Question

tions 11 and 12: Performance specifications of the system shown in Figure 4 are satisfied ifclo poles are located ats42j Design a lead compensator (find K and a) of the form Kso that the specification is met. s+20 Which of the following values of z meet the specification? - 3.33 C. :-2.86 D. 2-423 E. None of the above 2) Which of the following values of K meet the specification? A. K- 39.0 B. K-140 C. K-78.O D. K-280 E. None of the above Questions 13-15:The control system and the Bode plot for the plamt Go) are shown in Figures 5a &S 13) Which of the following is the best approximation of the gain margin for this system A GM-75 db B. GM-96 db C. GM 18 db D. GM 57 db E GM-35 cb 14) Which of the following is the best approximation of the phase margin for this system A PM-59 B. PM 45 C. PM 72 D. PM 135 E. PM 121 15) The steady-state error with a unit-step input, o-is equal to which of the following when K 1? A -196 10 В е" " 747-10-3 en 3.97 10 De6 18 101 E. None of the above Scanned by CamScanner GIs) 100

Answer 1

for 13,14,15 phase plot is required

2. o.288 9 -18. 419) к Cst 3:33) 2 3 33 2