DC Generators The greatest eddy current loss occurs in the _____ of a dc machine. Field poles Yoke Commutating poles Armature Field poles Yoke Commutating poles Armature ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine is made of ______ Soft iron Silocon steel Wrought iron Cast steel Soft iron Silocon steel Wrought iron Cast steel ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine The brushes of opposite polarity should track each other All of these The brushes of same polarity should track each other Brush position has no effect on the commutator grooving The brushes of opposite polarity should track each other All of these The brushes of same polarity should track each other Brush position has no effect on the commutator grooving ANSWER DOWNLOAD EXAMIANS APP
DC Generators Magnetic field in a D.C. generator is produced by Electromagnets Permanent magnets Both (A) and (B) None of these Electromagnets Permanent magnets Both (A) and (B) None of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators The O. C. C. of a dc generator is also called its_______ characteristic. External Internal No load saturation Performance External Internal No load saturation Performance ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole , lap wound dc shunt generator has an armature winding consisting of 220 turns each of 0.004 Ω. The armature resistance is 1 Ω 0.025 Ω 0.055 Ω 0.5 Ω 1 Ω 0.025 Ω 0.055 Ω 0.5 Ω ANSWER DOWNLOAD EXAMIANS APP
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