Electrical Machines A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle? 60° 30° 10° 45° 60° 30° 10° 45° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? pure inductive load None of these pure resistive load pure capacitive load pure inductive load None of these pure resistive load pure capacitive load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is done in speed control of DC motor by field flux control? Inserting resistance to armature circuit and field circuit. Inserting an additional resistance in the field circuit. Any of above. Inserting an additional resistance in the armature circuit. Inserting resistance to armature circuit and field circuit. Inserting an additional resistance in the field circuit. Any of above. Inserting an additional resistance in the armature circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Brush. Yoke. Commutator. Armature. Brush. Yoke. Commutator. Armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to two. unity. zero. infinity. two. unity. zero. infinity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will run much faster in the same direction. The motor will stop. The direction of rotation will reverse. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The motor will stop. The direction of rotation will reverse. The motor will run at its normal speed in the same direction as before. ANSWER DOWNLOAD EXAMIANS APP
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