Electrical Machines Equalizer rings are used in which of the followings? lap winding None of these both 1 and 2 wave winding lap winding None of these both 1 and 2 wave winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine is a both are correct. none of above are correct. convection machine. conduction machine. both are correct. none of above are correct. convection machine. conduction machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which one of the following statement is correct ? In an induction motor if the air gap is increased then its power factor will reduce its efficiency will improve its speed will reduce its speed will increase its power factor will reduce its efficiency will improve its speed will reduce its speed will increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Why are capacitors used with large AC induction motor? Improve power factor. Improve voltage level. Improve power level. Improve current level. Improve power factor. Improve voltage level. Improve power level. Improve current level. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : For a level compounded dc generator to run at constant voltage, the series field mmf must effectively compensate 1. armature reaction mmf 2.armature resistance drop 3. brush contact voltage drop Which of these statements is/are correct ? 2 alone 1 and 2 1, 2 and 3 1 and 3 2 alone 1 and 2 1, 2 and 3 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in a sub – station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub – station will be, 3. 7. 4. 12. 3. 7. 4. 12. ANSWER DOWNLOAD EXAMIANS APP
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