In a control system integral error compensation _______ steady state error.

1 Answer

Answer :

In a control system integral error compensation minimizes steady state error.

Related questions

Description : In order to regulate steady state error to zero, in a negative feedback control system, one employs

Last Answer : In order to regulate steady state error to zero, in a negative feedback control system, one employs Integral control

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

Last Answer : For a feedback control system of type 2, the steady error for a rap input is Zero 

Description : What is the steady state error of type-0 system for ramp input?  A) ∞ B) A/K C) A/(1+K) D) 0

Last Answer : What is the steady state error of type-0 system for ramp input?  A) ∞ B) A/K C) A/(1+K) D) 0

Description : 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

Last Answer : 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

Description : The steady state error of the system can be minimized by

Last Answer : The steady state error of the system can be minimized by increasing gain k

Description : In lag compensator the damping ratio, gain and steady state error (ess) are   (a) Decreases, Decreases and Increases (b) Decreases, Increases and Increases (c) Increases, Increases and Decreases (d) Increases, Decreases and Decreases

Last Answer : In lag compensator the damping ratio, gain and steady state error (ess) are Increases, Decreases and Decreases

Description : 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

Last Answer : Introduction of integral action in the forward path of a unity feedback system results in a System with no steady state error 

Description :  In case of type-1 system steady state acceleration is?

Last Answer :  In case of type-1 system steady state acceleration is infinity.

Description : A linear time -invariant control system with unsatisfactory steady state error is to be compensated. Which is/are the correct type of cascade compensation to be provided ? 1. Lead 2. Lag 3. Lag -lead Select the correct answer using ... given below : (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

Last Answer : A linear time -invariant control system with unsatisfactory steady state error is to be compensated. Which is/are the correct type of cascade compensation to be provided ? 1. Lead 2. Lag 3. Lag -lead Select the correct answer using ... given below : (a) 1 only (b) 2 only (c) 3 only (d) 1, 2 and 3

Description : ______increases the steady state accuracy.

Last Answer : Integrator increases the steady state accuracy.

Description : The transfer function of a system is 10/(1+s) when operating as a unity feedback system, the steady state error to a step input will be a) 0 b) 1/11 c) 10 d) Infinity

Last Answer : Ans: 1/11

Description : Velocity error constant of a system is measured when the input to the system is unit _______ function.

Last Answer : Velocity error constant of a system is measured when the input to the system is unit ramp function.

Description : Describe the following errors and their compensation: (i) Phase error (ii) Speed error

Last Answer : (I) Phase error   1. In the phase error the phase difference angle between ∅ & ∅ is kept by using the shading band/ring  2. If the design and location of Shading band/ring is ... of brake magnet. By changing the position of the brake magnet speed of the rotating disc can be controlled. 

Description : In derivative error compensation the output a) depends on rate of change of actuating signal b) is dependent on actuating signal c) is proportional to the double derivative of the actuating signal d) is directly proportional to the actuating signal.

Last Answer : In derivative error compensation the output depends on rate of change of actuating signal

Description : As shown in the illustration, the circuit which 'shapes' the linear output of the thrust lever so that the steady-state ship speed is linear with respect to that lever's setting is the _____________. EL-0095 A. 'pitch controller' B. 'error amplifier' C. 'function generator' D. 'servo amplifier'

Last Answer : Answer: C

Description : What are the three constants associated with a steady state error.

Last Answer : Positional error constant Velocity error constant Acceleration error constant

Last Answer : The steady state error is defined as the value of error as time tends to infinity.

Description : What is steady state error?

Last Answer : The steady state error is the value of error signal e(t) when t tends to infinity.

Description : If stability error for step input and speed of response be the criteria for design, what controller would you recommend (1) P controller (2) PD controller (3) PI controller (4) PID controller

Last Answer : If stability error for step input and speed of response be the criteria for design, what controller would you recommend (1) P controller (2) PD controller (3) PI controller (4) PID controller

Description : The effect of error damping is to?

Last Answer : The effect of error damping is to reduce steady state error.

Description : Static error co-efficients are used as a measure of the effectiveness of closed loop systems for specified ________ input signal.

