DC Motors When the armature of a D.C. motor rotates, e.m.f. induced is Back e.m.f. None of these Mutually induced e.m.f. Self-induced e.m.f. Back e.m.f. None of these Mutually induced e.m.f. Self-induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Copper losses Windage losses Eddy current losses Hysteresis losses Copper losses Windage losses Eddy current losses Hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To reduce the sparking To improve cooling To reduce the generated emf To increase the generated emf To reduce the sparking To improve cooling To reduce the generated emf To increase the generated emf ANSWER DOWNLOAD EXAMIANS APP
DC Motors A three point starter is considered suitable for Shunt motors All D.C. motors Shunt as well as compound motors Shunt, compound and series motors Shunt motors All D.C. motors Shunt as well as compound motors Shunt, compound and series motors ANSWER DOWNLOAD EXAMIANS APP
DC Motors In the dc motor the iron losses occur in Armature Field Brushes Commutator Armature Field Brushes Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors A direct on line starter is used for starting motors Upto 15 HP Upto 10 HP Upto 5 HP Upto 20 HP Upto 15 HP Upto 10 HP Upto 5 HP Upto 20 HP ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS