Control Systems Objective Questions & Answers – Set 6

The angle condition is used for checking whether any point lies on root locus or not is........

A control system has open loop transfer function G(S) = k/(s(s+4)(s+6)). Break away point is lies between

Let P = Number of open loop poles and Z = Number of open loop zeros and P>Z, find the number of branches terminating at ∞ ?

A control system has open loop transfer function G(s) = k/(s(s + 2). Find the break away point?

The magnitude condition for root locus is ..................

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

Angle condition for complimentary root locus or inverse root locus is

Find the angles of asymptotes of the open loop transfer function G(s) = k(s + 1)/((s(s+2)(s+4)?

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 s-plane whose coordinates are

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

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?

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

Transfer function of a control system depends on

The poles of the second order system is at -3 ± j4. The damping ratio of the system is

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

A transfer function has its zero in the right half of the s-plane. The function

Given the Laplace transform of f(t) = F(s), the Laplace transform of (f(t)e^-at) is equal to

Which of the following statements is/are true?

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?

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

When deriving the transfer function of linear element

Consider a point S = -3 + j4 in the s-plane. Then for a system with the open loop transfer function G(s)H(s) = k/(s + 1)⁴ ?

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

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?

The characteristic equation has the following roots for over damped stable system?

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

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

The characteristic equation of a control system is given below: F(s) = s⁴ + s3³ +3s² + 2s +5 =0. The system is

Electrical analogous element for damper element in mechanical translation system?

Angle of asymptotes for complimentary root locus is