Objective Questions on Construction of Three Phase Induction Motor

  1. The stator frame in an induction motor is used to

    Under construction.

  2. The frame of an induction motor is made of

    Under construction.

  3. Use of fractional pitch winding

    Under construction.

  4. The stator core of a 3-phase induction motor is laminated in order to reduce the

    Under construction.

  5. In a three phase slip-ring induction motor, brushes are connected to

    Under construction.

  6. The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in

    Under construction.

  7. The squirrel cage induction motors are provided with blades in order to

    Under construction.

  8. Induction motors normally use diecast aluminium rotor because aluminium is

    Under construction.

  9. The shaft of induction motor should be

    Under construction.

  10. The rotor of a 3-phase wound induction motor is provided with

    Under construction.

  11. In a 3-phase wound rotor induction motor the short circuit gear is used to short circuit the

    Under construction.

  12. Slip rings of an induction motors are made of

    Under construction.

  13. Which type of bearing is provided in small induction motors to support the rotor shaft ?

    Under construction.

  14. In three-phase induction motor some times copper bars are placed deep in the rotor to

    Under construction.

  15. The rotor slots are slightly skewed in squirrel cage induction motor to

    Under construction.

  16. The induction motor shaft is made of

    Under construction.

  17. The shaft of induction motor may be unbalanced due to

    Under construction.

  18. Motors for fans and pumps are selected in the rpm range

    Under construction.

  19. Induction motors provided with open slots have

    Under construction.

  20. If any two leads from slip rings are interchanged in a 3-phase induction motor, the motor will

    Under construction.