DC Motors For constant torque drive which speed control method is preferred? Mechanical loading system Shunt armature control Field control Armature voltage control Mechanical loading system Shunt armature control Field control Armature voltage control ANSWER DOWNLOAD EXAMIANS APP
DC Motors For starting a dc motor a starter is required because None of the listed here It starts the motor It limits the speed of the motor It limits the starting current to a safe value None of the listed here It starts the motor It limits the speed of the motor It limits the starting current to a safe value ANSWER DOWNLOAD EXAMIANS APP
DC Motors For the same H.P. rating and full load speed, following motor has poor starting torque Differentially compounded Shunt Cumulatively compounded Series Differentially compounded Shunt Cumulatively compounded Series ANSWER DOWNLOAD EXAMIANS APP
DC Motors The running speed of a dc series motor is basically determined by Armature reaction Field excitation Load None of the listed here Armature reaction Field excitation Load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? Low cost Wide speed range Stability High starting torque Low cost Wide speed range Stability High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Voltage control method Armature resistance control method Field divertor method Field control method Voltage control method Armature resistance control method Field divertor method Field control method ANSWER DOWNLOAD EXAMIANS APP
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