Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor increases. decreases. remains same. None of these increases. decreases. remains same. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.02 0.2 0.4 0.04 0.02 0.2 0.4 0.04 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding are used to rectify the flux density waveform at throughout the air gap. region under main pole. interpole region. None of these throughout the air gap. region under main pole. interpole region. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, alternator has generated emf per phase of 230 V with 10% 3rd harmonic and 6% 5th harmonic content. Calculate rms line voltage for star connection. 100 V. 399 V. 50 V. 230.2 V. 100 V. 399 V. 50 V. 230.2 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. increases remains unaffected decreases any of the above increases remains unaffected decreases any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? MMf method. All of these ZPF method. Synchronous impedance method. MMf method. All of these ZPF method. Synchronous impedance method. ANSWER DOWNLOAD EXAMIANS APP
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