A. increase
B. decrease
C. remain unaffected
D. fluctuate heavily
A. reduces generator e.m.f.
B. increases armature speed
C. reduces interpoles flux density
D. results in sparking trouble
A. armature reaction
B. armature resistance drop
C. field weakening due to armature reaction and armature
D. commutation
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. same kW rating
B. the same operation r.p.m.
C. the same droog voltage characteristics
D. same percentage regulation
A. slots
B. armature conductors
C. winding elements
D. poles
A. flux/pole
B. speed of armature
C. number of poles
D. all of the above