DC Generators The efficiency of a dc generator means its Electrical efficiency Overall efficiency None of the listed here Mechanical efficiency Electrical efficiency Overall efficiency None of the listed here Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
DC Generators The efficiency of a dc generator is maximum when its variable loss is Equal to half of constant loss None of the listed here Equal to double the constant loss Equal to Constant loss Equal to half of constant loss None of the listed here Equal to double the constant loss Equal to Constant loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine is made of ______ Silocon steel Soft iron Cast steel Wrought iron Silocon steel Soft iron Cast steel Wrought iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators The greatest eddy current loss occurs in the _____ of a dc machine. Commutating poles Armature Yoke Field poles Commutating poles Armature Yoke Field poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators The bearings used to support the rotor shafts are generally Needle bearings Ball bearings Magnetic bearings Bush bearings Needle bearings Ball bearings Magnetic bearings Bush bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators To avoid formation of grooves in the commutator of a D.C. machine Brush position has no effect on the commutator grooving The brushes of same polarity should track each other All of these The brushes of opposite polarity should track each other Brush position has no effect on the commutator grooving The brushes of same polarity should track each other All of these The brushes of opposite polarity should track each other ANSWER DOWNLOAD EXAMIANS APP
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