Electrical Machines Which of the following induction motor has maximum speed? 8 pole. 4 pole. 6 pole. 2 pole. 8 pole. 4 pole. 6 pole. 2 pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To achieve spark less commutation brushes of DC generator are rocked ahead so as to bring them in magnetic neutral axis. None of these just ahead of magnetic neutral axis. just behind the magnetic neutral axis. in magnetic neutral axis. None of these just ahead of magnetic neutral axis. just behind the magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The mechanical power is developed by a DC motor is maximum when none of above. back emf is equal to applied voltage. back emf is equal to half of applied voltage. back emf is equal to twice of applied voltage. none of above. back emf is equal to applied voltage. back emf is equal to half of applied voltage. back emf is equal to twice of applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through commutator. solid connection. slip rings. none of above. commutator. solid connection. slip rings. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor torque or load angle δ ------------- with increase in load increases None of these remains unaffected decreases increases None of these remains unaffected decreases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For power factor improvement the synchronous motor is to be heavily loaded and underexcited lightly loaded and underecited heavily loaded and over excited lightly loaded and over excited heavily loaded and underexcited lightly loaded and underecited heavily loaded and over excited lightly loaded and over excited ANSWER DOWNLOAD EXAMIANS APP
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