Electrical Machines In DC machine torque is proportional to which of the following? armature current(Ia) both A and B flux(φ) None of these armature current(Ia) both A and B flux(φ) None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starter is not used with large DC motor for starting, it will all of above. provide execessive voltage drop in line. damage the armature and commutator. draw a starting current many times its rated full load current. all of above. provide execessive voltage drop in line. damage the armature and commutator. draw a starting current many times its rated full load current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following motors DC excitation is not required? reluctance motor 3-phase synchronous generator hysteresis motor 3-phase synchronous motor reluctance motor 3-phase synchronous generator hysteresis motor 3-phase synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 0.7. 0.3. 1. 0.54. 0.7. 0.3. 1. 0.54. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, if direct axis reactance and quadrature axis reactance is equal, then power developed due to reluctance is infinite value maximum zero any of the above infinite value maximum zero any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has low ratings only? Capacitor start Shaded pole Resistance split phase Capacitor run Capacitor start Shaded pole Resistance split phase Capacitor run ANSWER DOWNLOAD EXAMIANS APP
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