Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 460 V 65 V 230 V 115 V 460 V 65 V 230 V 115 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the advantages of parallel operation of alternators? Increase in reliability continuity supply is maintained All of these Increase efficiency under light load conditions Increase in reliability continuity supply is maintained All of these Increase efficiency under light load conditions ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a single phase capacitor start induction motor which of the following is valid? Rotation can be changed by reversing main winding terminals. None of these. Direction of rotation cannot be changed. Rotation can be changed by interchanging supply terminals. Rotation can be changed by reversing main winding terminals. None of these. Direction of rotation cannot be changed. Rotation can be changed by interchanging supply terminals. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine is a convection machine. conduction machine. both are correct. none of above are correct. convection machine. conduction machine. both are correct. none of above are correct. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulation method is accurate ? Synchronous impedance method ZPF method American standard association method MMf method Synchronous impedance method ZPF method American standard association method MMf method ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the frequency the power factor the level of the voltage the power level the frequency the power factor the level of the voltage the power level ANSWER DOWNLOAD EXAMIANS APP
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