DC Generators The critical resistance of the D.C. generator is the resistance of Load Brushes Armature Field Load Brushes Armature Field ANSWER DOWNLOAD EXAMIANS APP
DC Generators ______ dc machine are most common. 8 pole 6 pole 2 pole 4 pole 8 pole 6 pole 2 pole 4 pole ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main drawback of a dc shunt generator is that Generated voltage is small Shunt field circuit has high resistance It is expensive Terminal voltage drops considerably Generated voltage is small Shunt field circuit has high resistance It is expensive Terminal voltage drops considerably ANSWER DOWNLOAD EXAMIANS APP
DC Generators The purpose of providing dummy coils in a generator is To reduce eddy current losses To enhance flux density To amplify voltage To provide mechanical balance for the rotor To reduce eddy current losses To enhance flux density To amplify voltage To provide mechanical balance for the rotor ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature core of a D.C. generator is usually made of Nonferrous material Silicon steel Cast-iron Copper Nonferrous material Silicon steel Cast-iron Copper ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Mechanical loss Iron loss Constant loss Stray loss Mechanical loss Iron loss Constant loss Stray loss ANSWER DOWNLOAD EXAMIANS APP