DC Motors In which of the following tests only one motor is required? Field's test Brake test Swinburne's test Hopkinson's test Field's test Brake test Swinburne's test Hopkinson's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors When the speed of dc motor increases, its armature current None of the listed here Increases Decreases Remains same None of the listed here Increases Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which method of braking is generally used in elevators? None of these Regenerative braking Rheostat braking Plugging None of these Regenerative braking Rheostat braking Plugging ANSWER DOWNLOAD EXAMIANS APP
DC Motors In the dc motor the iron losses occur in Commutator Field Armature Brushes Commutator Field Armature Brushes ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Field control Mechanical loading system Shunt armature control Armature voltage control Field control Mechanical loading system Shunt armature control Armature voltage control ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used None of these Where constant operating speed is needed Where load is constant Where load changes frequently None of these Where constant operating speed is needed Where load is constant Where load changes frequently ANSWER DOWNLOAD EXAMIANS APP
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