Differentially compounded D.C. motor has got maximum self loading property.
Answer : Series motor has got maximum self relieving property.
Answer : In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be less than 50%.
Answer : In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be more than full-load current.
Answer : A.C. series motor as compared to D.C. series motor has smaller brush width, less number of field turns, more number of armature turns, less air gap.