DC Generators The purpose of providing dummy coils in a generator is To reduce eddy current losses To amplify voltage To enhance flux density To provide mechanical balance for the rotor To reduce eddy current losses To amplify voltage To enhance flux density To provide mechanical balance for the rotor ANSWER DOWNLOAD EXAMIANS APP
DC Generators An 8 pole duplex lap winding will have ______ parallel paths. 32 8 16 4 32 8 16 4 ANSWER DOWNLOAD EXAMIANS APP
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 ______ 50 100 10 150 50 100 10 150 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The yoke of a dc machine is made of Cast steel Aluminum Silicon steel Soft iron Cast steel Aluminum Silicon steel Soft iron ANSWER DOWNLOAD EXAMIANS APP
DC Generators Carbon brushes are used in a dc machine because _______ Carbon is cheap Contact resistance is decreased Carbon lubricates and polishes the commutator None of the listed here Carbon is cheap Contact resistance is decreased Carbon lubricates and polishes the commutator None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Which of the following generating machine will offer constant voltage on all loads? Separately excited generator Level compounded generator Self-excited generator All of these Separately excited generator Level compounded generator Self-excited generator All of these ANSWER DOWNLOAD EXAMIANS APP
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