The root locus plot of the roots of the characteristics equation of a closed loop system having the open loop transfer function K (s + 1)/[2 (2s + 1) (3s + 1)] will have a definite number of loci for variation of K from 0 to ∞. The number of loci is_______________?

Related Mcqs:

1. In a closed loop system, the process to be controlled is an integrating process with transfer function 1/2s. The controller proposed to be used in an integral controller with transfer function 1/T1s. When a step change in set point is applied to such a closed loop system, the controlled variable will exhibit__________________?

   A. Overdamped response B. Underdamped response C. Undamped response D. Unstable response...

2. The open loop transfer function of a process is K [{(s + 1) (s + 4)}/{(s + 2) (s + 3)}]. In the root locus diagram, the poles will be at ___________________?

   A. -1, -4 B. 1, 4 C. -2, -3 D. 2, 3...

3. The characteristic equation for the control system with a closed loop transfer function G1/1 + G2 is given by 1 + G2 = 0. The characteristic equation for the control system_________________?

   A. Depends only upon the open loop transfer function B. Determines its stability C. Is the same for set point or load changes D. All A , B & C....

4. In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is_____________?

   A. G/(1 + H) B. H/(1 + G) C. G/H D. H/G...

5. The root locus method, a pole of a transfer function G(s) is the value of s for which G(s) approaches ___________________?

   A. -1 B. 0 C. 1 D. ∞...

6. Characteristic equation is the denominator of ____________ loop transfer function?

   A. Open B. Closed C. Both A. and B. D. Neither A. nor B....

7. ____________ stability method uses open loop transfer function?

   A. Nyquist B. Mikhailov C. Ruth D. None of these...

8. The open loop transfer function of a control system is KR/(1 + TS). This represents ______________?

   A. A first order system B. Dead time system C. A first order time lag D. A second order system...

9. Bode stability method uses ____________ loop transfer function?

   A. Open B. Closed C. Either A. or B. D. Neither A. nor B....

10. Routh stability method uses ______________ loop transfer function?

    A. Open B. Closed C. Either A. or B. D. Neither A. nor B....