of these

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Electrical Machines
Maximum power developed depends on

 both 1and 2
 voltage
 reactance
 load angle

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Electrical Machines
Regenerative braking is not found in which motor?

 DC shunt.
 Induction motor.
 DC compound.
  DC series.

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Electrical Machines
Value of specific electric loading of Induction motor is in the range of

 30000 - 100000 ampere conductor / metre.
 40 - 400 ampere conductor / metre.
  400 - 4000 ampere conductor / metre.
  5000 - 45000 ampere conductor / metre.

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Electrical Machines
The field divertor resistance for a DC series motor is of order of

 50 Ω
 10 Ω
 0.1 Ω
 100 Ω

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MORE MCQ ON Electrical Machines

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