DC Motors The commutating winding is basically used in a dc machine None of the listed here To reduce armature reaction To control the speed of machine To improve commutation None of the listed here To reduce armature reaction To control the speed of machine To improve commutation ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor has the poorest speed regulation? Cummulative compound motor Series motor Shunt motor Differentially compound motor Cummulative compound motor Series motor Shunt motor Differentially compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The torque developed by a dc motor is directly proportional to Armature resistance × armature current Flux per pole × armature current None of the listed here Armature resistance × applied voltage Armature resistance × armature current Flux per pole × armature current None of the listed here Armature resistance × applied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors Armature reaction in dc motor is increased When the armature current decreases When the field current increases When the armature current increases By interpoles When the armature current decreases When the field current increases When the armature current increases By interpoles ANSWER DOWNLOAD EXAMIANS APP
DC Motors The compensating winding is connected in None of the listed here Series-parallel with armature Parallel with armature Series with armature None of the listed here Series-parallel with armature Parallel with armature Series with armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors Small dc motors up to 5 HP usually have 4 poles 6 poles 2 poles 8 poles 4 poles 6 poles 2 poles 8 poles ANSWER DOWNLOAD EXAMIANS APP
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