2012 മാർച്ച് 21, ബുധനാഴ്‌ച

Electrical Objective Type Questions

Select the correct answers and press submit if you are done..

 














Question #1: The two windings of a transformer is


Question #2: The d.c. series motor should always be started with load because


Question #3: The frequency of the rotor current in a 3 phase 50 Hz, 4 pole induction motor at full load speed is


Question #4: In a stepper motor the angular displacement


Question #5: The power factor of a squirrel cage induction motor is


Question #6: The generation voltage is usually


Question #7: When a synchronous motor is running at synchronous speed, the damper winding produces


Question #8: If a transformer primary is energised from a square wave voltage source, its output voltage will be


Question #9: In a d.c. machine, the armature mmf is


Question #10: In a transformer the voltage regulation will be zero when it operates at


Question #11: The emf induced in the primary of a transformer


Question #12: The current from the stator of an alternator is taken out to the external load circuit through


Question #13: A motor which can conveniently be operated at lagging as well as leading power factors is the


Question #14: A hysteresis motor


Question #15: The most suitable servomotor for low power applications is


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