DC Motors Which one of the following is not the function of pole shoes in a D.C. machine? To reduce the reluctance of the magnetic path To support the field coils To spread out flux for better uniformity To reduce eddy current loss To reduce the reluctance of the magnetic path To support the field coils To spread out flux for better uniformity To reduce eddy current loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving None of the listed here Machine tools Cranes and hoists Shear and punches None of the listed here Machine tools Cranes and hoists Shear and punches ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Slip rings Commutator Field winding Armature winding Slip rings Commutator Field winding Armature winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors The greatest percentage of power loss in a dc motor is due to Copper loss Friction loss Windage loss Core loss Copper loss Friction loss Windage loss Core loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors By putting controller resistance in series with the armature of a dc motor, we can obtain speeds Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors A compensating winding is an auxiliary winding embedded in slots in None of the listed here The pole faces of main poles The armature Partly in pole faces, partly in armature None of the listed here The pole faces of main poles The armature Partly in pole faces, partly in armature ANSWER DOWNLOAD EXAMIANS APP
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