Electrical Machines In a 12 pole triplex lap wound DC armature, each conductor can carry current of 100 A. The rated current of this armature is 600 A. 2400 A. 3600 A. 1200 A. 600 A. 2400 A. 3600 A. 1200 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to 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. reduce the harmonics. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum flux density is constant, the eddy current losses are proportional to V2 f f2 V V2 f f2 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the ripples in the direct emf generated are reduced by employing carbon brushes. equalizer rings. graphite brushes. commutator with large number of segments. carbon brushes. equalizer rings. graphite brushes. commutator with large number of segments. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In V/f speed control of 3-phase induction motor, with increase in frequency, the slip at which maximum torque occurs None of these decrease. increase. either of these. None of these decrease. increase. either of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Mechanical energy is supplied to DC generator at the rate of 4200 J / s. The generator delivers 32.2 Amp at 120 V. What is the percentage efficiency of the generator? 210 V. 201.02 V. 212 V. 205 V. 210 V. 201.02 V. 212 V. 205 V. ANSWER DOWNLOAD EXAMIANS APP
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