Electrical Machines Equalizer rings are used in which of the followings? both 1 and 2 None of these lap winding wave winding both 1 and 2 None of these lap winding wave winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature mmf armature flux armature current All of these armature mmf armature flux armature current All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10 mwb. find the generated emf? 20V 200V 10V 100V 20V 200V 10V 100V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator sparking between brushes and commutator surface may be due to over commutation. too rapid reversal of current. any of the above. under commutation. over commutation. too rapid reversal of current. any of the above. under commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a dc motor the ratio Eb / E is indicative of ratio of starting to running torque. efficiency. ratio of starting to running current. ratio of input to output voltage. ratio of starting to running torque. efficiency. ratio of starting to running current. ratio of input to output voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a shunt generator delivers 100 A at 200 V, and the resistances of the shunt field and armature are 100 ohms and 0.01 ohms respectively, the generator emf will be any one of the connection. parallel. no resistance is connected. series. any one of the connection. parallel. no resistance is connected. series. ANSWER DOWNLOAD EXAMIANS APP
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