While selecting an electric motor for a floor mill, which electrical characteristics will be of least significance ?

Related Mcqs:

1. Which feature, while selecting a.motor for centrifugal pump, will be of least significance ?

   A. Starting characteristics B. Operating speed C. Horse power D. Speed control...

2. While selecting motor for an air conditioner which of the following characteristics is of great importance ?

   A. Type of bearings B. Type of enclosure C. Noise D. Arrangement for power transmis¬sion E. None of the above...

3. Which of the following is essentially needed while selecting a motor ?

   A. Pulley B. Starter C. Foundation pedal D. Bearings...

4. The electric charge of 100 °C is 13cm apart from another charge 16.9°C electric force between them is_____________?

   A. 9x107N B. 900N C. 9x105N D. 9x106N...

5. The selection of an electric motor for any application depends on which of the following factors ?

   A. Electrical characteristics B. Mechanical characteristics C. Size and rating of motors D. Cost E. All of the above...

6. The diameter of the rotor shaft for an electric motor depends on which of the following ?

   A. r.p.m. only B. Horse power only C. Horse power and r.p.m. D. Horse power, r.p.m. and power factor...

7. Which one of the following devices does not function like an electric motor ?

   A. Galvanometer B. Ammeter C. Voltmeter D. Transformer...

8. ________________ motor is a constant speed motor?

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

9. 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...

10. In a paper mill where constant speed is required________________?

    A. synchronous motors are preferred B. A.C. motors are preferred C. individual drive is preferred D. group drive is preferred...