DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. Twice Half One-third None of the listed here Twice Half One-third None of the listed here 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 Regenerative Dynamic braking None of these Plugging Regenerative Dynamic braking None of these Plugging ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor can be easily identified by Commutator Yoke Size of conductor Winding Commutator Yoke Size of conductor Winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors The friction and windage losses in a dc motor depends upon Armature current Field and armature resistance Flux Speed Armature current Field and armature resistance Flux Speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The shaft torque in a dc motor is less than total armature torque because of ______ in the motor. None of the listed here Field losses Iron and friction losses Cu losses None of the listed here Field losses Iron and friction losses Cu losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Slip rings Commutator Armature winding Field winding Slip rings Commutator Armature winding Field winding ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS