Electrical Machines The flux involved in the emf equation of a transformer has total value. average value. maximum value. rms value. total value. average value. maximum value. rms value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is lifts and hoists. paper mills. blowers. jaw crushers. lifts and hoists. paper mills. blowers. jaw crushers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machine is invariably provided with forced ventilation? Fractional horse power high speed motor. Fractional horse power slow speed motor. 50 MW generator in a power plant. Hermetically sealed motor of refrigerator. Fractional horse power high speed motor. Fractional horse power slow speed motor. 50 MW generator in a power plant. Hermetically sealed motor of refrigerator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in dc machine provide ----------------- rectification? half wave half wave controlled full wave full wave controlled half wave half wave controlled full wave full wave controlled ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A differentially compound motor under high-over-load conditions will behave like a / an series motor. AC synchronous motor. cummulative compound motor. shunt motor. series motor. AC synchronous motor. cummulative compound motor. shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer core is made up of a silicon steel laminations which has maximum flux density 1 Tesla. If it was cold rolled grain oriented its flux density increases to 1.6 Tesla. What is the saving in core size or area due to cold rolled grain oriented process? 68% 60% 38% 40% 68% 60% 38% 40% ANSWER DOWNLOAD EXAMIANS APP
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