Synchronous Motor Multiple Choice Questions and Answers


21. A synchronous motor will always stop when


   A.Supply voltage fluctuates

   B.Load in motor varies

   C.Excitation winding gets disconnected

   D.Supply voltage frequency changes


✔ View Answer


C.Excitation winding gets disconnected

✍ Your Comments

Your name:

Your Email:

Your Comments:



22. A synchronous motor working at leading power factor can be used as


   A.Voltage booster

   B.Phase advancer

   C.Noise generator

   D.Mechanical synchronizer


✔ View Answer


B.Phase advancer

✍ Your Comments

Your name:

Your Email:

Your Comments:



23. The percentage slip in case of a synchronous motor is


   A.1%

   B.100%

   C.0.5%

   D.Zero


✔ View Answer


D.Zero

✍ Your Comments

Your name:

Your Email:

Your Comments:



24. The shaft of synchronous motor is made of


   A.Mild steel

   B.Chrome steel

   C.Alnico

   D.Stainless steel


✔ View Answer


A.Mild steel

✍ Your Comments

Your name:

Your Email:

Your Comments:



25. Hunting in a synchronous motor takes place


   A.When supply voltage fluctuates

   B.When load varies

   C.When power factor is unity

   D.Motor is under loaded


✔ View Answer


B.When load varies

✍ Your Comments

Your name:

Your Email:

Your Comments:




< 1 2 3 4 5 6 7 8 9 10 Next>






Enter Your Suggestion/Comments Here










Can't read the image? Click here to refresh