DBATU Model MCQ – Control System Views: 299 [adinserter block="1"] Welcome to your Control System, dated January 29, 2023 1. Find out the Transfer function for the closed loop control system given belowDeselect Answer G(s)/(1+G(s)*H(s)) G(s)/(1- G(s)*H(s)) G(s)+H(s) G(s)-H(s) 2. Signal flow graph is used to find _________Deselect Answer Stability of the system Controllability of the system Transfer function of the system Poles of the system 3. Gain cross - over frequency is defined asDeselect Answer |G(jω)H(jω)|=1 |G(jω)H(jω)|=0 |G(jω)H(jω)|=∞ |G(jω)H(jω)|=1/2 4. The Transfer function C/R of the block diagram given below isDeselect Answer G1+(G2/(1+G2H1+H2)) G1 G2/(1+G1 H2 H1 H2) G1 G2/( G2H1+ G1 G2 H2+1) G1 G2/(1+G2 H1+ G1 H2) 5. A unity feedback system has Open loop Transfer system (s+1), Then Closed loop Transfer function isDeselect Answer s+1 s-1 s-1/s+3 s+1/s+2 6. A system with transfer function G(s) = (s-5)(s-7). Then the zeros are located atDeselect Answer s = 1, s=-j+5 s = 5, s = 7 s = j-5 , s = j-7 s = j+5 , s = j+7 7. Find out the Transfer function for the given Pole – Zero plotDeselect Answer s-1/s+2 s+1/s-2 s+1/s2+4s+5 s+j/s+2 8. For the first order system having Transfer system 1/(1-sT),the unit impulse response isDeselect Answer e –t/T T e –t/T (1/T) * e t/T T2 e –t/T 9. As compared to a Closed loop system an Open loop system isDeselect Answer More stable as well as more accurate Less stable as well as less accurate Less stable but more accurate More stable but less accurate 10. Phase margin of a system is used to specifyDeselect Answer Relative stability Absolute Stability Time Response Frequency response Please fill in the comment box below. [adinserter block="1"]
