DC Generators If a self excited D.C. generator after being installed, fails to build up on its first trial run, the first thing to do is to check armature insulation resistance reverse the field connections increase the field resistance increase the speed of primemover check armature insulation resistance reverse the field connections increase the field resistance increase the speed of primemover ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Has all above features Has exciting current independent of load current Is amenable to better voltage control Is more stable Has all above features Has exciting current independent of load current Is amenable to better voltage control Is more stable ANSWER DOWNLOAD EXAMIANS APP
DC Generators Wave wound generators provide More current but less voltage More current and more voltage None of the listed here Less current but more voltage More current but less voltage More current and more voltage None of the listed here Less current but more voltage ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature copper loss in a dc generator is a None of the listed here Stray loss Constant loss Variable loss None of the listed here Stray loss Constant loss Variable loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately 5 percent 10 percent 25 percent 40 percent 5 percent 10 percent 25 percent 40 percent ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a four-pole D.C. machine All the four poles are south poles Two north poles follow two south poles All the four poles are north poles Alternate poles are north and south All the four poles are south poles Two north poles follow two south poles All the four poles are north poles Alternate poles are north and south ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS