Electrical Machines The shaft of induction motor should be flexible. any of these. hollow. stiff. flexible. any of these. hollow. stiff. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will depend on other factors. reduce by 5 %. remain unchanged. increase by 5 %. depend on other factors. reduce by 5 %. remain unchanged. increase by 5 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a Dc generator the magnetic neutral axis coincide with geometrical neutral axis, when the generator runs on designed speed. the generator runs on overload. there is no load on the generator. the generator runs on full load. the generator runs on designed speed. the generator runs on overload. there is no load on the generator. the generator runs on full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous motor can be started by coupling it with a small AC induction motor called the pony motor. providing damper winding in its rotor circuit. coupling it with a DC compound motor. any of the above methods. coupling it with a small AC induction motor called the pony motor. providing damper winding in its rotor circuit. coupling it with a DC compound motor. any of the above methods. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer core is made up of a silicon steel laminations which has maximum flux density 1 Tesla. If it was cold rolled grain oriented its flux density increases to 1.6 Tesla. What is the saving in core size or area due to cold rolled grain oriented process? 40% 68% 38% 60% 40% 68% 38% 60% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines _____________ types of induction motor are widely used. Single phase IM. Slip ring IM. Three phase IM. Squirrel cage IM. Single phase IM. Slip ring IM. Three phase IM. Squirrel cage IM. ANSWER DOWNLOAD EXAMIANS APP
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