DC Generators Small dc machines generally have _____ poles. 2 4 6 8 2 4 6 8 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The effect of armature reaction is to Increase the total flux Decrease the total flux Make the air gap flux uniform None of the listed here Increase the total flux Decrease the total flux Make the air gap flux uniform None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators Inter-pole flux should be sufficient to Neutralize the armature reaction flux None of these Neutralize the commutating self induced e.m.f. Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil Neutralize the armature reaction flux None of these Neutralize the commutating self induced e.m.f. Neutralize both the armature reaction flux as well as commutating e.m.f. induced in the coil ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Is amenable to better voltage control Is more stable Has all above features Has exciting current independent of load current Is amenable to better voltage control Is more stable Has all above features Has exciting current independent of load current ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of brushes in a commutator depends on Type of winding Speed of armature Voltage Amount of current to be collected Type of winding Speed of armature Voltage Amount of current to be collected ANSWER DOWNLOAD EXAMIANS APP
DC Generators While applying Fleming's right-hand rule to and the direction of induced e.m.f., the thumb points towards Direction of motion of conductor, if forefinger points along the lines of flux Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of induced e.m.f. Direction of flux Direction of motion of conductor, if forefinger points along the lines of flux Direction of motion of the conductor if forefinger points in the direction of generated e.m.f. Direction of induced e.m.f. Direction of flux ANSWER DOWNLOAD EXAMIANS APP