DC Motors ______ motor has the best speed regulation. Differentially compounded Shunt Series Cummulative compounded Differentially compounded Shunt Series Cummulative compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Plugging Dynamic braking Regenerative None of these Plugging Dynamic braking Regenerative None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors In the dc motor the iron losses occur in Armature Brushes Commutator Field Armature Brushes Commutator Field ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating winding is basically used in a dc machine To control the speed of machine To reduce armature reaction To improve commutation None of the listed here To control the speed of machine To reduce armature reaction To improve commutation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following losses are significantly reduced by laminating the core of a D.C. generator? Windage losses Copper losses Hysteresis losses Eddy current losses Windage losses Copper losses Hysteresis losses Eddy current losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven Runs as a generator Also runs as a motor comes to stop after sometime None of these Does not run as a generator Runs as a generator Also runs as a motor comes to stop after sometime None of these Does not run as a generator ANSWER DOWNLOAD EXAMIANS APP