Electrical Machines Commutator in DC generator is used for convert AC armature current in to DC increase efficiency collecting of current reduce losses convert AC armature current in to DC increase efficiency collecting of current reduce losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor during DC rheostatic braking is 2 - s. s. 2 + s. 1 - s. 2 - s. s. 2 + s. 1 - s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following rotor requires damper winding? Salient pole rotor. Both type rotor. None of these Cylindrical rotor. Salient pole rotor. Both type rotor. None of these Cylindrical rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. less than the width of commutator segment. the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. less than the width of commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction of rotation, the machine operating is asynchronous motor. synchronous motor. synchronous generator. asynchronous generator. asynchronous motor. synchronous motor. synchronous generator. asynchronous generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Use of fractional pitch winding All of these results in reduced leakage reactance. make it stiffer. results in reduced axial length of the machine. All of these results in reduced leakage reactance. make it stiffer. results in reduced axial length of the machine. ANSWER DOWNLOAD EXAMIANS APP
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