DC Generators The ideal commutation in a coil is not possible because each coil has Capacitance None of the listed here Inductance Resistance Capacitance None of the listed here Inductance Resistance ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main drawback of a dc shunt generator is that Shunt field circuit has high resistance It is expensive Generated voltage is small Terminal voltage drops considerably Shunt field circuit has high resistance It is expensive Generated voltage is small Terminal voltage drops considerably ANSWER DOWNLOAD EXAMIANS APP
DC Generators The commutator pitch for simplex lap winding is equal to Numbers of poles in the machine None of the listed here Number of pairs of poles 1 Numbers of poles in the machine None of the listed here Number of pairs of poles 1 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The size of a dc generator can be reduced by using ______ Lap winding High resistance winding material Magnetic material of high permeability Iron commutator Lap winding High resistance winding material Magnetic material of high permeability Iron commutator 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 Speed too high No residual magnetism Open field Wrong direction of rotation Speed too high No residual magnetism Open field ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used 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 To increase the speed and hence generated e.m.f. To reduce the combined effect of armature reaction of both machines ANSWER DOWNLOAD EXAMIANS APP
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