DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Shunt motor Cummulative compound motor Series motor Differentially compound motor Shunt motor Cummulative compound motor Series motor Differentially compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will remain almost/constant The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will reduce The speed will remain almost/constant The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will reduce ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? Regenerative braking Rheostat braking Plugging None of these Regenerative braking Rheostat braking Plugging None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be Cumulatively compounded Differentially compounded Level compounded Under compounded Cumulatively compounded Differentially compounded Level compounded Under compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors The maximum end play of a motor is about 0.4 mm 10 mm 2 mm 6 mm 0.4 mm 10 mm 2 mm 6 mm ANSWER DOWNLOAD EXAMIANS APP
DC Motors As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit A high value resistor is connected across the field winding A resistance is connected parallel to the armature Armature is temporarily open circuited A resistance is connected in series with armature A high value resistor is connected across the field winding A resistance is connected parallel to the armature Armature is temporarily open circuited A resistance is connected in series with armature ANSWER DOWNLOAD EXAMIANS APP
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