Electrical Machines With the increases in field excitation of a DC generator, its generated emf increases upto a limit and then remains almost constant. decreases. increases. remains constant. increases upto a limit and then remains almost constant. decreases. increases. remains constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Secondary winding of an auto transformer is also called tertiary winding. common winding. damping winding. compensating winding. tertiary winding. common winding. damping winding. compensating winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lap winding is prefered for which type of machines? low current and high voltage high current and high voltage high current and low voltage low current and low voltage low current and high voltage high current and high voltage high current and low voltage low current and low voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ slip ring motor has any of the above. short-circuited rotor. double cage rotor. wound rotor. any of the above. short-circuited rotor. double cage rotor. wound rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two identical loss less series motors connected in series across a dc supply voltage, runs at speed of N1 and N2, then ratio of their output power is 1 : 1. N12 : N22. N1 : N2. none. 1 : 1. N12 : N22. N1 : N2. none. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction of an unsaturated DC machine is none of above. crossmagnetising. demagnetising. magnetising. none of above. crossmagnetising. demagnetising. magnetising. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS