Electrical Machines Iron losses in a DC machine are independent of variation in speed. voltage. load. speed and voltage. speed. voltage. load. speed and voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronising power of a synchronous motor varies directly as synchronous reactances Xs All of these inversely as 1/Xs directly as Xs2 directly as synchronous reactances Xs All of these inversely as 1/Xs directly as Xs2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases then field flux increases. remains constant. decreases decreases. increases. remains constant. decreases decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Any of above. Armature resistance control. Armature voltage control. Shunt field resistance control. Any of above. Armature resistance control. Armature voltage control. Shunt field resistance control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as A capacitor. an inductor. A resistor. None of these. A capacitor. an inductor. A resistor. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following starter is sufficient to start the DC series motor ? 3 point starter All of these 2 point starter 4 point starter 3 point starter All of these 2 point starter 4 point starter ANSWER DOWNLOAD EXAMIANS APP
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