In medium sized induction motors, the slip is generally around? Mark as favorite Copy Link 0.04% 0.4% 4% 14% Check Answer
The shaft of an induction motor is made of? Mark as favorite Copy Link high speed steel stainless steel carbon steel cast iron Check Answer
In a three-phase induction motor, the number of poles in the rotor winding is always? Mark as favorite Copy Link zero more than the number of poles in stator less than number of poles in stator equal to number of poles in stator Check Answer
It is advisable to avoid line starting of induction motor and use starter because? Mark as favorite Copy Link it will run in reverse direction it will pick up very high speed and may go out of step motor takes five to seven times its full-load current starting torque is very high Check Answer
The torque developed by a 3-phase induction motor least depends on? Mark as favorite Copy Link rotor current rotor power factor rotor e.m.f. shaft diameter Check Answer
If s is the slip and f is the supply frequency, the frequency of rotor current is given by? Mark as favorite Copy Link s.f s2f s.f/2 f/s Check Answer
In an induction motor the relationship between stator slots and rotor slots is that? Mark as favorite Copy Link stator slots are equal to rotor slots stator slots are exact multiple of rotor slots stator slots are not exact multiple of rotor slots none of the above Check Answer
In medium sized induction motors, the slip is generally around? Mark as favorite Copy Link 0.04% 0.4% 4% 14% Check Answer
The torque developed by a 3-phase induction motor least depends on? Mark as favorite Copy Link rotor current rotor power factor rotor e.m.f. shaft diameter Check Answer
The power factor of an induction motor under no-load conditions is about? Mark as favorite Copy Link 0.2 lag 0.4 lag unity 0.4 lead Check Answer