Electrical Machines Which of the following motors is/are widely used? slip ring induction motor either of these squirrel cage induction motor None of these slip ring induction motor either of these squirrel cage induction motor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the mechanical angle α between the stator and rotor poles increases, then the stator current Increases. None of above. Decreases. Remains unchanged. Increases. None of above. Decreases. Remains unchanged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The material used for commutator brushes is mostly carbon. copper. mica. cast iron. carbon. copper. mica. cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine the armature mmf is stationary with respect to armature. rotating with respect to field poles. rotating with respect to field poles as well as armature. stationary with respect to field poles. stationary with respect to armature. rotating with respect to field poles. rotating with respect to field poles as well as armature. stationary with respect to field poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Doubled. Remains same. Four times. Eight times. Doubled. Remains same. Four times. Eight times. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of tappings for each equalizer ring is equal to number of pole pairs. number of parallel paths. number of poles. number of commutator segments. number of pole pairs. number of parallel paths. number of poles. number of commutator segments. ANSWER DOWNLOAD EXAMIANS APP
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