DC Generators While applying Fleming's right-hand rule to and the direction of induced e.m.f., the thumb points towards Direction of induced e.m.f. Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux Direction of flux Direction of induced e.m.f. Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of motion of conductor, if forefinger points along the lines of flux Direction of flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators The rapid wear of brushes takes place due to Rough commutator bars Excessive spring pressure All of these Abrasion from dust Rough commutator bars Excessive spring pressure All of these Abrasion from dust ANSWER DOWNLOAD EXAMIANS APP
DC Generators The insulating material used between the commutator segments is normally Graphite Mica Paper Insulating varnish Graphite Mica Paper Insulating varnish ANSWER DOWNLOAD EXAMIANS APP
DC Generators The essential condition for parallel operation of two D.C. generators is that they have Same percentage regulation The same operation r.p.m. Same kW rating The same drooping voltage characteristics Same percentage regulation The same operation r.p.m. Same kW rating The same drooping voltage characteristics ANSWER DOWNLOAD EXAMIANS APP
DC Generators Current versus time graph for an ideal commutation is a Hydrobola None of the listed here Parabola Straight line Hydrobola None of the listed here Parabola Straight line ANSWER DOWNLOAD EXAMIANS APP
DC Generators Laminations of core are generally made of Stainless steel Silicon steel Case iron Carbon Stainless steel Silicon steel Case iron Carbon ANSWER DOWNLOAD EXAMIANS APP
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