DC Generators The armature winding of a dc machine is ______ winding. A closed circuit Partly open circuit and partly closed circuit None of the listed here An open circuit A closed circuit Partly open circuit and partly closed circuit None of the listed here An open circuit ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a commutator Copper is harder than mica Mica and copper are equally hard Mica is harder than copper None of the listed here Copper is harder than mica Mica and copper are equally hard Mica is harder than copper None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Magnetic field in a D.C. generator is produced by Both (A) and (B) Electromagnets None of these Permanent magnets Both (A) and (B) Electromagnets None of these Permanent magnets ANSWER DOWNLOAD EXAMIANS APP
DC Generators Current versus time graph for an ideal commutation is a Straight line Parabola Hydrobola None of the listed here Straight line Parabola Hydrobola None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The bearings used to support the rotor shafts are generally Needle bearings Magnetic bearings Ball bearings Bush bearings Needle bearings Magnetic bearings Ball bearings Bush bearings ANSWER DOWNLOAD EXAMIANS APP
DC Generators The brush voltage drop in dc machine is about _______ 0.1 V 10 V 20 V 2 V 0.1 V 10 V 20 V 2 V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS