Electrical Machines Dynamic braking is employed to brake non reversing drive both 1 and 2 None of these reversing drive non reversing drive both 1 and 2 None of these reversing drive ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breather is provided in a transformer to filter the transformer oil. absorb moisture from air entering in transformer. provide cold air in transformer. absorb moisture of air during breathing. filter the transformer oil. absorb moisture from air entering in transformer. provide cold air in transformer. absorb moisture of air during breathing. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator? Can not be determined. Mechanical power. Induced emf. Armature current. Can not be determined. Mechanical power. Induced emf. Armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of rotating magnetic field of 8 pole 50 Hz induction motor is 3000 rpm 750 rpm 1000 rpm 1500 rpm 3000 rpm 750 rpm 1000 rpm 1500 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will decrease. increase. any of the above. remain constant. decrease. increase. any of the above. remain constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two transformers with identical rating, are designed with flux densities of 1.2 and 1.4 Wb / m2 respectively. The weight of first transformer per kVA is equal to that of second transformer. more than that of second transformer. none of these. less than that of second transformer. equal to that of second transformer. more than that of second transformer. none of these. less than that of second transformer. ANSWER DOWNLOAD EXAMIANS APP
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