Electrical Machines Armature reaction in dc motor results increase in speed. decrease in speed. short circuit. open circuit. increase in speed. decrease in speed. short circuit. open circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? magnitude of load current power factor of load None of these both 1 and 2 magnitude of load current power factor of load None of these both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature reaction mmf in a DC machines has a form of sinusoidal. triangular. rectangular. trapezoidal. sinusoidal. triangular. rectangular. trapezoidal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators brushes are used for reduce eddy current loss convert ac armature current in to dc collecting of current without any sparkings collecting of voltage reduce eddy current loss convert ac armature current in to dc collecting of current without any sparkings collecting of voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce reluctance of core. volume of iron. iron loss. volume of copper. reluctance of core. volume of iron. iron loss. volume of copper. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breather is provided in a transformer to absorb moisture of air during breathing. provide cold air in transformer. absorb moisture from air entering in transformer. filter the transformer oil. absorb moisture of air during breathing. provide cold air in transformer. absorb moisture from air entering in transformer. filter the transformer oil. ANSWER DOWNLOAD EXAMIANS APP
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