DC Generators The armature winding of a dc machine is place on the rotor to ______ Reduce losses Save iron Reduce armature reaction Facilitate commutation Reduce losses Save iron Reduce armature reaction Facilitate commutation ANSWER DOWNLOAD EXAMIANS APP
DC Generators Laminations of core are generally made of Stainless steel Case iron Silicon steel Carbon Stainless steel Case iron Silicon steel Carbon ANSWER DOWNLOAD EXAMIANS APP
DC Generators The physical size of 100 kW, 2000 rpm generator is _____ that of 10 kW, 200 rpm generator. Less than About the same as None of the listed here More than Less than About the same as None of the listed here More than ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a simplex wave winding, the number of parallel paths is equal to _____ Numbers of poles in the machine 2 Number of pairs of poles None of the listed here Numbers of poles in the machine 2 Number of pairs of poles None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Inter-pole flux should be sufficient to Neutralize the commutating self induced e.m.f. Neutralize the armature reaction flux None of these Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the commutating self induced e.m.f. Neutralize the armature reaction flux None of these Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. generators are running in parallel an equalizer bar is used To increase the series flux 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 generated e.m.f. To increase the series flux 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 generated e.m.f. ANSWER DOWNLOAD EXAMIANS APP
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