Objective Questions on Synchronous Motor Working Principle

  1. The phase of emf induced in the armature of a synchronous motor depends upon

    Under construction.

  2. A 3-phase synchronous motor has

    Under construction.

  3. Synchronous motors generally have

    Under construction.

  4. Number of slip rings in a synchronous motor will be

    Under construction.

  5. An ideal synchronous motor has no starting torque because the

    Under construction.

  6. In a synchronous motor the magnitude of field flux

    Under construction.

  7. What is the angle between the induced voltage and supply voltage of a synchronous motor under running condition ?

    Under construction.

  8. The armature electric current of a synchronous motor on no load

    Under construction.

  9. In a synchronous motor

    Under construction.

  10. In a synchronous motor electromagnetic power varies

    Under construction.

  11. Synchronous motor always runs at

    Under construction.

  12. A synchronous motor can be started by

    Under construction.

  13. The working of a synchronous motor is similar to

    Under construction.

  14. Synchronous motor are

    Under construction.

  15. When the voltage applied to a synchronous motor is increased, which of the following will reduce ?

    Under construction.

  16. In a synchronous motor

    Under construction.

  17. When does a synchronous motor operate with leading power factor electric current?

    Under construction.

  18. The relative speed between the magnetic field of stator and rotor under steady state operation is zero for

    Under construction.

  19. Electromagnetic torque is present in rotating machine when

    Under construction.

  20. Which motor can conveniently operate at lagging as well as leading power factor ?

    Under construction.