The output of a feedback control system must be a function of?

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The output of a feedback control system must be a function of?

The output of a feedback control system must be a function of reference and output.

Related questions

For a 2nd order feedback control system, the peak resonance magnitude should be Mp ≤ 1.15. Hence the damping ratio (δ) is  (a) 0.1 (d) 0.5 (c) 0.707 (d) 1

For a feedback control system of type 2, the steady error for a rap input is  A) Infinite B) Constant C) Zero D) Indeterminate

A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system (A) crosses the real axis at +0.1 (B) crosses the real axis at -0.1. (C) crosses the imaginary axis at -0.1 (D) crosses the imaginary axis at +0.1

In the Bode plot of a unity feedback control system, the value of phase of G(jw) at the gain cross -over frequency is - 125°.. The phase margin of the system is (a) - 125° (b) - 55° (c) 55° (d) 125°

If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is?

For a stable feedback control system, the phase margin is  a) always positive b) always negative c) may be positive or negative d) always greater than 180o

For a desirable transient response of a second order system, the damping ratio must be between (a) 0.4 and 0.8 (b) 0.8 and 1.0 (c) 0.3 and 0.5 (d) 0.2 and 0.4

In a control system the output of the controller is given to?

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A control system in which the control action is somehow dependent on the output is known as?

Introduction of integral action in the forward path of a unity feedback system results in a  A) Marginally stable system B) System with no steady state error C) System with increased stability margin D) System With better speed of response

Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is

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For a system with derivative feedback, forward path transfer is G(s) = I / (s2 + s + 1) and feedback path transfer is H(s) = Ks. What is the value of K to obtain a critically-damped closed loop transient response.  (a) 0.5 (b) 0.707 (c) 1 (d) 1.414

Transfer function of a system is used to calculate  (a) the steady state gain (b) the time constant (c) the order of the system (d) the output for a given input

In a control system, the comparator measures the difference between (a) output and input (b) output of controller and system (c) actual and desired performance (d) input and error signal

For a type three-control system the asymptote at lower frequency will have a slope  A) – 6 db per octave B) – 18 db per octave C) – 20 db per octave D) – 60 db per octave

The first order control system, which is well designed, has a?

With negative feedback, the system stability and system gain respectively (a) Increases and increases (b) Increases and decreases (c) Decreases and increases (d) Decreases and decreases

The transient response, with feedback system,?

The dc gain of the system represented by the transfer function G(s)=(s+6)/((s+2)(s+3)) is  A) 1 B) 2 C) 5 D) 6

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The damping factor of a particular system is unity, the system response will be

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In a second order system the value of resonant peak will be unity when the damping ratio has a value of  A) Zero B) Unity C) 0.707 D) 0.414

When the initial conditions of a system are specified to be zero it implies that the system is?

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A control system with excessive noise, is likely to suffer from?

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A control system working under unknown random actions is called

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The open loop control system is one in which _____.

What is the automatic control system?

The effect of negative feedback on distortion and bandwidth is A) Both distortion and bandwidth get decreased B) Both distortion and bandwidth get increased C) Distortion is reduced and bandwidth is increased D) Distortion is increased and bandwidth is decreased

How can the steady-state error in a system be reduced?  (1) By decreasing the type of system (2) By increasing system gain (3) By decreasing the static error constant (4) By increasing the input