Electrical Machines The torque speed characteristics of a AC servomotor is approximately any of the above hyperbola parabola linearised any of the above hyperbola parabola linearised ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction of an unsaturated DC machine is demagnetising. crossmagnetising. none of above. magnetising. demagnetising. crossmagnetising. none of above. magnetising. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous motor can be started by coupling it with a small AC induction motor called the pony motor. coupling it with a DC compound motor. any of the above methods. providing damper winding in its rotor circuit. coupling it with a small AC induction motor called the pony motor. coupling it with a DC compound motor. any of the above methods. providing damper winding in its rotor circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 21% 10% 11% 41% 21% 10% 11% 41% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Motor dc shunt with armature resistance control. dc shunt motor with field weakening. dc series motor. dc compound motor. dc shunt with armature resistance control. dc shunt motor with field weakening. dc series motor. dc compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which DC motor will have least percentage increase of input current, for the same percentage increase in the torque DC Shunt Motor Separately Excited DC Motor Compound Wound DC Motor DC Series Motor DC Shunt Motor Separately Excited DC Motor Compound Wound DC Motor DC Series Motor ANSWER DOWNLOAD EXAMIANS APP
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