Electrical Machines If any two leads from slip rings are interchanged in a 3 - Φ induction motor, the motor will get damaged. run in a direction opposite to previous one. continue running in the same direction as before. not run. get damaged. run in a direction opposite to previous one. continue running in the same direction as before. not run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The interpoles in dc machines have a tapering shape in order to economise on the material required for interpoles and their windings reduce the saturation in the interpole increase the acceleration of commutation reduce the overall weight economise on the material required for interpoles and their windings reduce the saturation in the interpole increase the acceleration of commutation reduce the overall weight ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following generators are used in arc welding? cumulative compound generators series generators differential compound generators shunt generators cumulative compound generators series generators differential compound generators shunt generators ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motor have which of the following application? Food mixer. Lift. Traction. Domestic pump. Food mixer. Lift. Traction. Domestic pump. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field divertor method of speed control of a DC series motor gives speed above rated one due to reduction of Line current. Field current. None of above. Armature current. Line current. Field current. None of above. Armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : For a level compounded dc generator to run at constant voltage, the series field mmf must effectively compensate 1. armature reaction mmf 2.armature resistance drop 3. brush contact voltage drop Which of these statements is/are correct ? 2 alone 1, 2 and 3 1 and 3 1 and 2 2 alone 1, 2 and 3 1 and 3 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
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