DC Generators In a D.C. generator External resistance = internal characteristic armature reaction Internal characteristic = magnetization characteristic ohmic drop Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction Internal characteristic = magnetization characteristic ohmic drop Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators The effect of armature reaction is to Increase the total flux Make the air gap flux uniform Decrease the total flux None of the listed here Increase the total flux Make the air gap flux uniform Decrease the total flux None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a four-pole D.C. machine Two north poles follow two south poles All the four poles are north poles All the four poles are south poles Alternate poles are north and south Two north poles follow two south poles All the four poles are north poles All the four poles are south poles Alternate poles are north and south ANSWER DOWNLOAD EXAMIANS APP
DC Generators Shunt generators are most suited for stable parallel operation because of their linear voltage characteristics rising voltage characteristics identical voltage characteristics drooping voltage characteristics linear voltage characteristics rising voltage characteristics identical voltage characteristics drooping voltage characteristics ANSWER DOWNLOAD EXAMIANS APP
DC Generators In dc generator, the constant losses is equal to Stray losses plus shunt cu loss Stray losses Mechanical losses None of the listed here Stray losses plus shunt cu loss Stray losses Mechanical losses None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used To increase the speed and hence generated e.m.f. To reduce the combined effect of armature reaction of both machines So that two similar machines will pass approximately equal currents to the load To increase the series flux To increase the speed and hence generated e.m.f. To reduce the combined effect of armature reaction of both machines So that two similar machines will pass approximately equal currents to the load To increase the series flux ANSWER DOWNLOAD EXAMIANS APP
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