DC Motors In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be Around 90% Less than 50% Anywhere between 75% and 90% 1 Around 90% Less than 50% Anywhere between 75% and 90% 1 ANSWER DOWNLOAD EXAMIANS APP
DC Motors The torque developed by a dc motor is directly proportional to Armature resistance × armature current None of the listed here Armature resistance × applied voltage Flux per pole × armature current Armature resistance × armature current None of the listed here Armature resistance × applied voltage Flux per pole × armature current ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Steel rolling mills Elevators Centrifugal pumps Colliery winders Steel rolling mills Elevators Centrifugal pumps Colliery winders ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is most suitable for Punch presses Lathes Cranes Pump Punch presses Lathes Cranes Pump ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following loss in a D.C. generator varies significantly with the load current? Field copper loss Armature copper loss Windage loss None of these Field copper loss Armature copper loss Windage loss None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors The power mentioned on the name plate of an electric motor indicates The power drawn in kVA The gross power The power drawn in kW The output power available at the shaft The power drawn in kVA The gross power The power drawn in kW The output power available at the shaft ANSWER DOWNLOAD EXAMIANS APP
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