Open circuited armature coil of a D.C. machine is
A. Identified by the scarring of the commutator segment to which open circuited coil is connected
B. Indicated by a spark completely around the commutator
C. Both (A) and (B)
D. None of the above
Answer: Option C
This Question Belongs to Electrical Engineering >> D.C. Generators
Related Questions on D.C. Generators
A cumulatively compounded long shunt generator when operating as a motor would be
A. Cumulatively compounded long shunt
B. Differentially compounded long shunt
C. Cumulatively compounded short shunt
D. Differentially compounded short shunt
A. Demagnetization only
B. Cross magnetization as well as magnetization
C. Cross-magnetization as well as demagnetizing
D. Cross magnetization only
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