Electrical Machines Armature reaction in dc motor results decrease in speed. increase in speed. open circuit. short circuit. decrease in speed. increase in speed. open circuit. short circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shunt dc motor the direction of rotation of the motor will reversed. When either field terminals are reversed or armature terminals are reversed. only field terminals are changed. none of above. only armature terminals are reversed. either field terminals are reversed or armature terminals are reversed. only field terminals are changed. none of above. only armature terminals are reversed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator frame in an induction motor is used to provide return path for the flux. hold armature stamping in position. ventilate the armature. protect the whole machine. provide return path for the flux. hold armature stamping in position. ventilate the armature. protect the whole machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor requires 3 point starter? Shunt motor. Series motor. Shunt, compound and series motor. Shunt motor as well as compound motors. Shunt motor. Series motor. Shunt, compound and series motor. Shunt motor as well as compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a star - delta starting of an IM applied voltage per stator phase is 57.7 % of a line volt reduced voltage is applied to the stator. line voltage is 57.7 % of stator voltage. resistance is inserted in the rotor. applied voltage per stator phase is 57.7 % of a line volt reduced voltage is applied to the stator. line voltage is 57.7 % of stator voltage. resistance is inserted in the rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tertiary winding in a transformer is mostly delta connected. star connected. zig - zag star connected. zig - zag delta connected. delta connected. star connected. zig - zag star connected. zig - zag delta connected. ANSWER DOWNLOAD EXAMIANS APP
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