DC Motors The speed of a dc motor can be controlled by changing Armature circuit resistance All of the listed here Aplied voltage Is flux Armature circuit resistance All of the listed here Aplied voltage Is flux ANSWER DOWNLOAD EXAMIANS APP
DC Motors ______ motors never use belt connected loads. Differentially compounded Shunt Series Cummulative compounded Differentially compounded Shunt Series Cummulative compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors The torque developed by a dc motor is directly proportional to 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 Armature resistance × armature current Flux per pole × armature current ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating winding is basically used in a dc machine None of the listed here To reduce armature reaction To improve commutation To control the speed of machine None of the listed here To reduce armature reaction To improve commutation To control the speed of machine ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? High starting torque Stability Low cost Wide speed range High starting torque Stability Low cost Wide speed range 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
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