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 ______ 150 50 100 10 150 50 100 10 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature winding of a dc machine is place on the rotor to ______ Save iron Facilitate commutation Reduce losses Reduce armature reaction Save iron Facilitate commutation Reduce losses Reduce armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of dc generator is laminated to Reduce eddy current loss Reduce the bulk Provide the bulk Insulate the core Reduce eddy current loss Reduce the bulk Provide the bulk Insulate the core ANSWER DOWNLOAD EXAMIANS APP
DC Generators The commutator of a dc generator acts as None of the listed here An amplifier A rectifier A load None of the listed here An amplifier A rectifier A load ANSWER DOWNLOAD EXAMIANS APP
DC Generators The field winding of a dc shunt machine usually caries _______ of the rated current of the machine. 2% to 5% 15 to 25% Less than 0.5 % More than 20% 2% to 5% 15 to 25% Less than 0.5 % More than 20% ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a short shunt compound wound generator, the shunt field is connected in parallel with Armature Series combination of armature and series field Series field Parallel combination of armature and series field Armature Series combination of armature and series field Series field Parallel combination of armature and series field ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS