 
			 
			MCQOPTIONS
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				| 1. | Consider a feedback system with gain margin of about 30. At what point does Nyquist plot crosses negative real axis? | 
| A. | -3 | 
| B. | -0.3 | 
| C. | -30 | 
| D. | -0.03 | 
| Answer» C. -30 | |