Electrical Machines An unexcited single phase synchronous motor is AC series motor. repulsion motor. reluctance motor. universal motor. AC series motor. repulsion motor. reluctance motor. universal motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Winding conductors of an electrical power transformer are mainly insulated by cotton insulation. paper insulation. wooden insulation. rubber insulation. cotton insulation. paper insulation. wooden insulation. rubber insulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor the speed can be increased by Increasing the field current. Increasing the field current. Decreasing the field current. Increasing the armature current. Increasing the field current. Increasing the field current. Decreasing the field current. Increasing the armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Doubled. Remains same. Eight times. Four times. Doubled. Remains same. Eight times. Four times. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In speed control of DC Series motor, speed lower than the rated speed can be obtained by Connecting an additional resistance in stator circuit. Connecting an additional resistance in the field circuit. Connecting an additional resistance in the armature circuit. Any of the above. Connecting an additional resistance in stator circuit. Connecting an additional resistance in the field circuit. Connecting an additional resistance in the armature circuit. Any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. armature circuit both A and B none of above shunt field armature circuit both A and B none of above shunt field ANSWER DOWNLOAD EXAMIANS APP
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