Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as f V² V f² f V² V f² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Larger values of air flux density is taken while designing IM for both. none. larger bore diameter. larger output. both. none. larger bore diameter. larger output. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC shunt generator working on load, the brushes are moved forward in the direction of rotation, as a result of this, commutation will improve and terminal voltage will rise . worsen and terminal voltage will fall worsen and terminal voltage will rise. improve but terminal voltage will fall. improve and terminal voltage will rise . worsen and terminal voltage will fall worsen and terminal voltage will rise. improve but terminal voltage will fall. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Alternator operates on the principle of mutual induction. electromagnetic induction. self or mutual induction. self induction. mutual induction. electromagnetic induction. self or mutual induction. self induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The oscillation in a synchronous motor can be damped out by oscillation cannot be damped. providing damper bars in the rotor pole faces. maintaining constant excitation. running the motor on leading power factors. oscillation cannot be damped. providing damper bars in the rotor pole faces. maintaining constant excitation. running the motor on leading power factors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a necessary condition to be satisfied for synchronising an incoming alternator to an already operating alternator? same prime mover speed same voltage magnitude same frequency same phase sequence same prime mover speed same voltage magnitude same frequency same phase sequence ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS