Electrical Machines Armature coil is short circuited by brushes when it lies in none of above positions. along neutral axis. in any of above positions. along field axis. in none of above positions. along neutral axis. in any of above positions. along field axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the actual arrangement of series wound generator? Armature winding is in series with load. Armature and field both are parallel. Armature and field both are connected. Armature and field both are in series with the load. Armature winding is in series with load. Armature and field both are parallel. Armature and field both are connected. Armature and field both are in series with the load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature reaction mmf in a DC machines has a form of rectangular. trapezoidal. sinusoidal. triangular. rectangular. trapezoidal. sinusoidal. triangular. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the ripples in the direct emf generated are reduced by employing commutator with large number of segments. equalizer rings. carbon brushes. graphite brushes. commutator with large number of segments. equalizer rings. carbon brushes. graphite brushes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the number of poles required, when the frequency is 50Hz and speed of the motor is 500 rpm? 10 12 24 5 10 12 24 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines 3rd harmonics are eliminated in induction motor by using V connection. zig - zag connection. delta connection. star connection. V connection. zig - zag connection. delta connection. star connection. ANSWER DOWNLOAD EXAMIANS APP
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