DC Motors The dirction of rotation of a dc series motor can be changed by Either of Interchanging field or Interchanging supply Interchanging supply terminals Interchanging field terminals None of the listed here Either of Interchanging field or Interchanging supply Interchanging supply terminals Interchanging field terminals None of the listed here 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 Iron and friction losses Field losses Cu losses None of the listed here Iron and friction losses Field losses Cu losses 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. One-third Twice None of the listed here Half One-third Twice None of the listed here Half ANSWER DOWNLOAD EXAMIANS APP
DC Motors The armature torque of the D.C. shunt motor is proportional to armature current only field flux only None of these both (A) and (B) armature current only field flux only None of these both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
DC Motors A compensating winding is an auxiliary winding embedded in slots in The armature None of the listed here Partly in pole faces, partly in armature The pole faces of main poles The armature None of the listed here Partly in pole faces, partly in armature The pole faces of main poles ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Commutator Armature winding Field winding Slip rings Commutator Armature winding Field winding Slip rings ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS