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 increase the field resistance check armature insulation resistance reverse the field connections increase the speed of primemover increase the field resistance check armature insulation resistance reverse the field connections increase the speed of primemover 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 In a D.C. generator Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction Internal characteristic = magnetization characteristic ohmic drop Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction External resistance = internal characteristic armature reaction Internal characteristic = magnetization characteristic ohmic drop ANSWER DOWNLOAD EXAMIANS APP
DC Generators The brush voltage drop in dc machine is about _______ 2 V 10 V 0.1 V 20 V 2 V 10 V 0.1 V 20 V ANSWER DOWNLOAD EXAMIANS APP
DC Generators The nature of armature winding of a dc machine is decided by Commutator pitch Front pitch None of the listed here Back pitch Commutator pitch Front pitch None of the listed here Back pitch ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of brushes in a commutator depends on Voltage Speed of armature Amount of current to be collected Type of winding Voltage Speed of armature Amount of current to be collected Type of winding ANSWER DOWNLOAD EXAMIANS APP
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