Electrical Machines A 3 - φ induction motor can also be referred to as a shunt motor. asynchronous motor. transformer. repulsion motor. shunt motor. asynchronous motor. transformer. repulsion motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce volume of iron. volume of copper. reluctance of core. iron loss. volume of iron. volume of copper. reluctance of core. iron loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for voltage build up in self excited generator? Field winding should be properly connected to armature winding. Poles should contain residual flux. All of these Field winding resistance should be less than critical resistance. Field winding should be properly connected to armature winding. Poles should contain residual flux. All of these Field winding resistance should be less than critical resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The squirrel cage induction motors are provided with blades in order to eliminate noise. facilitate cooling of rotor. none of these. balance the rotor dynamically. eliminate noise. facilitate cooling of rotor. none of these. balance the rotor dynamically. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is None of these leading power factor unity power factor lagging power factor None of these leading power factor unity power factor lagging power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc motors, under leading pole tips flux density will--------? either increase or decrease increase decrease None of these either increase or decrease increase decrease None of these ANSWER DOWNLOAD EXAMIANS APP
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