DC Generators Open circuited armature coil of a D.C. machine is Indicated by a spark completely around the commutator Identified by the scarring of the commutator segment to which open circuited coil is connected None of these Both of the listed here Indicated by a spark completely around the commutator Identified by the scarring of the commutator segment to which open circuited coil is connected None of these Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Small dc machines generally have _____ poles. 8 2 6 4 8 2 6 4 ANSWER DOWNLOAD EXAMIANS APP
DC Generators _____ together are called stray losses. Field copper loss and iron loss Copper and iron losses Frictional loss and copper loss Iron and friction losses Field copper loss and iron loss Copper and iron losses Frictional loss and copper loss Iron and friction losses ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main factor which leads to unstable parallel operation of flat and over compounded generators is their rising voltage characteristics unequal number of turns in their series field windings unequal speed regulation of their primemovers unequal series field resistances their rising voltage characteristics unequal number of turns in their series field windings unequal speed regulation of their primemovers unequal series field resistances ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is ______ winding. Partly open circuit and partly closed circuit An open circuit A closed circuit None of the listed here Partly open circuit and partly closed circuit An open circuit A closed circuit None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The size of a dc generator can be reduced by using ______ High resistance winding material Magnetic material of high permeability Iron commutator Lap winding High resistance winding material Magnetic material of high permeability Iron commutator Lap winding ANSWER DOWNLOAD EXAMIANS APP
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