Electrical Machines In travelling cranes for crane travel, trolley and boom hoist which motor is preferred? Slip ring induction motor. DC differential compound motor. Stepper motor. Synchronous motor. Slip ring induction motor. DC differential compound motor. Stepper motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf increases upto a limit and then remains almost constant. remains constant. increases. decreases. increases upto a limit and then remains almost constant. remains constant. increases. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Copper loss. Hysteresis loss. Eddy current loss. Stray loss. Copper loss. Hysteresis loss. Eddy current loss. Stray loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: pole core. under the interpole. under leading pole tip. under trailing pole tip. pole core. under the interpole. under leading pole tip. under trailing pole tip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound 4 pole dc motor has 460 conductors. Find the number of parallel paths between the conductors? 2. data provided is insufficient. 4. 6. 2. data provided is insufficient. 4. 6. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at any of the above. unity power factor. leading power factor. lagging power factor. any of the above. unity power factor. leading power factor. lagging power factor. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS