DC Generators The yoke of a dc machine is made of Aluminum Cast steel Silicon steel Soft iron Aluminum Cast steel Silicon steel Soft iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To increase the generated e.m.f. To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the series flux To increase the generated e.m.f. To reduce the combined effect of armature reaction of both the machines So that the two identical machines will pass approximately equal currents to the load To increase the series flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load To increase the series flux To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load To increase the series flux ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following will not prevent a self excited shunt generator from building upto its full voltage? Wrong direction of rotation Open field Speed too high No residual magnetism Wrong direction of rotation Open field Speed too high No residual magnetism ANSWER DOWNLOAD EXAMIANS APP
DC Generators Laminations of core are generally made of Silicon steel Carbon Stainless steel Case iron Silicon steel Carbon Stainless steel Case iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators The commutator pitch for simplex lap winding is equal to None of the listed here Number of pairs of poles Numbers of poles in the machine 1 None of the listed here Number of pairs of poles Numbers of poles in the machine 1 ANSWER DOWNLOAD EXAMIANS APP