Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? -3.33% +3% +3.33% -3% -3.33% +3% +3.33% -3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a single phase capacitor start induction motor which of the following is valid? Rotation can be changed by interchanging supply terminals. Rotation can be changed by reversing main winding terminals. None of these. Direction of rotation cannot be changed. Rotation can be changed by interchanging supply terminals. Rotation can be changed by reversing main winding terminals. None of these. Direction of rotation cannot be changed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on temperature difference. air velocity. color of the paint. surface area. temperature difference. air velocity. color of the paint. surface area. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The core flux in transformer depends mainly on supply voltage, frequency and load supply voltage and frequency supply voltage supply voltage and load supply voltage, frequency and load supply voltage and frequency supply voltage supply voltage and load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series booster is a separately excited DC generator. series wound DC generator. shunt wound DC generator. permanent magnet DC generator. separately excited DC generator. series wound DC generator. shunt wound DC generator. permanent magnet DC generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/V ratio of a DC motor is an indication of Starting torque. Running Torque. Effiency. Speed regulation. Starting torque. Running Torque. Effiency. Speed regulation. ANSWER DOWNLOAD EXAMIANS APP
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