DC Generators The armature of a dc machine having 10 poles is rotating at a speed of 10 revolution per second. The number of hysteresis loops formed per second is ______ 50 10 150 100 50 10 150 100 ANSWER DOWNLOAD EXAMIANS APP
DC Generators An 8 pole, 250 V, wave wound generator has 400 conductors. If the generator is to be lap wound, the number of conductors required is ______ 1600 3200 800 100 1600 3200 800 100 ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. machine stray loss is the sum of Armature copper loss and iron loss Shunt field copper loss and mechanical loss Total copper loss and mechanical loss Iron loss and mechanical loss Armature copper loss and iron loss Shunt field copper loss and mechanical loss Total copper loss and mechanical loss Iron loss and mechanical loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The copper loss is constant for None of the listed here Both shunt and compound generator Shunt generator only Series generator only None of the listed here Both shunt and compound generator Shunt generator only Series generator only ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole , lap wound dc shunt generator has an armature winding consisting of 220 turns each of 0.004 Ω. The armature resistance is 0.5 Ω 0.025 Ω 1 Ω 0.055 Ω 0.5 Ω 0.025 Ω 1 Ω 0.055 Ω ANSWER DOWNLOAD EXAMIANS APP
DC Generators The terminal voltage of a D.C. shunt generator drops on load because of all of the following reasons except Commutation Armature resistance drop Armature reaction Field weakening due to armature reaction and armature Commutation Armature resistance drop Armature reaction Field weakening due to armature reaction and armature ANSWER DOWNLOAD EXAMIANS APP
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