Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Shunt field resistance control. Armature resistance control. Any of above. Armature voltage control. Shunt field resistance control. Armature resistance control. Any of above. Armature voltage control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The induction motor shaft is made of stainless steel. mild steel. aluminium. cast iron. stainless steel. mild steel. aluminium. cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single phase transformer has specifications as 250 KVA, 11000 V/415 V, 50 Hz. What are the values of primary and secondary currents? primary = 602 A, secondary = 22.7 A primary = 301 A, secondary = 22.7 A primary = 22.7 A, secondary = 602.4 A primary = 11.4 A, secondary = 301 A primary = 602 A, secondary = 22.7 A primary = 301 A, secondary = 22.7 A primary = 22.7 A, secondary = 602.4 A primary = 11.4 A, secondary = 301 A ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction of rotation, the machine operating is synchronous motor. synchronous generator. asynchronous generator. asynchronous motor. synchronous motor. synchronous generator. asynchronous generator. asynchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which one of the following statement is correct ? In an induction motor if the air gap is increased then its speed will increase its speed will reduce its efficiency will improve its power factor will reduce its speed will increase its speed will reduce its efficiency will improve its power factor will reduce ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature current All of these armature flux armature mmf armature current All of these armature flux armature mmf ANSWER DOWNLOAD EXAMIANS APP
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