Electrical Machines Armature of DC machine is made of insulating material. non-ferrous material. silicon steel. conducting material. insulating material. non-ferrous material. silicon steel. conducting material. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dummy coils are used for reducing armature reaction. All of these mechanical balancing. increasing efficiency. reducing armature reaction. All of these mechanical balancing. increasing efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - φ induction motor running at full load which of these parameters is stationary with respect to the stator mmf wave? Rotor mmf wave. Both rotor and stator winding. Stator winding. Rotor winding. Rotor mmf wave. Both rotor and stator winding. Stator winding. Rotor winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer operating at constant voltage if the input frequency increases, the core loss increase. decrease. None of these remains constant. increase. decrease. None of these remains constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which DC motor will have least percentage increase of input current, for the same percentage increase in the torque Separately Excited DC Motor DC Shunt Motor Compound Wound DC Motor DC Series Motor Separately Excited DC Motor DC Shunt Motor Compound Wound DC Motor DC Series Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a conductively compensated DC series motor, the compensating winding is provided In parallel with the field winding. In series with the armature winding. As a separate unit. In parallel with the armature winding. In parallel with the field winding. In series with the armature winding. As a separate unit. In parallel with the armature winding. ANSWER DOWNLOAD EXAMIANS APP
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