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 A dc series motor is best suited for driving Cranes and hoists Shear and punches Machine tools None of the listed here Cranes and hoists Shear and punches Machine tools None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking Dynamic braking None of these Plugging Regenerative Dynamic braking None of these Plugging Regenerative ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Hopkinson's test Field's test Brake test Swinburne's test Hopkinson's test Field's test Brake test Swinburne's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors For starting a dc motor a starter is required because It limits the speed of the motor None of the listed here It limits the starting current to a safe value It starts the motor It limits the speed of the motor None of the listed here It limits the starting current to a safe value It starts the motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following loss in a D.C. generator varies significantly with the load current? Armature copper loss Windage loss None of these Field copper loss Armature copper loss Windage loss None of these Field copper loss ANSWER DOWNLOAD EXAMIANS APP
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