Electrical Machines If dimension of all the parts of a synchorous generator and the number of field and armature turns are double, then generated voltage will change by a factor of 2. 4. 1. 8. 2. 4. 1. 8. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip speed is the difference of actual rotor speed and synchronous speed. half of the sum of synchronous and rotor speeds. difference of synchronous speed and actual rotor speed. sum of synchronous and rotor speeds. difference of actual rotor speed and synchronous speed. half of the sum of synchronous and rotor speeds. difference of synchronous speed and actual rotor speed. sum of synchronous and rotor speeds. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronising power of a synchronous motor varies All of these directly as Xs2 directly as synchronous reactances Xs inversely as 1/Xs All of these directly as Xs2 directly as synchronous reactances Xs inversely as 1/Xs ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reactive power generated or delivered significantly depends on load angle. excitation. both 1 and 2. frequency. load angle. excitation. both 1 and 2. frequency. 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 0.2 0.4 0.02 0.04 0.2 0.4 0.02 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If we increase the rotor reactance value, the maximum torque will not changed None of these decrease increase not changed None of these decrease increase ANSWER DOWNLOAD EXAMIANS APP
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