Electrical Machines Commutator in DC generator is used for increase efficiency reduce losses collecting of current convert AC armature current in to DC increase efficiency reduce losses collecting of current convert AC armature current in to DC ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will remain constant. any of the above. increase. decrease. remain constant. any of the above. increase. decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant power. current. torque. speed. power. current. torque. speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slot wedges in a dc machine is made up of fibre. silicon steel. cast iron. mild steel. fibre. silicon steel. cast iron. mild steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines There are two 2-pole DC machines. Main field axis of machine A is horizontal and that of B is vertical. It is preferable to purchase machine B none of these any of the two machines machine A machine B none of these any of the two machines machine A ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor electromagnetic power varies inversely as applied voltage None of these directly as applied voltage directly as square of applied voltage inversely as applied voltage None of these directly as applied voltage directly as square of applied voltage ANSWER DOWNLOAD EXAMIANS APP
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