DC Motors The power mentioned on the name plate of an electric motor indicates The power drawn in kW The power drawn in kVA The output power available at the shaft The gross power The power drawn in kW The power drawn in kVA The output power available at the shaft The gross power ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc series motors are used in those applications where _____ is required. Low no load speed None of the listed here High starting torque Constant speed Low no load speed None of the listed here High starting torque Constant speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The shaft torque in a dc motor is less than total armature torque because of ______ in the motor. Cu losses Iron and friction losses None of the listed here Field losses Cu losses Iron and friction losses None of the listed here Field losses ANSWER DOWNLOAD EXAMIANS APP
DC Motors Carbon brushes are preferable to copper brushes because _____ They reduce sparking They have longer life They reduce armature reaction They have lower resistance They reduce sparking They have longer life They reduce armature reaction They have lower resistance 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
DC Motors By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor? Frame Commutator Stator Shaft Frame Commutator Stator Shaft ANSWER DOWNLOAD EXAMIANS APP
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