Electrical Machines Hysteresis loss is proportional to f3. f1.5. f. f2. f3. f1.5. f. f2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The efficiency of a transformer is mainly dependent on core losses. stray losses. copper losses. dielectric losses. core losses. stray losses. copper losses. dielectric losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer operating at constant voltage if the input frequency increases, the core loss remains constant. decrease. increase. None of these remains constant. decrease. increase. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed depends on voltage load angle both 1and 2 reactance voltage load angle both 1and 2 reactance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motors, there is large decrease in maximum power factor when the dispersion coefficient is ________________. increased. decreased. remains same. kept constant to certain value. increased. decreased. remains same. kept constant to certain value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control is provides speed control Below rated speed. In one direction only. In both direction. Above rated speed. Below rated speed. In one direction only. In both direction. Above rated speed. ANSWER DOWNLOAD EXAMIANS APP