DC Motors The friction and windage losses in a dc motor depends upon Speed Armature current Field and armature resistance Flux Speed Armature current Field and armature resistance Flux ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor can be easily identified by Size of conductor Yoke Commutator Winding Size of conductor Yoke Commutator Winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors Differentially compound D.C. motors can find applications requiring Low starting torque Frequent on-off cycles Variable speed High starting torque Low starting torque Frequent on-off cycles Variable speed High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. Twice One-third Half None of the listed here Twice One-third Half None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc shunt motors are used for driving Trains Machine tools Cranes Hoist Trains Machine tools Cranes Hoist ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive sparking at brushes may be caused due to Dirt on the commutator Loose coupling Misaligment of machine Worn bearings Dirt on the commutator Loose coupling Misaligment of machine Worn bearings ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS