A pony motor is used for the starting which of the following motors ?

Related Mcqs:

1. In squirrel cage induction motors which of the following methods of starting cannot be used ?

   A. Resistance in rotor circuit B. Resistance in stator circuit C. Auto-transformer starting D. Star-delta starting...

2. need frequent starting and stopping of electric motors ?

   A. Paper mills B. Grinding mills C. Air-conditioners D. Lifts and hoists...

3. In ________________ method of staging three phase induction motors the starting voltage is not reduced?

   A. auto-transformer B. star-delta C. slip ring D. any of the above...

4. For a motor-generator set which of the following motors will be preferred ?

   A. Synchronous motor B. Slip ring induction motor C. Pole changing induction motor D. Squirrel cage induction motor...

5. The starting torque of a D.C. motor is independent of which of the following?

   A. Flux B. Armature current C. Flux and armature current D. Speed...

6. _________________method of starting a three phase induction motor needs six terminals ?

   A. Star-delta B. Resistance starting C. Auto-transformer D. None of the above...

7. ________________ motor is a constant speed motor?

   A. Synchronous motor B. Schrage motor C. Induction motor D. Universal motor...

8. A wound rotor induction motor is preferred, as compared to squirrel cage induction motor, when major consideration is____________________?

   A. slop speed operation B. high starting torque C. low windage losses D. all of the above...

9. For which of the following applications D.C. motors are still preferred ?

   A. High efficiency operation B. Reversibility C. Variable speed drive D. High starting torque...

10. Which of the following motors is preferred when smooth and precise speed control over a wide range is desired ?

    A. D.C. motor B. Squirrel cage induction motor C. Wound rotor induction motor D. Synchronous motor...