

MCQOPTIONS
Saved Bookmarks
1. |
A 3 phase squirrel case induction motor has a full load efficiency of 0.8 and a maximum efficiency of 0.9. If it is operated at a slip of 0.6 by applying a reduced voltage, then efficiency of the motor at this operating point |
A. | less than 0.4 |
B. | greater than 0.6 |
C. | in the range of 0.8 to 0.1 |
D. | none of these |
Answer» B. greater than 0.6 | |