Electrical Machines Open circuit test on transformer gives both 1and 2 eddy current loss hysteresis loss copper loss both 1and 2 eddy current loss hysteresis loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Cummulative compound. Series shunt. Differentical compound. have an equal number of electrons and protons. Cummulative compound. Series shunt. Differentical compound. have an equal number of electrons and protons. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is 0.5. Greater than 1. near to 1. 0.25. 0.5. Greater than 1. near to 1. 0.25. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature reaction mmf in a DC machines has a form of rectangular. trapezoidal. triangular. sinusoidal. rectangular. trapezoidal. triangular. sinusoidal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 500 V, 120 KW, 50 Hz, star connected synchronous motor operating at 0.8 power factor leading has full load efficiency of 91%. The armature resistance is equal to 0.08Ω. The magnitude of armature current is nearly equal to 127 A. 173 A. 240 A. 190 A. 127 A. 173 A. 240 A. 190 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following speed control of DC motor the speed obtained is below than the rated speed? Any of above. Armature voltage control. Field resistance control. Armature circuit resistance control. Any of above. Armature voltage control. Field resistance control. Armature circuit resistance control. ANSWER DOWNLOAD EXAMIANS APP
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