A. series generator
B. shunt generator
C. long shunt compound generator
D. any of’the above
A. imperfect brush contact
B. field resistance less than the critical resistance
C. no residual magnetism in the generator
D. faulty shunt connections tending to reduce the residual magnetism
A. silicon steel
B. copper
C. non-ferrous material
D. cast-iron
A. Series generator
B. Shunt generator
C. Over compound generator
D. Flat compound generator
A. The direction of that generator is reversed
B. The speed of that generator is increased
C. The field of that generator is weakened
D. That generator takes large of loads
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. 4
B. 8
C. 16
D. 32