Electrical Machines Equalizer rings are used in which of the followings? wave winding lap winding None of these both 1 and 2 wave winding lap winding None of these both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. power factor. speed. air gap flux. magnetizing current. power factor. speed. air gap flux. magnetizing current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 240 volt. 440 volt. 230 volt. 220 volt. 240 volt. 440 volt. 230 volt. 220 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound 4 pole dc motor has 460 conductors. Find the number of parallel paths between the conductors? 6. 2. 4. data provided is insufficient. 6. 2. 4. data provided is insufficient. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. armature circuit shunt field none of above both A and B armature circuit shunt field none of above both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is done in speed control of DC motor by field flux control? Inserting an additional resistance in the armature circuit. Inserting an additional resistance in the field circuit. Any of above. Inserting resistance to armature circuit and field circuit. Inserting an additional resistance in the armature circuit. Inserting an additional resistance in the field circuit. Any of above. Inserting resistance to armature circuit and field circuit. ANSWER DOWNLOAD EXAMIANS APP
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