Electrical Machines The constant losses in transformer is/are both 2 and 3. hysteresis loss. eddy current loss. copper loss. both 2 and 3. hysteresis loss. eddy current loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature coil is short circuited by brushes when it lies in any of above positions. in none of above positions. along field axis. along neutral axis. in any of above positions. in none of above positions. along field axis. along neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature reaction mmf in a DC machines has a form of triangular. sinusoidal. trapezoidal. rectangular. triangular. sinusoidal. trapezoidal. rectangular. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Straight line through the origin. Rectangular hyperbola Straight line parallel to the speed axis. Circle about the origin. Straight line through the origin. Rectangular hyperbola Straight line parallel to the speed axis. Circle about the origin. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An auto transformer having a transformation ratio of 0.8 supplies a load pf 10 KW. The power transfered inductively from the primary to secondary is 8 KW. 2 KW. 10 KW. 0. 8 KW. 2 KW. 10 KW. 0. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as an inductor. None of these. A resistor. A capacitor. an inductor. None of these. A resistor. A capacitor. ANSWER DOWNLOAD EXAMIANS APP
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