Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 200Hz. 100Hz. 50Hz. 150Hz. 200Hz. 100Hz. 50Hz. 150Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test on induction motor is conducted to find which of the following losses? Stator copper loss Stator core loss All of these Rotational loss Stator copper loss Stator core loss All of these Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following relation is correct? Xd = Xq. Xd < Xq. None of these Xd > Xq. Xd = Xq. Xd < Xq. None of these Xd > Xq. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The maximum possible speed at which an alternator can be driven to generate 50 Hz and 4000 V is 4000 rpm. 3000 rpm. 3600 rpm. 1500 rpm. 4000 rpm. 3000 rpm. 3600 rpm. 1500 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on which of the following? Core loss component. Shaft torque. Synchronous speed. Rotor speed. Core loss component. Shaft torque. Synchronous speed. Rotor speed. 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 None of these permanent magnets. residual magnetism. armature reaction. None of these permanent magnets. residual magnetism. armature reaction. ANSWER DOWNLOAD EXAMIANS APP
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