Electrical Machines What will be the maximum power factor of an induction motor for dispersion coefficient of 0.05? 0.05. 1.1. 20. 0.905. 0.05. 1.1. 20. 0.905. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in a sub – station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub – station will be, 3. 12. 4. 7. 3. 12. 4. 7. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3- phase synchronous motor can operate over a wide range of power factors i.e. from lagging to leading power factor. This is achieved by varying the applied voltage. varying the speed. changing the load. changing the field excitation. varying the applied voltage. varying the speed. changing the load. changing the field excitation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 41% 10% 11% 21% 41% 10% 11% 21% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.04 0.4 0.02 0.2 0.04 0.4 0.02 0.2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Use of fractional pitch winding make it stiffer. All of these results in reduced leakage reactance. results in reduced axial length of the machine. make it stiffer. All of these results in reduced leakage reactance. results in reduced axial length of the machine. ANSWER DOWNLOAD EXAMIANS APP
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