DC Motors In dc machines fractional pitch winding is used To increase the generated emf To reduce the sparking To reduce the generated emf To improve cooling To increase the generated emf To reduce the sparking To reduce the generated emf To improve cooling ANSWER DOWNLOAD EXAMIANS APP
DC Motors Armature reaction in dc motor is increased When the armature current increases When the armature current decreases When the field current increases By interpoles When the armature current increases When the armature current decreases When the field current increases By interpoles ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating pole winding is connected in Series with the armature Parallel with the armature None of the listed here Series-parallel with the armature Series with the armature Parallel with the armature None of the listed here Series-parallel with the armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors A direct on line starter is used for starting motors Upto 10 HP Upto 15 HP Upto 5 HP Upto 20 HP Upto 10 HP Upto 15 HP Upto 5 HP Upto 20 HP ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Plugging Regenerative braking None of these Rheostat braking Plugging Regenerative braking None of these Rheostat braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors When the speed of dc motor increases, its armature current Increases None of the listed here Remains same Decreases Increases None of the listed here Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
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