Electrical Machines Motors for fans and pumps are selected in the rpm range 500 to 720. 1440 to 2880. 720 to 920. 375 to 500. 500 to 720. 1440 to 2880. 720 to 920. 375 to 500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction of rotation, the machine operating is asynchronous generator. synchronous generator. asynchronous motor. synchronous motor. asynchronous generator. synchronous generator. asynchronous motor. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines, the interpoles are provided to counteract the reactance voltage and the cross-magnetizi to counteract demagnetizing effect of armature mmf in commutating zone. to make commutation spark less. both (B) and (C). to counteract the reactance voltage and the cross-magnetizi to counteract demagnetizing effect of armature mmf in commutating zone. to make commutation spark less. both (B) and (C). ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following pairs is/are correct? open slot----- leakage flux is less All of these semi closed slot-----leakage flux is moderate closed slot----- leakage flux is high open slot----- leakage flux is less All of these semi closed slot-----leakage flux is moderate closed slot----- leakage flux is high ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3-phase, 4 pole, 50 Hz synchronous motor the frequency, pole number and the frequency are halved. The motor speed will be 375 rpm 1500 rpm 75 rpm 3000 rpm 375 rpm 1500 rpm 75 rpm 3000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, brushes are always placed along load axis. armature axis. geometrical neutral axis. magnetic neutral axis. load axis. armature axis. geometrical neutral axis. magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
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