DC Motors No load speed of which of the following motor will be highest? Shunt motor Series motor Differentially compounded motor Cummulative compounded motor Shunt motor Series motor Differentially compounded motor Cummulative compounded motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The main disadvantage of the Ward-Leonard control method is Low efficiency at high loads High initial cost High maintenance cost All of these Low efficiency at high loads High initial cost High maintenance cost All of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors A compensating winding is an auxiliary winding embedded in slots in 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 The armature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor constant torque is produced due to Rotor laminations Pole shoes Commutator End plates Rotor laminations Pole shoes Commutator End plates ANSWER DOWNLOAD EXAMIANS APP
DC Motors In variable speed motor None of these A stronger commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed Same commutating field is needed at low speed than at high speed None of these A stronger commutating field is needed at low speed than at high speed A weaker commutating field is needed at low speed than at high speed Same commutating field is needed at low speed than at high speed ANSWER DOWNLOAD EXAMIANS APP
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 None of the listed here Interchanging field terminals Either of Interchanging field or Interchanging supply Interchanging supply terminals None of the listed here Interchanging field terminals ANSWER DOWNLOAD EXAMIANS APP
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