Control Systems Objective Questions & Answers – Set 3

A lead compensator used for a closed-loop controller has the following transfer function. For such a lead compensator

The value of gain margin of the system having G ( s )H ( s ) = 8 / ( s + 2 )³ is

The characteristic equation of a feedback control is 2s⁴ + s³ + 3s² + 5s + 10 = 0. The no of roots in the right half of the s-plane is

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 ramp input of magnitude 10 is equal to

The amplitude spectrum of a Gaussion pulse is

A system is stable for

The phase of lead compensator of the system G ( s ) = ( s + a ) / ( s + b ) is maximum at

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 final value?

The second order system is defined by 25 / ( s² + 5s + 25) is given step input. The time taken for the output to settle with in 2 % of input is

By using which of the following elements, mechanical translational systems are obtained?

For lead compensator pole lies

Given a unity feedback system with G(s) = k/s(s+4), the value of k for damping ratio of 0.5 is

Number of roots in left hand half of s plane if characteristic equation is s³ - 4s² + s + 6 = 0 ?

The transfer function of two compensator are given below which one is correct?
C₁ = 10(s+1)/s+10 and C₂ s+10/10(s+1)

Which of the following is the analogous quantity for mass element in force-voltage analogy?

Lead network is used to improve

Time taken for the response to raise from zero to 100 % for very first time is called

For type 1 system with parabolic input, the steady state error is

A function of one or more variable which conveys information one to nature of physical phenomenon is called

Name test signals used in time response analysis?

Find the Laplace transform for sinωt?

The impulse response of a linear system is e^-t, (t > 0). The corresponding transfer function is

In control system integrator is represented by

If a body has identical properties all over, it is known as

The type number of the control system with G(s) = k(s+2)/(s(s²+2s+3) is

An open loop, represented by the transfer function G ( s ) = ( s - 1 ) / ( s + 2 )( s + 3 ), is

Time taken by the response to reach and stay within a specified error is called

A linear time invariant system has an impulse response e^2t for t > 0 . If initial condition are 0 and input is e^3t, the output for t > 0 is

what is the Laplace transform of a function δ(t-2)?

Type and order of transfer function G ( s ) = K / {s( s + 2 )}