Electrical Machines Compensating windings are used in DC generators to provide path for the circulation of cooling air. to neutralize the cross magnetizing effect of the armature reaction. mainly to reduce the eddy currents by providing local short circuit. None of these to provide path for the circulation of cooling air. to neutralize the cross magnetizing effect of the armature reaction. mainly to reduce the eddy currents by providing local short circuit. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At what power factor, the voltage regulation of a transformer can be zero ? Unity power factor. Leading power factor. Lagging power factor. Zero power factor. Unity power factor. Leading power factor. Lagging power factor. Zero power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC compound motor the field regulator is provided to control the armature flux. demagnetize the field partially. control the field flux. limit the armature current. control the armature flux. demagnetize the field partially. control the field flux. limit the armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines _____________ types of induction motor are widely used. Three phase IM. Slip ring IM. Squirrel cage IM. Single phase IM. Three phase IM. Slip ring IM. Squirrel cage IM. Single phase IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the advantages of parallel operation of alternators? Increase efficiency under light load conditions All of these Increase in reliability continuity supply is maintained Increase efficiency under light load conditions All of these Increase in reliability continuity supply is maintained ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is employed to brake None of these both 1 and 2 non reversing drive reversing drive None of these both 1 and 2 non reversing drive reversing drive ANSWER DOWNLOAD EXAMIANS APP
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