Control Systems Objective Questions & Answers
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The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) =0 What are the angles of asymptotes for the root loci for k ≥ 0?
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Angle condition for complimentary root locus or inverse root locus is
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Let P = Number of open loop poles and Z = Number of open loop zeros and P>Z, find the number of branches terminating at ∞ ?
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Consider the function F(s) = ω/(s²+ω²). Where F(s) = Laplace transform of f(t). The final value of f(t) is equal to
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When deriving the transfer function of linear element
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What will be the type of the system, if the steady state performance of control system yields a non zero finite value of the velocity error constant?
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Find the angles of asymptotes of the open loop transfer function G(s) = k(s + 1)/((s(s+2)(s+4)?
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The transfer function of a linear time invariant system is given as G(s) = 10/(s² + 10s + 10). The steady state value of the output of the system for step input applied at time instant t=2 sec will be
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The error of a system to a ramp input is 1/5, if the type of the system is decreased by one, then the error of unit step input is
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A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = 1 + j1 will lie on the root locus of the system is
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The poles of the second order system is at 3 ± j4. The damping ratio of the system is
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The characteristic equation of a control system is give by s(s + 4)(s² + 2s + 1) + k(s + 1) =0. Find the angle between the asymptotes?
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Electrical analogous element for damper element in mechanical translation system?
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A transfer function has its zero in the right half of the splane. The function
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The magnitude condition for root locus is ..................
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A control system has open loop transfer function G(s) = k/(s(s + 2). Find the break away point?
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A transfer function has a zero at s = 1 and poles at s = 1 ± j1. The multiplier being unity, if the input is step function, the steady state response is given by
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Angle of asymptotes for complimentary root locus is
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The open loop transfer function of a unity feedback system is given by G(s) = 1/(s+2)². The closed loop transfer function will have poles at
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Consider a point S = 3 + j4 in the splane. Then for a system with the open loop transfer function G(s)H(s) = k/(s + 1)^{4} ?
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Which of the following statements is/are true?
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The angle condition is used for checking whether any point lies on root locus or not is........
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The characteristic equation has the following roots for over damped stable system?
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A unity feed back system has forward transfer function G(s) = k/((s(s+3)(s+10). The range of k for the system to be stable is
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Transfer function of a control system depends on
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Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e^{at}) is equal to
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A control system has open loop transfer function G(S) = k/(s(s+4)(s+6)). Break away point is lies between
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The characteristic equation of a feedback control system is given by s³ + 5s² + (k + 6)s + k = 0. In the root loci diagram, the asymptotes of the root loci for large 'k' meet at a point in the splane whose coordinates are
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The transfer function of the system described by d²/dt²(y(t)) + 3d/dt(y(t)) + 2y(t) = 5u(t) with u(t) as input and y(t) as output is
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The characteristic equation of a control system is given below: F(s) = s^{4} + s3³ +3s² + 2s +5 =0. The system is
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