Consider the unity feedback system with open loop transfer function the minimum value of the steady state error to a ramp input r(t) = 6tu(t) is OLTF = K/s(s+1)(s+2)(a) 1(b) 2(c) 3(d) 4The question was asked in an international level competition.My question is based upon Steady-state Errors and Error Constants topic in division Time Response Analysis, Design Specifications and Performance Indices of Control Systems

Consider the unity feedback system with open loop transfer function th

1.	Consider the unity feedback system with open loop transfer function the minimum value of the steady state error to a ramp input r(t) = 6tu(t) is OLTF = K/s(s+1)(s+2)(a) 1(b) 2(c) 3(d) 4The question was asked in an international level competition.My question is based upon Steady-state Errors and Error Constants topic in division Time Response Analysis, Design Specifications and Performance Indices of Control Systems
Answer» Correct choice is (b) 2 To explain: Routh-Hurwitz criterion is USED to calculate the STABILITY of the SYSTEM by checking the sign changes of the first row and from Routh-Hurwitz criterion maximum value of K = 6 ESS = A/Kv for type-1 system and A = 6then for Kv = K/2, ess = 2.

Discussion

No Comment Found

Related InterviewSolutions

Electronic Controller :(a) Flexible operation(b) High torque high speed operation(c) Fire and explosion proof operation(d) No leakageThis question was addressed to me during an interview.This is a very interesting question from Performance Indices in portion Time Response Analysis, Design Specifications and Performance Indices of Control Systems
Which among the following is a disadvantage of modern control theory?(a) Implementation of optimal design(b) Transfer function can also be defined for different initial conditions(c) Analysis of all systems take place(d) Necessity of computational workI have been asked this question in an international level competition.My query is from State Variable Analysis in chapter Time Response Analysis, Design Specifications and Performance Indices of Control Systems
The characteristic equation of a control system is s(s^2+ 6s+13)+K=0. The value of k such that the characteristic equation has a pair of complex roots with real part -1 will be :(a) 10(b) 20(c) 30(d) 40I had been asked this question during an interview.My question is based upon Time Response of Second Order Systems topic in portion Time Response Analysis, Design Specifications and Performance Indices of Control Systems
Rise time, Peak time, maximum peak overshoot, settling time, and steady state error are mutually dependent.(a) True(b) FalseThe question was asked in unit test.The origin of the question is Time Response of Second Order Systems in section Time Response Analysis, Design Specifications and Performance Indices of Control Systems
A linear time invariant single input single output system has the state space model given by dx/dt=Fx+Gu, y=Hz, where . Here, x is the state vector, u is the input, and y is the output. The damping ratio of the system is:(a) 0.25(b) 0.5(c) 1(d) 2The question was posed to me by my school principal while I was bunking the class.I'd like to ask this question from State Variable Analysis topic in division Time Response Analysis, Design Specifications and Performance Indices of Control Systems
Which mechanism in control engineering implies an ability to measure the state by taking measurements at output?(a) Controllability(b) Observability(c) Differentiability(d) AdaptabilityThe question was asked in an interview for internship.I want to ask this question from State Variable Analysis in section Time Response Analysis, Design Specifications and Performance Indices of Control Systems
Deciding the method of control by:(a) The purpose of valve(b) Type of fluid(c) Design and purpose of the system(d) All of the mentionedI had been asked this question by my school teacher while I was bunking the class.Origin of the question is Robotic Control System topic in division Time Response Analysis, Design Specifications and Performance Indices of Control Systems
The laws of Robotics are:(a) A robot may not injure a human being(b) A robot must abbey the order given by human except when conflict with the first law(c) A robot must protect its own existence except when it is violating first and second law(d) Both b and cI have been asked this question in my homework.My question comes from Robotic Control System topic in division Time Response Analysis, Design Specifications and Performance Indices of Control Systems
A plant is controlled by a proportional controller, if time delay element is introduced in the loop its:(a) Phase margin remains the same(b) Phase margin increases(c) Phase margin decreases(d) Gain margin increasesThis question was addressed to me in an international level competition.My question is taken from Effect of Adding a Zero to a System in portion Time Response Analysis, Design Specifications and Performance Indices of Control Systems
Which one of the following is a disadvantage of proportional controller?(a) It is destabilizes the system(b) It produces offset(c) It makes the response faster(d) It has very simple implementationThe question was asked by my college director while I was bunking the class.The above asked question is from Design Considerations for Higher-Order Systems topic in portion Time Response Analysis, Design Specifications and Performance Indices of Control Systems

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment