Electrical Machines Unbalance 3 - Φ stator currents cause All of these heating of rotor. vibrations. double frequency currents in the rotor. All of these heating of rotor. vibrations. double frequency currents in the rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing divertor resistance of a DC series motor Increase in speed but armature currnet remains the same. Decrease in speed demanding less armature current. Increase in speed demanding more armature current. Decrease in speed but armature current remains the same. Increase in speed but armature currnet remains the same. Decrease in speed demanding less armature current. Increase in speed demanding more armature current. Decrease in speed but armature current remains the same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is correct, if short circuit ratio is high? Good voltage regulation Low short circuit current High voltage regulation None of these Good voltage regulation Low short circuit current High voltage regulation None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are the starters used for starting of cage motors? DOL starter. All of these. Star-delta starter. Auto transformer starter. DOL starter. All of these. Star-delta starter. Auto transformer starter. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Methods of synchronizing of alternator may be done by all dark lamp method. all bright lamp method. all of these. one dark two bright. all dark lamp method. all bright lamp method. all of these. one dark two bright. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of higher flux density in the transformer design reduces the weigh per KVA has no relation with the weight of transformer increases the weigh per KVA None of these reduces the weigh per KVA has no relation with the weight of transformer increases the weigh per KVA None of these ANSWER DOWNLOAD EXAMIANS APP
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