Electrical Machines The leakage reactance of a 3-phase alternator is determined by performing zero power factor and slip tests. short circuit and slip tests. open circuit and zero power factor tests. open circuit and short circuit tests. zero power factor and slip tests. short circuit and slip tests. open circuit and zero power factor tests. open circuit and short circuit tests. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of bearing is provided in small induction motors to support the rotor shaft? Bush bearings. Ball bearings. Cast iron bearings. None of these Bush bearings. Ball bearings. Cast iron bearings. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the hysteresis loss. both of the above. weight of the stator. eddy current loss. hysteresis loss. both of the above. weight of the stator. eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 20 ppm. 25 ppm. 45 ppm. 35 ppm. 20 ppm. 25 ppm. 45 ppm. 35 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Motor dc series motor. dc shunt motor with field weakening. dc shunt with armature resistance control. dc compound motor. dc series motor. dc shunt motor with field weakening. dc shunt with armature resistance control. dc compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards direction of motion of the conductor. direction of flux. opposite to the direction of motion of the conductor. direction of induced emf. direction of motion of the conductor. direction of flux. opposite to the direction of motion of the conductor. direction of induced emf. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS