DC Generators Current versus time graph for an ideal commutation is a Straight line Hydrobola Parabola None of the listed here Straight line Hydrobola Parabola None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The real working part of a dc machine is the ______ None of the listed here Armature winding Field winding Commutator None of the listed here Armature winding Field winding Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Generators Lap winding is composed of That even number which is exact multiple of poles + 2 Any even number of conductors Any odd number of conductors That even number which is exact multiple of poles That even number which is exact multiple of poles + 2 Any even number of conductors Any odd number of conductors That even number which is exact multiple of poles ANSWER DOWNLOAD EXAMIANS APP
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 A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be zero will be of v Hz 5 will be of 5 Hz will be of 5 xiVHz will be zero will be of v Hz 5 will be of 5 Hz will be of 5 xiVHz ANSWER DOWNLOAD EXAMIANS APP
DC Generators The purpose of providing dummy coils in a generator is To provide mechanical balance for the rotor To amplify voltage To enhance flux density To reduce eddy current losses To provide mechanical balance for the rotor To amplify voltage To enhance flux density To reduce eddy current losses ANSWER DOWNLOAD EXAMIANS APP