Control Systems Objective Questions & Answers
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Lead compensator is used to improve 
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The system function N(s) = V(s)/I(s) = (s+3)/(4s+5). The system is initially at rest. If the excitation i(t) is a unit step, which of the following is the initial value?
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What is the order of closed loop system for the plant transfer function G(s) = k/s²(1+Ts) and with unity feedback
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Which of the following statement is/are true statements?
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A certain control system has input u(t) and out put c(t). If the input is first passed through a block having transfer function e^{s} and the applied to the system. The modified output will be
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Open loop transfer function, G(s) = s2/s+2 is a
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Adding a pole to a system transfer function in terms of compensator represents a  compensator ?
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The type of a control system is obtained from  transfer function?
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The inputoutput relationship of a linear time invariant continuous time system is given by r(t) = d²c(t)/dt² + 3 dc(t)/dt + 2 c(t) Where r(t) and c(t) are input and output respectively. What is the transfer function of the system equal to?
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A box which tell the effect of inputs on control sub system is known as
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Transient state analysis deals with 
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Differentiation of parabolic response is a  response?
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What is the type of closed loop system for the plant transfer function G(s) = k/s²(1+Ts) and with unity feedback?
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A second order control system is defined by the following equation: 4 d²c(t)/dt² + 8 dc(t)/dt + 16 c(t) = 16 u(t) The damping ratio and natural frequency for this system are respectively
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which of the following transfer functions represent under damped second order systems?
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The open loop transfer function for unity feedback system is given by 5(1+0.1s) / (s(1+5s)(1+20s)) Find the steady state error for a step input of magnitude 10 is equal to
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The transfer function for tachometer E(S)/θ(S) is
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The unit impulse response of second order system is 1/6 * e^{0.8t} sin(0.6t). THen the natural frequency is
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The open loop transfer function of a unity feedback control system is given by G(s) = k/s(s+1). If gain k is increased to infinity, then damping ratio will tend to become
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A linear time invariant system, initially at rest when subjected to a unit step input gave response c(t) = tet (t ≥ 0). The transfer function of the system is
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Weighting function is in terms of 
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Lowest critical frequency is due to pole and it may be present origin or nearer to origin, then it is which type of network?
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The steady state error due to ramp input for a type two system is equal to
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When compared a 1st order LPF with a 2nd order LPF has
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The impulse response of a system is c(t) = tet + 2 et (t>0). Its closed loop transfer function is
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Advantages of open loop system is/are?
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The impulse response of a system is c(t) = te^{t} + 2 e^{t} (t>0). Its open loop transfer function is
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Given the transfer function G(s) = 121/(s² + 13.2s + 121) of a system. Which of the following characteristics does it have?
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Consider a network function H(s) = 2(s+3)/((s+2)(s+4)). What is the steady state response due to step input?
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What is the open loop DC gain of a unity feedback control system having closed loop transfer function is (s + 4)/(s² + 7s +13) ?
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