Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are rating of generators should be same. terminal voltage should be same. both A and B. polarities should be same. rating of generators should be same. terminal voltage should be same. both A and B. polarities should be same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor has external resistance Ra and Rf in the armature and field circuits respectively. Armature current at starting can be reduced by keeping Rf maximum and Ra minimum Ra minimum and Rf minimum Ra maximum and Rf minimum Ra maximum and Rf maximum Rf maximum and Ra minimum Ra minimum and Rf minimum Ra maximum and Rf minimum Ra maximum and Rf maximum ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft of induction motor should be flexible. any of these. stiff. hollow. flexible. any of these. stiff. hollow. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in a conductor rotating in a bipolar field is DC. AC. None of these both of above. DC. AC. None of these both of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has the highest starting torque? None of these Same in both induction motors. Slip ring induction motor. Squirrel cage induction motor. None of these Same in both induction motors. Slip ring induction motor. Squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in dc machine provide ----------------- rectification? full wave half wave controlled full wave controlled half wave full wave half wave controlled full wave controlled half wave ANSWER DOWNLOAD EXAMIANS APP
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