DC Motors For constant torque drive which speed control method is preferred? Armature voltage control Shunt armature control Field control Mechanical loading system Armature voltage control Shunt armature control Field control Mechanical loading system ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A low resistance circuit None of these A highly resistive circuit A capacitive circuit A low resistance circuit None of these A highly resistive circuit A capacitive circuit ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc motor is still used in industrial applications because it Provides fine speed control Is cheap None of the listed here Is simple in construction Provides fine speed control Is cheap None of the listed here Is simple in construction ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is comnected across the AC supply it will Not run Burn due to heat produced in the field winding by eddy currents Run at lower speed Run at normal speed Not run Burn due to heat produced in the field winding by eddy currents Run at lower speed Run at normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. generators are normally designed for maximum efficiency around All of these Full load Rated r.p.m. Rated voltage All of these Full load Rated r.p.m. Rated voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Plugging None of these Rheostat braking Regenerative braking Plugging None of these Rheostat braking Regenerative braking ANSWER DOWNLOAD EXAMIANS APP
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