A. Total copper loss and mechanical loss B. Armature copper loss and iron loss C. Shunt field copper loss and mechanical loss D. Iron loss and mechanical loss
A. Any even number of conductors B. Any odd number of conductors C. That even number which is exact multiple of poles + 2 D. That even number which is exact multiple of poles
A. Cumulatively compounded long shunt B. Deferentially compounded long shunt C. Cumulatively compounded short shunt D. Differentially compounded short shunt
A. The brushes of opposite polarity should track each other B. The brushes of same polarity should track each other C. Brush position has no effect on the commutator grooving D. None
A. Insulation failure between two commutator bars B. Insulation failure between two turns of a coil C. Two of more turns of the same coil getting grounded D. All of the above
