Electrical Machines In DC machines shape of net flux density is? peaky in nature saddle shape flat tapped or trapezoidal sine wave peaky in nature saddle shape flat tapped or trapezoidal sine wave ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is done in speed control of DC motor by field flux control? Inserting an additional resistance in the field circuit. Inserting an additional resistance in the armature circuit. Inserting resistance to armature circuit and field circuit. Any of above. Inserting an additional resistance in the field circuit. Inserting an additional resistance in the armature circuit. Inserting resistance to armature circuit and field circuit. Any of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer the magnetic coupling between the primary and secondary winding can be increased by increasing the number of turns. using transformer oil of better quality. using soft material for winding. using the magnetic core of low reluctance. increasing the number of turns. using transformer oil of better quality. using soft material for winding. using the magnetic core of low reluctance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of operation of a 3 - Φ induction motor is almost similar to that of capacitor start induction motor. synchronous motor. repulsion start induction motor. transformer with secondary short circuited. capacitor start induction motor. synchronous motor. repulsion start induction motor. transformer with secondary short circuited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct statements? EMF per turn in HV winding is more than EMF per turn in LV winding All of these EMF per turn in both the windings are equal EMF per turn in HV winding is less than EMF per turn in LV winding EMF per turn in HV winding is more than EMF per turn in LV winding All of these EMF per turn in both the windings are equal EMF per turn in HV winding is less than EMF per turn in LV winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which single phase motor is used for a refrigerator? Split phase. Universal. Repulsion. Capacitor run. Split phase. Universal. Repulsion. Capacitor run. ANSWER DOWNLOAD EXAMIANS APP
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