Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 0.7. 0.54. 1. 0.3. 0.7. 0.54. 1. 0.3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The wound rotor type IM is used for____________ speed operation. variable. maximum. constant. minimum. variable. maximum. constant. minimum. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In field flux method speed control of DC Motor is constant torque drive above the base speed. constant power drive above base speed. constant hp drive below the base speed. constant torque drive below the base speed. constant torque drive above the base speed. constant power drive above base speed. constant hp drive below the base speed. constant torque drive below the base speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC mototr are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor? 16.67%. 15.30%. 18.25%. 14.28%. 16.67%. 15.30%. 18.25%. 14.28%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Satisfactory commutation of DC machine requires brushes should be of proper grade and size. brushes should smoothly run in the holders. smooth, concentric commutator properly undercut. All of these brushes should be of proper grade and size. brushes should smoothly run in the holders. smooth, concentric commutator properly undercut. All of these 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 6% and -4% 4.8% and -3.2% 3.2% and -1.6% None of these 6% and -4% 4.8% and -3.2% 3.2% and -1.6% None of these ANSWER DOWNLOAD EXAMIANS APP
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