DC Motors These days dc motors are widely used in Air compressors Pumping sets Electric traction Machine shops Air compressors Pumping sets Electric traction Machine shops ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. Half Twice One-third None of the listed here Half Twice One-third None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To improve cooling To increase the generated emf To reduce the sparking To reduce the generated emf To improve cooling To increase the generated emf To reduce the sparking To reduce the generated emf ANSWER DOWNLOAD EXAMIANS APP
DC Motors Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control Three point starter is used Drum type controller is used Four point starter is used All above can be used Three point starter is used Drum type controller is used Four point starter is used All above can be used ANSWER DOWNLOAD EXAMIANS APP
DC Motors Small dc motors up to 5 HP usually have 2 poles 8 poles 6 poles 4 poles 2 poles 8 poles 6 poles 4 poles ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating pole winding is connected in None of the listed here Parallel with the armature Series-parallel with the armature Series with the armature None of the listed here Parallel with the armature Series-parallel with the armature Series with the armature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS