Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. rheostatic control. any of above method. Ward Leonard control. none of above. rheostatic control. any of above method. Ward Leonard control. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation of the synchronous generator fails, it acts as a/an induction motor. synchronous generator. synchronous motor. induction generator. induction motor. synchronous generator. synchronous motor. induction generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : For a level compounded dc generator to run at constant voltage, the series field mmf must effectively compensate 1. armature reaction mmf 2.armature resistance drop 3. brush contact voltage drop Which of these statements is/are correct ? 1 and 3 1 and 2 2 alone 1, 2 and 3 1 and 3 1 and 2 2 alone 1, 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Quadrature axis synchronous reactance is the ratio of Vmax to Imin. Vmin to Imax. Vmax to Imax. Vmin to Imin. Vmax to Imin. Vmin to Imax. Vmax to Imax. Vmin to Imin. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following are variable losses? shunt field copper loss hysteresis loss eddy current loss armature copper loss shunt field copper loss hysteresis loss eddy current loss armature copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the temperature of armature resistance is increased, the speed of a series motor would increase. decrease. not change. None of above. increase. decrease. not change. None of above. ANSWER DOWNLOAD EXAMIANS APP
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