

MCQOPTIONS
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1. |
The OLTF of a unity feedback system is K(s+2)(s+4)/(s+5)(s+6) the angle of arrival of the root loci as s =-2, and s =-4 respectively are: |
A. | 0 ,180 |
B. | 180 ,0 |
C. | 90 ,180 |
D. | 180 , 90 |
Answer» C. 90 ,180 | |