Electrical Machines A generator may loose residual magnetism due to vibrations. over excitation. any of these. heating. vibrations. over excitation. any of these. heating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The function of field regulator in a DC compound motor is to control field current. vary the armature resistance. limit the armature current. none of above. control field current. vary the armature resistance. limit the armature current. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following rotor requires damper winding? Cylindrical rotor. None of these Salient pole rotor. Both type rotor. Cylindrical rotor. None of these Salient pole rotor. Both type rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Armature resistance control. Shunt field resistance control. Any of above. Armature voltage control. Armature resistance control. Shunt field resistance control. Any of above. Armature voltage control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Methods of synchronizing of alternator may be done by all dark lamp method. one dark two bright. all bright lamp method. all of these. all dark lamp method. one dark two bright. all bright lamp method. all of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, maximum power occurs at a load angle of Greater than 90° less than 90° 90° 0° Greater than 90° less than 90° 90° 0° ANSWER DOWNLOAD EXAMIANS APP
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