Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are both A and B. terminal voltage should be same. rating of generators should be same. polarities should be same. both A and B. terminal voltage should be same. rating of generators should be same. polarities should be same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the advantages of carbon brush over the copper brush? They are not hard as copper brush They are self lubricating in nature In case of any sparking they will be less damaged than copper brushes All of these They are not hard as copper brush They are self lubricating in nature In case of any sparking they will be less damaged than copper brushes All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the space distribution of air-gap flux density wave at no load is sinusoidal flat-topped rectangular co- sinusoidal sinusoidal flat-topped rectangular co- sinusoidal ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Diverters are used only in series motors None of these either of these shunt motors series motors None of these either of these shunt motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field connection of a DC Shunt Motor is changed then motor will not run. it will run in opposite direction. it will run in same direction. it will run in same direction by slowly. motor will not run. it will run in opposite direction. it will run in same direction. it will run in same direction by slowly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Speed of DC motor can be controlled by varying its flux oer pole. resistance of armature culture. applied voltage. all of these. its flux oer pole. resistance of armature culture. applied voltage. all of these. ANSWER DOWNLOAD EXAMIANS APP
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