Electrical Machines Eg (generated emf) and Eb (back emf) both are none of above. same. changes. different. none of above. same. changes. different. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to reduce the harmonics. start the motor. improve the starting torque. improve the power factor. reduce the harmonics. start the motor. improve the starting torque. improve the power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The result of slip test on a 3-phase, 20 KVA, 400 V, 50 Hz connected salient pole alternator is given below- Phase value: Vmax = 100 V, Vmin = 96 V, Imax = 10 A and I min = 7 A. The direct and quadranature axis reactances are respectively 14.28 and 5.54 Ω. 8.248 and 9.60 Ω. 14.28 and 9.60 Ω. 8.248 and 5.54 Ω. 14.28 and 5.54 Ω. 8.248 and 9.60 Ω. 14.28 and 9.60 Ω. 8.248 and 5.54 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 1 KVA, 230 V, 50 Hz, single phase transformer has an eddy current loss of 30 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be less than 30 W zero watt 30 W more than 30 W less than 30 W zero watt 30 W more than 30 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A load of 900 lbs is to be raised with a lift car weighting 855 lbs at a speed of 110 feet per minute, the over balance being 40 % and percentage efficiency 45 %. Find the horse power of the motor without counterweight 170. 180. 150. 160. 170. 180. 150. 160. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant torque control constant current control constant power control constant voltage control constant torque control constant current control constant power control constant voltage control ANSWER DOWNLOAD EXAMIANS APP
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