Electrical Machines In a dc machine 72 number of coils are used. Find the number of commutator segments required? 36 74 37 72 36 74 37 72 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer has resistance and reactance in per unit as 0.01 and 0.04 respectively. Its voltage regulation for 0.8 power factor lagging and leading will be 4.8% and -3.2% None of these 3.2% and -1.6% 6% and -4% 4.8% and -3.2% None of these 3.2% and -1.6% 6% and -4% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stepper motor is used in traction computer printers food processing All of these traction computer printers food processing All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, full form of MNA is what? Magnetic no-load axis. Magnetically no-load armature co-ordinate. Magnetic neutral armature co-ordinate. Magnetic neutral axis. Magnetic no-load axis. Magnetically no-load armature co-ordinate. Magnetic neutral armature co-ordinate. Magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cogging of induction motor occurs at high voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are not equal. high voltage and when stator and rotor poles are not equal. high voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are equal. low voltage and when stator and rotor poles are not equal. high voltage and when stator and rotor poles are not equal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two 3-phase AC generators are such that one has twice the linear dimensions of the other. The field windings of each are excited to give identical sinusoidal air-gap flux density waveform. Both have the same number of stator slots and identical winding patterns. The conductor/slot in a big generator is K times that of the smaller one. The value of K to get equal no load voltage at same frequency is 1/2. 4. 1/4. 8. 1/2. 4. 1/4. 8. ANSWER DOWNLOAD EXAMIANS APP
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