Electrical Machines In a synchronous motor, damper windings are provided on None of these pole faces. rotor shaft. stator frame. None of these pole faces. rotor shaft. stator frame. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following speed control of DC motor the speed obtained is below than the rated speed? Armature voltage control. Armature circuit resistance control. Any of above. Field resistance control. Armature voltage control. Armature circuit resistance control. Any of above. Field resistance control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The coil spam can never be equal to pole pitch. may or may not be exactly equal to people pitch. none of above. must be exactly equal to people pitch. can never be equal to pole pitch. may or may not be exactly equal to people pitch. none of above. must be exactly equal to people pitch. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. power factor. speed. magnetizing current. air gap flux. power factor. speed. magnetizing current. air gap flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control provides speed control in one direction only. above rated speed. below rated speed. in both direction. in one direction only. above rated speed. below rated speed. in both direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a compensated DC series motor, the compensating winding is provided As a separate unit. In parallel with the armature winding. In parallel with the field winding. In series with the armature winding. As a separate unit. In parallel with the armature winding. In parallel with the field winding. In series with the armature winding. ANSWER DOWNLOAD EXAMIANS APP
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