Electrical Machines DC machine windings are short pitched full pitched either of these None of these short pitched full pitched either of these None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating windings are used in DC generators None of these mainly to reduce the eddy currents by providing local short circuit. to provide path for the circulation of cooling air. to neutralize the cross magnetizing effect of the armature reaction. None of these mainly to reduce the eddy currents by providing local short circuit. to provide path for the circulation of cooling air. to neutralize the cross magnetizing effect of the armature reaction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? +3% -3.33% -3% +3.33% +3% -3.33% -3% +3.33% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are rating of generators should be same. polarities should be same. terminal voltage should be same. both A and B. rating of generators should be same. polarities should be same. terminal voltage should be same. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio 33.3% 57.7% 50% 66.3% 33.3% 57.7% 50% 66.3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is the largest conversion device? Induction machine All of these Synchronous machine DC machine Induction machine All of these Synchronous machine DC machine ANSWER DOWNLOAD EXAMIANS APP
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