Electrical Machines In which transformer, the tertiary winding is used? Delta - delta Star - star Star - delta Delta - star Delta - delta Star - star Star - delta Delta - star ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motors, there is large decrease in maximum power factor when the dispersion coefficient is ________________. kept constant to certain value. increased. remains same. decreased. kept constant to certain value. increased. remains same. decreased. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Circle about the origin. Straight line through the origin. Rectangular hyperbola Straight line parallel to the speed axis. Circle about the origin. Straight line through the origin. Rectangular hyperbola Straight line parallel to the speed axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of single phase induction motor is having the highest power factor at full load ? Shaded pole type. Capacitor start. Capacitor run type. Split phase type. Shaded pole type. Capacitor start. Capacitor run type. Split phase type. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines As compared to an induction motor, the air gap in a DC motor is less than 50%. between 50% and 90%. more. same. less than 50%. between 50% and 90%. more. same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 55 kVA single phase alternator has an effective resistance of 0.5 Ω. An excitation current of 10 A produces 200 A armature current on short circuit and an emf of 450 V on per circuit. The synchronous reactance will be 2.781 Ω. 2.241 Ω. 2.74 Ω. 25.564 Ω. 2.781 Ω. 2.241 Ω. 2.74 Ω. 25.564 Ω. ANSWER DOWNLOAD EXAMIANS APP
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