Electrical Machines When a synchronous motor is running at synchronous speed, the damper winding produces both 1 and 2. damping torqe. no torque. eddy current torque. both 1 and 2. damping torqe. no torque. eddy current torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the advantages of carbon brush over the copper brush? All of these They are not hard as copper brush In case of any sparking they will be less damaged than copper brushes They are self lubricating in nature All of these They are not hard as copper brush In case of any sparking they will be less damaged than copper brushes They are self lubricating in nature ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of DC Shunt Motor, the speed will____ if the voltage increases, neglecting armature saturation. be unpredictable. increase decrease. remain the same. be unpredictable. increase decrease. remain the same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Brush. Commutator. Armature. Yoke. Brush. Commutator. Armature. Yoke. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC Series motor is connected across an AC supply it will run at lower speed. not run. run at normal speed. burn. run at lower speed. not run. run at normal speed. burn. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the brushes remain in contact with conductors which lie under north pole. lie under south pole. lie in the inter polar gaps. there is no hard and fast rule for this. lie under north pole. lie under south pole. lie in the inter polar gaps. there is no hard and fast rule for this. ANSWER DOWNLOAD EXAMIANS APP
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