Electrical Machines The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence? RBY BRY BYR All of these RBY BRY BYR All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous motor is supplying a load at unity power factor. If the load on the motor is increased keeping its excitation and terminal voltage constant, the power factor will become lagging will remain the same will become leading None of these will become lagging will remain the same will become leading None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a seperately excited DC Motor if field current is increased, it will Reduce armature heating. Reduce starting torque. Increase acceleration duration. Increase speed Reduce armature heating. Reduce starting torque. Increase acceleration duration. Increase speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The coil spam none of above. can never be equal to pole pitch. must be exactly equal to people pitch. may or may not be exactly equal to people pitch. none of above. can never be equal to pole pitch. must be exactly equal to people pitch. may or may not be exactly equal to people pitch. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load primary current in a transformer leads the applied voltage somewhat less than 90Ã& lags behind applied voltage somewhat less than 90à lags behind applied voltage by exactly 90Â&am leads the applied voltage by exactly 90Â& leads the applied voltage somewhat less than 90Ã& lags behind applied voltage somewhat less than 90à lags behind applied voltage by exactly 90Â&am leads the applied voltage by exactly 90Â& ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is correct, if short circuit ratio is high? High voltage regulation Low short circuit current Good voltage regulation None of these High voltage regulation Low short circuit current Good voltage regulation None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS