Electrical Machines If we increase the rotor reactance value, the maximum torque will None of these increase decrease not changed None of these increase decrease not changed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The constant losses in transformer is/are eddy current loss. copper loss. hysteresis loss. both 2 and 3. eddy current loss. copper loss. hysteresis loss. both 2 and 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an induction machine is run at above the synchronous speed it acts as an induction motor a synchronous motor an induction generator None of these an induction motor a synchronous motor an induction generator None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the power level the power factor the frequency the level of the voltage the power level the power factor the frequency the level of the voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field system has to be provided on stator unlike synchronous machines Where in it could be on any member, because it gives more uniform air-gap flux distribution dc machines are comparatively low rating machines. commutator action is not possible otherwise it reduces field structure iron losses it gives more uniform air-gap flux distribution dc machines are comparatively low rating machines. commutator action is not possible otherwise it reduces field structure iron losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct-on-line (DOL) starters are not suitable for starting large DC motors, because the starting current will be enormously high. the motor may run away. the motor may not start. the starting torque becomes low. the starting current will be enormously high. the motor may run away. the motor may not start. the starting torque becomes low. ANSWER DOWNLOAD EXAMIANS APP
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