Electrical Machines In dc motors, under leading pole tips flux density will--------? None of these increase decrease either increase or decrease None of these increase decrease either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase rotor resistance supply voltage None of these supply frequency rotor resistance supply voltage None of these supply frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct-on-line (DOL) starters are not suitable for starting large DC motors, because the starting current will be enormously high. the motor may run away. the motor may not start. the starting torque becomes low. the starting current will be enormously high. the motor may run away. the motor may not start. the starting torque becomes low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, lap winding is used in high voltage and low current applications. high current and low voltage applications. where greater load is connected. where constant speed is required. high voltage and low current applications. high current and low voltage applications. where greater load is connected. where constant speed is required. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor power output of 3-phase induction motor is 15 KW. The rotor copper losses at a slip of 4% will be 625 W 650 W 700 W 600 W 625 W 650 W 700 W 600 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are terminal voltage should be same. both A and B. polarities should be same. rating of generators should be same. terminal voltage should be same. both A and B. polarities should be same. rating of generators should be same. ANSWER DOWNLOAD EXAMIANS APP
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