Electrical Machines The frame of an induction motor is made of closed grained cast iron. stainless steel. aluminium. silicon steel. closed grained cast iron. stainless steel. aluminium. silicon steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, hysteresis and eddy current losses depend upon supply frequency both 2 and 3 maximum flux density load current supply frequency both 2 and 3 maximum flux density load current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The magnetic field which initially induces emf in the armature in a self excited DC generator is because of armature reaction. permanent magnets. residual magnetism. None of these armature reaction. permanent magnets. residual magnetism. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the maximum power factor of an induction motor for dispersion coefficient of 0.05? 0.05. 20. 1.1. 0.905. 0.05. 20. 1.1. 0.905. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Crawling in an induction motor is due to insufficient starting torque. time harmonics in supply. slip ring rotor. space harmonics produced by winding currents. insufficient starting torque. time harmonics in supply. slip ring rotor. space harmonics produced by winding currents. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is used for the _______ ? below rated speed None of these both 1 and 2 above rated speed below rated speed None of these both 1 and 2 above rated speed ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS