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Electrical Machines

Electrical Machines
In a resistance split phase motor, what is the range of torque angle?

 70° to 85°
 0°
 90°
 25° to 30°

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Electrical Machines
Which of the following is the largest conversion device?

All of these
 DC machine
 Induction machine
 Synchronous machine

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Electrical Machines
DC machine is a

 none of above are correct.
 both are correct.
 convection machine.
 conduction machine.

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Electrical Machines
Maximum power developed in a cylindrical synchronous machine depends on

 excitation
 load angle
 synchronous reactance
 both 1and 2

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Electrical Machines
The three point starter is used for

  Series motor.
  Shunt, compound and series motor.
  Shunt motor as well as compound motors.
  Shunt motor.

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Electrical Machines
Tappings of a transformer are provided

 at the phase end of lv side
 at the phase end of hv side
 at the neutral side end of hv side
 at the middle of hv side

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