Electrical Machines Tappings of a transformer are provided at the neutral side end of hv side at the phase end of hv side at the middle of hv side at the phase end of lv side at the neutral side end of hv side at the phase end of hv side at the middle of hv side at the phase end of lv side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the operating region of slip in a 1-phase induction motor? 0 < S < 1 0 < S < 2 -2 < S < 2 -1 < S < 1 0 < S < 1 0 < S < 2 -2 < S < 2 -1 < S < 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following pairs is/are correct? All of these closed slot----- leakage flux is high open slot----- leakage flux is less semi closed slot-----leakage flux is moderate All of these closed slot----- leakage flux is high open slot----- leakage flux is less semi closed slot-----leakage flux is moderate 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 Ra maximum and Rf maximum Ra maximum and Rf minimum Rf maximum and Ra minimum Ra minimum and Rf minimum Ra maximum and Rf maximum Ra maximum and Rf minimum Rf maximum and Ra minimum Ra minimum and Rf minimum ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a DC motor at the time of starting is Normal. Very low. Very high. Zero. Normal. Very low. Very high. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The functions of inter poles are reduce cross magnetization effect and improve commutation both 1 and 2 None of these nullify reactance voltage and improve the commutation. reduce cross magnetization effect and improve commutation both 1 and 2 None of these nullify reactance voltage and improve the commutation. ANSWER DOWNLOAD EXAMIANS APP
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