A.Compensating winding in a D.C. machine helps in commutation
B.Back pitch and front pitch are both odd and approximately equal to the pole pitch
C.Equilizing bus bars are used with parallel running of D.C. shunt gen¬erators
D.In a D. C. generator interpoles winding is connected in series with the armature winding
Explanation: The correct answer is Equilizing bus bars are used with parallel running of D.C. shunt gen¬erators.
Submitted by: Academy of Pakistan