Electrical Machines A DC generator without commutator is a DC motor DC generator induction motor AC generator DC motor DC generator induction motor AC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct ? Compensating winding will act under the pole. Both A and B. Inter pole winding will act in interpolar region. None of these Compensating winding will act under the pole. Both A and B. Inter pole winding will act in interpolar region. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC generator will not build up voltage any one of above. due to wrong direction of rotation. if field resistance is more than critical resistance. if it has lost residual magnetism. any one of above. due to wrong direction of rotation. if field resistance is more than critical resistance. if it has lost residual magnetism. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The overall power factor of an on load transformer is always lagging. is always leading. depends on the power factor of the load. is always unity. is always lagging. is always leading. depends on the power factor of the load. is always unity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? no load half load any of the above full load no load half load any of the above full load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately-excited DC generator, running at rated speed, has 6 volts across its armature terminals with no field current. When field winding is excited with one ampere, the voltage builds up to 250 V at no load. In case field current is reduced to zero, with the speed remaining unaltered, the armature terminal voltage would be less than 6 V more than 6 V zero 6 V less than 6 V more than 6 V zero 6 V ANSWER DOWNLOAD EXAMIANS APP
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