Electrical Machines Quadrature axis synchronous reactance is the ratio of Vmin to Imin. Vmax to Imax. Vmax to Imin. Vmin to Imax. Vmin to Imin. Vmax to Imax. Vmax to Imin. Vmin to Imax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the effect of armature reaction ? Both option B and C. Armature flux weakens the main field flux. Armature flux distorts the main field flux. None of the options. Both option B and C. Armature flux weakens the main field flux. Armature flux distorts the main field flux. None of the options. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors uses slip rings? Induction motors Both Synchronous and Induction motor DC Shunt Motor Synchronous motors Induction motors Both Synchronous and Induction motor DC Shunt Motor Synchronous motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starter is not used with large DC motor for starting, it will damage the armature and commutator. draw a starting current many times its rated full load current. provide execessive voltage drop in line. all of above. damage the armature and commutator. draw a starting current many times its rated full load current. provide execessive voltage drop in line. all of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The interpoles in dc machines have a tapering shape in order to reduce the overall weight economise on the material required for interpoles and their windings increase the acceleration of commutation reduce the saturation in the interpole reduce the overall weight economise on the material required for interpoles and their windings increase the acceleration of commutation reduce the saturation in the interpole ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of tappings for each equalizer ring is equal to number of commutator segments. number of pole pairs. number of poles. number of parallel paths. number of commutator segments. number of pole pairs. number of poles. number of parallel paths. ANSWER DOWNLOAD EXAMIANS APP
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