Last Answer : acceleration , velocity, position 

Description : As Topnotch Supply's sales force continues to expand, the firm plans to add a fleet of company cars to its sales compensation package. For Topnotch, this would represent a _______ purchase. A)new-task B)modified rebuy C)straight rebuy D)repetitive

Last Answer : A)new-task

Description : _______ control refers to aset of proceduresused torestrict the amount ofdata that the sender can send before waiting foracknowledgment. A) Flow B) Error C) Transmission D) none of the above

Last Answer : Flow

Description : The _______ is a unidirectional protocol that has no flow or error control. A. Simplest B. Simplex C. TCP/IP protocol D. Simplest or Simplex

Last Answer : D. Simplest or Simplex

Description : A low voltage source is being used for testing armature coils. A coil short circuit will be indicated by a _______. A. high voltage reading, while the other coil readings will have an ... the other coil readings are steady D. steady voltmeter reading, while the other coil readings are fluctuating

Last Answer : Answer: B

Description : State the principle of ON-OFF control action. Write its standard equation & define neutral zone.

Last Answer : This is one of the most common & simplest mode of controller. * It has to control two positions of control element, either on or off hence this mode is called as ON OFF controller, it is ... cycling. * The existence of such a neutral zone is an example of desirable hysteresis in a system.

Description : Draw the labeled block diagram of process control system and explain each block.

Last Answer : Explanation - Process control system consists of process or plant, sensor, error detector, automatic Controller, actuator or control element. 1) Process or plant- process means some manufacturing sequence ... process which changes the process variable. Output of this block is denoted by u .

Description : Explain the significance of the Laplace transform in control system.

Last Answer : Significance of Laplace Transform- * Laplace transform convert higher order integral differential equation into simple algebraic form. * Laplace transform converts the differential equation into an algebraic ... equations. * Laplace transform convert time domain to frequency domain (s-plane). 

Description : The open loop control system is one in which _____.

Last Answer : the output is independent of output

Description : 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  

Last Answer : B

Description : 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

Last Answer : For a stable feedback control system, the phase margin is always positive

Description : 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

Last Answer : For a 2nd order feedback control system, the peak resonance magnitude should be Mp ≤ 1.15. Hence the damping ratio (δ) is 0.5

Description : A differentiator is not usually used in control system, because it : - (A) reduces damping  (B) increases error  (C) reduces gain margin  (D) increases input noise

Last Answer : A differentiator is not usually used in control system, because it : - increases input noise

Description : 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

Last Answer : A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system crosses the real axis at -0.1.

Description : Negative feedback in a closed-loop control system DOES NOT (A) reduce the overall gain (B) reduce bandwidth (C) improve disturbance rejection (D) reduce sensitivity to parameter variation

Last Answer : Negative feedback in a closed-loop control system DOES NOT reduce bandwidth

Description : 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°

Last Answer : 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 55°

Description : 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

Last Answer : b

Description : In a closed loop control system  (a) control action depends upon the output and also on the input command (b) output signal is fed back to be compared with the reference signal (c) the accuracy is better than in the open loop system (d) all of the above

Last Answer : In a closed loop control system control action depends upon the output and also on the input command , output signal is fed back to be compared with the reference signal , the accuracy is better than in the open loop system. 

Last Answer : In a closed-loop system in which the output is the speed of a motor, the output rate control can be used to limit the acceleration of the motor.

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

Last Answer : The first order control system, which is well designed, has a large negative transfer function pole.

Last Answer : A differentiator is usually not a part of a control system because it increases input noise.

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

Last Answer : In a control system the output of the controller is given to final control element.

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

Last Answer : A control system with excessive noise, is likely to suffer from saturation in amplifying stages.

Description : _____is an open loop control system.

Last Answer : Field controlled D.C. motor is an open loop control system.

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

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

Description : An automatic toaster is a ______ loop control system.

Last Answer : An automatic toaster is an open loop control system.

Description : A control system working under unknown random actions is called 

Last Answer : A control system working under unknown random actions is called stochastic control system.

Description : In closed loop control system, with positive value of feedback gain the overall gain of the system will

Last Answer : In closed loop control system, with positive value of feedback gain the overall gain of the system will decrease.

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

Last Answer : A control system in which the control action is somehow dependent on the output is known as Closed loop system.

Last Answer : In an open loop control system Output is independent of control input.