Electrical Machines For a 3 - Φ, 4 pole, 50 Hz IM rotating at full load speed of 1440 rpm, calculate speed of rotor field with respect to rotor structure and stator structure respectively? 60, 1500. 50, 1500. 1440, 1500. 60, 1440. 60, 1500. 50, 1500. 1440, 1500. 60, 1440. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronising power of a synchronous motor varies All of these inversely as 1/Xs directly as synchronous reactances Xs directly as Xs2 All of these inversely as 1/Xs directly as synchronous reactances Xs directly as Xs2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer operating at constant voltage if the input frequency increases, the core loss decrease. increase. None of these remains constant. decrease. increase. None of these remains constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of dynamically induced emf is utilized in transformer. thermocouple. generator. choke. transformer. thermocouple. generator. choke. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in the dc generator armature winding is None of these AC and DC AC DC None of these AC and DC AC DC ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shunt dc motor the direction of rotation of the motor will reversed. When either field terminals are reversed or armature terminals are reversed. none of above. only armature terminals are reversed. only field terminals are changed. either field terminals are reversed or armature terminals are reversed. none of above. only armature terminals are reversed. only field terminals are changed. ANSWER DOWNLOAD EXAMIANS APP
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