DC Motors The speed of a dc motor is inversely proportional to flux per pole Directly proportional to flux per pole None of the listed here inversely proportional to applied voltage inversely proportional to flux per pole Directly proportional to flux per pole None of the listed here inversely proportional to applied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Armature conductors Armature rotor Commutator Yoke Armature conductors Armature rotor Commutator Yoke ANSWER DOWNLOAD EXAMIANS APP
DC Motors Differentially compound D.C. motors can find applications requiring High starting torque Frequent on-off cycles Variable speed Low starting torque High starting torque Frequent on-off cycles Variable speed Low starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? Stability Low cost Wide speed range High starting torque Stability Low cost Wide speed range High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors In variable speed motor A stronger 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 weaker commutating field is needed at low speed than at high speed A stronger 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 weaker commutating field is needed at low speed than at high speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The friction and windage losses in a dc motor depends upon Flux Field and armature resistance Speed Armature current Flux Field and armature resistance Speed Armature current ANSWER DOWNLOAD EXAMIANS APP
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