Electrical Machines Which of the following is/are the advantages of carbon brush over the copper brush? In case of any sparking they will be less damaged than copper brushes They are not hard as copper brush They are self lubricating in nature All of these In case of any sparking they will be less damaged than copper brushes They are not hard as copper brush They are self lubricating in nature All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The size of inter poles is small as compared to main poles. What is the reason? In order to get more flux. In order to get saturated. In order to not to get saturated. All of these In order to get more flux. In order to get saturated. In order to not to get saturated. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The functions of inter poles are None of these both 1 and 2 nullify reactance voltage and improve the commutation. reduce cross magnetization effect and improve commutation None of these both 1 and 2 nullify reactance voltage and improve the commutation. reduce cross magnetization effect and improve commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct ? Compensating winding will act under the pole. Inter pole winding will act in interpolar region. None of these Both A and B. Compensating winding will act under the pole. Inter pole winding will act in interpolar region. None of these Both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of main field flux distribution is? saddle shape triangular peaky in nature flat tapped or trapezoidal saddle shape triangular peaky in nature flat tapped or trapezoidal ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS