Electrical Machines Eb/V ratio of a DC motor is an indication of Starting torque. Speed regulation. Running Torque. Effiency. Starting torque. Speed regulation. Running Torque. Effiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In auto transformer if the turn ratio is K, what is the power transferred inductively? None of these K × input power both A and B (1-K) × input power None of these K × input power both A and B (1-K) × input power ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If direct axis reactance Xd and quadrature axis reactance Xq are equal, then reluctance power is minimum maximum All of these zero minimum maximum All of these zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor when the length of the air gap is increased, the magnetizing current of the motor increases while the short circuit current __________________. remains unchanged. kept constant to certain value. decreased. increased. remains unchanged. kept constant to certain value. decreased. increased. 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 150. 160. 180. 170. 150. 160. 180. 170. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? Armature current. Field flux. All of these. Applied voltage. Armature current. Field flux. All of these. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
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