71. The asymptotic bode plot for the gain magnitude of a minimum phase system G(s) is shown in figure below.
The steady state error for the ramp input is
The steady state error for the ramp input is
72. Check the system with characteristic equation F(s) = s4 + 3s3 + 2s2 + s + 1 for stability.
73. . . . . . . . . indicate not only whether a system is stable, but also its degree of stability and how stability may be improved if necessary.
74. A process is controlled by PID controller. The sensor has high measurement noise. How can this effect be reduced?
75. A system with a unity gain margin and zero phase margin is . . . . . . . .
76. What is the time response of a system whose poles lie on the right hand side of s-plane?
77. Consider the mechanical system shown in the given figure. If the system is set into motion by unit impulse force, the equation of the resulting oscillation will be:
78. In position control systems, Tachogenerator feedback is used to:
79. A tachometer feedback is used as an inner loop in a position control servo-system. What is the effect of feedback on the gain of the sub-loop incorporating tachometer and on the effective time constant of the system?
80. Which of the following can be used as a tachogenerator in control system?
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